Tooth radiator for assembled frequency converter

Abstract

The invention provides a tooth radiator for an assembled frequency converter, and relates to the technical field of frequency converter heat radiation. The mounting mechanism comprises a shell, a rectangular through groove is formed in the upper end of the shell, when dust is accumulated among the cooling fins, limiting is relieved by pressing side blocks, the base drives the vertical rods to deviate, elastic pieces in sliding grooves can drive sliding pieces to enable the vertical rods to slide along gaps of the cooling fins, and therefore dust in the gaps is removed; therefore, the radiator can be cleaned without disassembling the whole structure of the radiator, compared with a traditional complete disassembling and cleaning mode, the maintenance time and the labor cost are greatly reduced, and the problems that after the radiator is used for a long time, gaps between tooth pieces of the radiator easily adsorb environmental dust to form a dust deposition layer, the convective heat transfer coefficient is reduced, and the service life of the radiator is prolonged are solved. The problems that a large amount of time needs to be consumed and the use of the radiator is affected due to the fact that the radiator needs to be detached if the radiator needs to be cleaned in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of frequency converter heat dissipation, and in particular to an assembled gear fin heat sink for a frequency converter. Background Art

[0002] With the continuous advancement of industrial automation, inverters, as the core power control devices for AC motors, achieve efficient speed regulation and energy-saving control by adjusting the motor's operating power supply frequency. They are widely used in industrial production lines, elevator drives, air-conditioning systems, and other fields. However, due to the operating characteristics of high-frequency pulse-width modulation (PWM) technology, the power devices within the inverter (such as IGBT modules and rectifier bridge stacks) generate a large amount of Joule heat under high-frequency, high-voltage, and high-speed switching conditions. Combined with the increased device layout density brought about by the miniaturization of integrated circuits, the heat flux density per unit volume of the core electronic modules has increased dramatically. According to industry statistics, when the junction temperature of power devices exceeds the rated operating temperature (typically 125°C), their failure rate increases exponentially. Therefore, efficient heat dissipation has become a key technical link in ensuring the reliability and lifespan of inverters. Currently, fin-type heat sinks are the mainstream heat dissipation solution for inverters, dissipating heat through heat exchange.

[0003] However, there are still some shortcomings in the current design of gear fin heat sinks for inverters: First, after a radiator has been used for a long time, the gaps between the fins are prone to absorbing environmental dust to form a dust layer, which reduces the convective heat transfer coefficient and affects the heat dissipation effect of the radiator. If you want to clean it, you need to disassemble the radiator, which not only takes a lot of time but also affects the use of the radiator. Secondly, the existing radiator has a single heat dissipation path. When dust accumulates on the teeth and blocks the air duct, even if the fan speed is increased, the thermal resistance of the radiator will still increase significantly, making it difficult to meet the heat dissipation requirements of high-power density inverters under long-term continuous operation conditions. Summary of the Invention

[0004] In response to the above problems, one purpose of the present invention is to make up for these shortcomings, and more specifically to provide an assembled gear fin heat sink for an inverter, which can facilitate the cleaning of dust between the fins of the heat sink without the need to disassemble the heat sink, and can provide an additional heat dissipation path to prevent the heat dissipation effect from being affected when the only heat dissipation path cannot be used.

[0005] 14. The heat dissipation device as claimed in claim 13, wherein the bridge has two opposite ends, and the ends are connected along the length of the heat dissipation device to form a round shank, and the ends are connected along the length of the heat dissipation device to form a round shank. The heat dissipation device is a heat dissipation device for use in a heat dissipation device. The heat dissipation device is a heat dissipation device for use in a heat dissipation device.

[0006] Preferably, the installation mechanism includes: a front baffle, a rear baffle, a slot and an insert plate; the front baffle is installed on the front inner end of the shell through a hinge; the rear baffle is installed on the rear side of the shell through a hinge; air holes are provided inside the front baffle and the rear baffle; the slot is opened at the upper end of the shell; and the insert plate is inserted into the slot.

[0007] Preferably, the installation mechanism includes: a movable groove, a lifting plate and a heat dissipation fan; the movable groove is opened at the front side of the lower end of the shell; the lifting plate is slidably installed inside the movable groove through spring cooperation, and the C-shaped plates on the upper ends of both sides of the lifting plate extend into the interior of the shell; the heat dissipation fan is arranged inside the front side of the shell, and the two ends of the heat dissipation fan are plugged into the C-shaped plates on the lifting plate.

[0008] Preferably, the mounting mechanism includes: a limiting hole, a fixing groove and a sliding groove; the limiting hole is opened at the left front end of the shell; the fixing groove is opened at the left front end of the shell, and the rear side of the fixing groove is adjacent to the limiting hole; the sliding groove is opened in the middle position of the lower end inside the shell.

[0009] Preferably, the mounting mechanism includes: a ventilation groove A and a ventilation groove B; the ventilation groove A is opened at the upper left end of the shell, and the ventilation groove A is connected to the inner side of the front lower end shell; the ventilation groove B is opened at the upper right end of the shell, and the ventilation groove B runs through the rear side of the shell.

[0010] Preferably, the heat dissipation mechanism includes: a substrate, a heat sink, a docking groove and a heat dissipation hole; the substrate is a rectangular structure; the heat sink is equidistantly arranged below the substrate, and the front side of the heat sink is adjacent to the heat dissipation fan; the docking groove is opened in the middle position of the front and rear sides of the substrate; the heat dissipation holes are equidistantly arranged at the inner end of the substrate, and the heat dissipation holes pass through both sides of the substrate.

[0011] Preferably, the sliding mechanism includes: a sliding member and a base; the sliding member is a rectangular structure, and the sliding member is located below the front side of the heat sink; the base is slidably installed inside the sliding member through spring cooperation.

[0012] Preferably, the sliding mechanism comprises: a vertical rod and a side block; the vertical rod is equidistantly arranged above the base; the side block is arranged on the left side of the base, and the side block passes through the sliding member.

[0013] Preferably, the connecting mechanism includes: a fixing frame and a mounting plate; a rectangular through slot is provided in the middle of the fixing frame, and the fixing frame is arranged at the left rear of the heat dissipation fan; and the mounting plates are symmetrically arranged on both sides of the outside of the fixing frame.

[0014] Preferably, the connecting mechanism includes: a rotating member and a connecting groove; the rotating member is rotatably mounted on the inner side of the end of the fixed frame; the connecting groove is opened inside the rotating member, and by rotating the rotating member, the connecting groove can be connected to the rectangular through groove in the fixed frame.

[0015] The present invention provides an assembled fin heat sink for a frequency converter, which has the following beneficial effects: 1. The present invention provides a sliding mechanism, wherein a sliding member is slidably provided on the front side of the heat sink, and a base with a vertical rod is slidably installed in the sliding member, and the side block is inserted into the limit hole to fix the sliding member in front of the heat sink. When dust accumulates between the heat sinks, the limit is released by pressing the side block, so that the base drives the vertical rod to deflect, and the elastic member in the slide groove can drive the sliding member to make the vertical rod slide along the gap between the heat sinks, thereby removing the dust in the gap. In this way, the radiator can be cleaned without disassembling the entire structure. Compared with the traditional method of complete disassembly and cleaning, the maintenance time and labor cost are greatly reduced.

[0016] 2. The present invention forms a multi-path heat dissipation system by combining the innovative design of the heat dissipation mechanism and the connecting mechanism. On the one hand, the heat dissipation of the heat sink is carried out by means of the heat dissipation fan; on the other hand, the ventilation groove B, the heat dissipation holes and the ventilation groove A are connected to construct a new ventilation path. When the heat sink is dusty and the conventional air cooling efficiency decreases, the connecting groove is connected with the ventilation groove A by rotating the rotating part, so that the heat dissipation fan can directly dissipate heat from the substrate with the help of the newly added air duct. This dual-channel heat dissipation mode has higher reliability and selectivity, and when the two heat dissipation channels are used at the same time, it can also enhance the heat dissipation effect of the radiator on the inverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following drawings will provide a better understanding of the present invention and will more clearly demonstrate the advantages of the present invention. The drawings described herein are for illustrative purposes only of selected embodiments, not all possible implementations, and are not intended to limit the scope of the present invention.

[0018] In the attached figure: Figure 1 A schematic diagram of a three-dimensional structure according to an embodiment of the present invention is shown.

[0019] Figure 2 A schematic diagram of a half-section structure according to an embodiment of the present invention is shown.

[0020] Figure 3 An exploded view of an embodiment according to the present invention is shown.

[0021] Figure 4 A schematic diagram of a front bottom cross-sectional structure according to an embodiment of the present invention is shown.

[0022] Figure 5 A schematic diagram of a front upper end cross-sectional structure according to an embodiment of the present invention is shown.

[0023] Figure 6 A schematic side cross-sectional view of an embodiment of the present invention is shown.

[0024] Figure 7 A partial cross-sectional structural schematic diagram according to an embodiment of the present invention is shown.

[0025] Figure 8 A schematic diagram of the internal structure of the installation mechanism according to an embodiment of the present invention is shown.

[0026] Figure 9 A schematic cross-sectional structural diagram of a sliding mechanism according to an embodiment of the present invention is shown.

[0027] Reference Signs List 1. Installation mechanism; 101, housing; 1011, front baffle; 1012, rear baffle; 102, slot; 1021, plug-in board; 103, movable slot; 1031, lifting plate; 1032, cooling fan; 104, limiting hole; 105, fixing groove; 106, sliding groove; 107, ventilation slot A; 1071, ventilation slot B; 2. Heat dissipation mechanism; 201, substrate; 2011, heat sink; 202, docking slot; 203, heat dissipation hole; 3. Sliding mechanism; 301, sliding member; 3011, base; 302, vertical bar; 303, side block; 4. Connecting mechanism; 401, fixing frame; 4011, mounting plate; 402, rotating member; 4021, connecting groove. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1: Please refer to Figures 1 to 9 As shown: The present invention provides an assembled fin heat sink for a frequency converter, comprising: a mounting mechanism 1; the mounting mechanism 1 comprises a housing 101, the upper end of the housing 101 being provided with a rectangular through slot; a heat dissipation mechanism 2 is provided on the mounting mechanism 1, a base plate 201 of the heat dissipation mechanism 2 is inserted into the upper end of the interior of the housing 101, and a docking slot 202 in the base plate 201 is plugged into and matched with an insert plate 1021 at the upper end of the housing 101, and a heat dissipation hole 203 in the base plate 201 is connected to a vent groove A107 and a vent groove B1071 in the interior of the housing 101; a sliding mechanism 3 is provided on the mounting mechanism 1, a sliding member 301 of the sliding mechanism 3 is provided on the inner side of the housing 101, and a heat dissipation hole 203 in the base plate 201 is connected to a vent groove A107 and a vent groove B1071 in the interior of the housing 101; At the inner end, the lower end of the sliding member 301 slides in cooperation with the slide groove 106 in the shell 101 through a spring, and the vertical rod 302 above the sliding member 301 is arranged corresponding to the heat sink 2011 on the substrate 201, and the side block 303 extending from the inside of the sliding member 301 is plugged into the limiting hole 104 at the side end of the shell 101; a connecting mechanism 4 is provided on the installation mechanism 1, and the fixing frame 401 of the connecting mechanism 4 is provided on the inner front side of the shell 101, and the rectangular through groove inside the fixing frame 401 is connected to the air vent A107, and the mounting plate 4011 at the outer end of the fixing frame 401 is plugged into the fixing groove 105 at the side end of the shell 101.

[0030] In the embodiment of the present invention, Figures 4 to 8As shown, the mounting mechanism 1 includes: a front baffle 1011, a rear baffle 1012, a slot 102 and an inserting plate 1021; the front baffle 1011 is mounted on the front inner end of the shell 101 through a hinge; the rear baffle 1012 is mounted on the rear side of the shell 101 through a hinge; air vents are provided inside the front baffle 1011 and the rear baffle 1012; the slot 102 is provided at the upper end of the shell 101; the inserting plate 1021 is plugged into the slot 102; a movable slot 103, a lifting plate 1031 and a cooling fan 1032; the movable slot 103 is provided at the front side of the lower end of the shell 101; the lifting plate 1031 is slidably mounted inside the movable slot 103 by spring engagement, and the C-shaped plates at the upper ends of both sides of the lifting plate 1031 extend into the inner portion of the shell 101 The cooling fan 1032 is provided inside the front side of the shell 101, and the two ends of the cooling fan 1032 are plugged into the C-shaped plate on the lifting plate 1031; the limiting hole 104, the fixing groove 105 and the slide 106; the limiting hole 104 is provided at the front end of the left side of the shell 101; the fixing groove 105 is provided at the front end of the left side of the shell 101, and the rear side of the fixing groove 105 is adjacent to the limiting hole 104; the slide 106 is provided in the middle position of the lower end of the interior of the shell 101; the ventilation groove A107 and the ventilation groove B1071; the ventilation groove A107 is provided at the upper left end of the shell 101, and the ventilation groove A107 is connected to the inner side of the lower front end shell 101; the ventilation groove B1071 is provided at the upper right end of the shell 101, and the ventilation groove B107 is provided at the lower right end of the shell 101. 1 passes through the rear side of the housing 101; a front baffle 1011 and a rear baffle 1012 are provided to protect the heat dissipation mechanism 2 and the heat dissipation fan 1032 inside the housing 101; a rectangular slot 102 is provided, and an inserting plate 1021 can be inserted into the upper end of the housing 101 through the slot 102; a rectangular inserting plate 1021 is provided, and the substrate 201 can be fixed in the housing 101 by inserting the inserting plate 1021 into the docking slot 202; a rectangular movable slot 103 is provided, and the lifting plate 1031 can be slidably installed into the housing 101 through the movable slot 103; a lifting plate 1031 is provided, and the heat dissipation fan 1032 can be moved inside the housing 101 by engaging the C-shaped plates at both ends of the lifting plate 1031 with the heat dissipation fan 1032. The cooling fan 1032 is provided, and by turning on the cooling fan 1032, the air inside the housing 101 can be circulated, thereby facilitating the heat dissipation of the heat sink 2011; a circular limiting hole 104 is provided, and by plugging the limiting hole 104 into the side block 303, the sliding member 301 can be limited inside the housing 101; a fixing groove 105 is provided, and by plugging the fixing groove 105 into the mounting plate 4011, the fixing frame 401 can be fixed inside the housing 101; a slide groove 106 is provided, and the sliding member 301 can be slidably installed to the interior of the housing 101 through the slide groove 106; a ventilation groove A107 is provided, and the air inside the heat dissipation hole 203 can be sucked into the interior of the housing 101 through the ventilation groove A107;A ventilation slot B1071 is provided to draw external air into the heat dissipation hole 203 through the ventilation slot B1071, thereby improving air circulation in the heat dissipation hole 203. At the same time, a filter can be installed in the ventilation slot B1071 to prevent dust from entering the interior.

[0031] In the embodiment of the present invention, Figure 3 As shown, the heat dissipation mechanism 2 includes: a base plate 201, a heat sink 2011, a docking slot 202 and a heat dissipation hole 203; the base plate 201 is a rectangular structure; the heat sink 2011 is equidistantly arranged below the base plate 201, and the front side of the heat sink 2011 is adjacent to the heat dissipation fan 1032; the docking slot 202 is opened in the middle position between the front and rear sides of the base plate 201; the heat dissipation holes 203 are equidistantly arranged at the inner end of the base plate 201, and the heat dissipation holes 203 pass through both sides of the base plate 201; the base plate 201 is arranged, and by attaching the base plate 201 to the position of the heat source of the inverter, the base plate 201 can conduct heat to the heat source on the inverter, thereby playing a role in heat dissipation; the heat sink 2011 is provided to increase the heat dissipation area of ​​the base plate 201; the docking slot 202 is provided, and by plugging the docking slot 202 with the plug-in board 1021, the base plate 201 can be fixed inside the housing 101; the heat dissipation holes 203 are provided, and the heat dissipation holes 203 can be directly dissipated to the inside of the base plate 201 through the heat dissipation holes 203.

[0032] As a second embodiment of the present invention, based on the first embodiment, Figure 9 As shown, the sliding mechanism 3 includes: a sliding member 301 and a base 3011; the sliding member 301 is a rectangular structure, and the sliding member 301 is located below the front side of the heat sink 2011; the base 3011 is slidably installed inside the sliding member 301 through spring cooperation; vertical rods 302 and side blocks 303; the vertical rods 302 are equidistantly arranged above the base 3011; the side blocks 303 are arranged on the left side of the base 3011, and the side blocks 303 pass through the sliding member 301.

[0033] The present invention slides the sliding member 301 onto the inner side of the shell 101, slides the base 3011 with the vertical rod 302 inside the sliding member 301, and inserts the side block 303 into the limiting hole 104, so that the sliding member 301 is fixed on the front side of the heat sink 2011. When dust is mixed in the gap between the heat sinks 2011, the side block 303 is pressed inward so that the limiting hole 104 loses the limit on the sliding member 301. At this time, the vertical rod 302 is staggered with the heat sink 2011, and the elastic member in the slide groove 106 pushes the sliding member 301 to move the vertical rod 302 along the gap between the heat sinks 2011, thereby cleaning the dust mixed in between the heat sinks 2011.

[0034] As the third embodiment of the present invention, based on the first embodiment, Figure 7As shown, the connecting mechanism 4 includes: a fixing frame 401 and a mounting plate 4011; a rectangular through groove is opened in the middle position inside the fixing frame 401, and the fixing frame 401 is arranged at the left rear of the heat dissipation fan 1032; the mounting plate 4011 is symmetrically arranged on both sides of the outside of the fixing frame 401; a rotating member 402 and a connecting groove 4021; the rotating member 402 is rotatably installed on the inner side of the end of the fixing frame 401; the connecting groove 4021 is opened inside the rotating member 402, and by rotating the rotating member 402, the connecting groove 4021 can be connected to the rectangular through groove in the fixing frame 401.

[0035] The present invention installs a fixing frame 401 inside the shell 101, so that the rectangular through groove in the fixing frame 401 is connected to the air vent groove A107, and the air vent groove A107 and the air vent groove B1071 are connected to the two sides of the heat dissipation hole 203. When dust is mixed between the heat sink 2011 and the ventilation and heat dissipation function is reduced, the rotating part 402 is rotated to make the connecting groove 4021 in the rotating part 402 connected to the rectangular through groove in the fixing frame 401. At this time, the heat dissipation fan 1032 sucks the air inside the shell 101 to allow external ventilation, which passes through the air vent groove B1071, the heat dissipation hole 203, the air vent groove B1071 and the connecting groove 4021 in turn. This can directly increase the flowability of the air inside the heat dissipation hole 203 and directly dissipate heat for the substrate 201.

[0036] The specific usage and function of this embodiment are as follows: In the present invention, Figures 1 to 9As shown, the substrate 201 with the heat sink 2011 is inserted into the housing 101 from the upper end thereof, and then the insert plate 1021 is inserted into the docking groove 202 through the slot 102 to fix the substrate 201 in the housing 101. After installation, the two ends of the heat dissipation hole 203 on the substrate 201 are connected to the ventilation groove A107 and the ventilation groove B1071 respectively. The sliding member 301 is slidably installed in the housing 101 through the sliding groove 106, and the base 3011 with the vertical rod 302 is slidably installed in the sliding member 301. The base 3011 is fixed to the housing 101. Insert the side block 303 on the left side of 11 into the limiting hole 104, so that the sliding member 301 is fixed on the front side of the heat sink 2011, and insert the fixing frame 401 into the interior of the housing 101 through the fixing slot 105, so that the rectangular through slot in the fixing frame 401 is connected to the ventilation slot A107, rotate the rotating member 402, so that the connecting slot 4021 in the rotating member 402 is connected to the ventilation slot A107, install the heat dissipation fan 1032 into the interior of the housing 101, so that the heat dissipation fan 1032 is on the front side of the fixing frame 401, and move the C at both ends of the lifting plate 1031. The shaped plate is engaged with the heat dissipation fan 1032 and fixed inside the housing 101. The heat dissipation fan 1032 is powered on and the housing 101 is installed to the outer end of the inverter so that the substrate 201 is attached to the heat source position of the inverter. The heat dissipation fan 1032 is started and the external air flow enters the housing 101 through the rear baffle 1012 and takes away the heat after passing through the heat sink 2011. The hot air flow is blown out by the heat dissipation fan 1032 and the external air flow enters the ventilation slot B1071 and then enters the heat dissipation hole 203, thereby heating the substrate 201. 01 is taken away, and then the heat is blown out through the cooling fan 1032. When the dust between the heat sinks 2011 needs to be cleaned, the side block 303 is pressed through the limiting hole 104 to stagger the vertical rod 302 with the heat sink 2011, and then slide along the gap between the heat sinks 2011 to remove the dust in the gap. After opening the rear baffle 1012, the dust can be taken out from the inside of the shell 101. After cleaning, the sliding part 301 is reset and the side block 303 is reinserted into the limiting hole 104.

[0037] In this article, there are several points to note: 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention. Other structures may refer to conventional designs.

[0038] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to form new embodiments.

[0039] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A gear fin heat sink for an assembled inverter, comprising: The mounting mechanism (1) comprises a shell (101), and a rectangular through slot is provided at the upper end of the shell (101); the mounting mechanism (1) is characterized in that a heat dissipation mechanism (2) is provided on the mounting mechanism (1), a base plate (201) of the heat dissipation mechanism (2) is inserted into the upper end of the shell (101), and a docking groove (202) in the base plate (201) is plugged into and matched with a plug plate (1021) at the upper end of the shell (101), and a heat dissipation hole (203) in the base plate (201) is connected to a vent groove A (107) and a vent groove B (1071) inside the shell (101); the mounting mechanism (1) is provided with a sliding mechanism (3), and a sliding member (301) of the sliding mechanism (3) is provided at the inner end of the shell (101). The lower end of the sliding member (301) is slidably engaged with the sliding groove (106) in the shell (101) through a spring engagement, and the vertical rod (302) above the sliding member (301) is correspondingly arranged with the heat sink (2011) on the base plate (201), and the side block (303) extending from the interior of the sliding member (301) is plugged into the limiting hole (104) at the side end of the shell (101); the installation mechanism (1) is provided with a connecting mechanism (4), and the fixing frame (401) of the connecting mechanism (4) is arranged on the front side of the interior of the shell (101), the rectangular through groove inside the fixing frame (401) is connected to the air-permeable groove A (107), and the installation plate (4011) at the outer end of the fixing frame (401) is plugged into the fixing groove (105) at the side end of the shell (101).

2. The assembled fin heat sink for a frequency converter according to claim 1, characterized in that: The mounting mechanism (1) comprises: a front baffle (1011), a rear baffle (1012), a slot (102), and an inserting plate (1021); the front baffle (1011) is mounted on the front inner end of the housing (101) via a hinge; the rear baffle (1012) is mounted on the rear side of the housing (101) via a hinge; ventilation holes are provided inside the front baffle (1011) and the rear baffle (1012); the slot (102) is provided at the upper end of the housing (101); and the inserting plate (1021) is inserted into the slot (102).

3. The assembled fin heat sink for a frequency converter according to claim 1, characterized in that: The mounting mechanism (1) comprises: a movable groove (103), a lifting plate (1031) and a heat dissipation fan (1032); the movable groove (103) is provided at the front side of the lower end of the housing (101); the lifting plate (1031) is slidably mounted inside the movable groove (103) by means of a spring, and the C-shaped plates at the upper ends of both sides of the lifting plate (1031) extend into the interior of the housing (101); the heat dissipation fan (1032) is provided inside the front side of the housing (101), and the two ends of the heat dissipation fan (1032) are plugged into the C-shaped plates on the lifting plate (1031).

4. The assembled fin heat sink for a frequency converter according to claim 1, characterized in that: The mounting mechanism (1) comprises: a limiting hole (104), a fixing groove (105) and a sliding groove (106); the limiting hole (104) is provided at the front end of the left side of the shell (101); the fixing groove (105) is provided at the front end of the left side of the shell (101), and the rear side of the fixing groove (105) is adjacent to the limiting hole (104); the sliding groove (106) is provided at the middle position of the lower end inside the shell (101).

5. The assembled fin heat sink for a frequency converter according to claim 1, characterized in that: The mounting mechanism (1) comprises: a ventilation groove A (107) and a ventilation groove B (1071); the ventilation groove A (107) is provided at the upper left end of the shell (101), and the ventilation groove A (107) is connected to the inner side of the front lower end shell (101); the ventilation groove B (1071) is provided at the upper right end of the shell (101), and the ventilation groove B (1071) passes through the rear side of the shell (101).

6. The assembled fin heat sink for a frequency converter according to claim 1 or 3, characterized in that: The heat dissipation mechanism (2) comprises: a base plate (201), a heat sink (2011), a docking groove (202), and a heat dissipation hole (203); the base plate (201) is a rectangular structure; the heat sink (2011) is equidistantly arranged below the base plate (201), and the front side of the heat sink (2011) is adjacent to the heat dissipation fan (1032); the docking groove (202) is provided in the middle position between the front and rear sides of the base plate (201); the heat dissipation hole (203) is equidistantly arranged at the inner end of the base plate (201), and the heat dissipation hole (203) passes through both sides of the base plate (201).

7. The assembled fin heat sink for a frequency converter according to claim 1, characterized in that: The sliding mechanism (3) comprises: a sliding member (301) and a base (3011); the sliding member (301) is a rectangular structure, and the sliding member (301) is located below the front side of the heat sink (2011); the base (3011) is slidably mounted inside the sliding member (301) through spring engagement.

8. The assembled fin heat sink for a frequency converter according to claim 7, characterized in that: The sliding mechanism (3) comprises: a vertical rod (302) and a side block (303); the vertical rod (302) is equidistantly arranged above the base (3011); the side block (303) is arranged on the left side of the base (3011), and the side block (303) passes through the sliding member (301).

9. The assembled fin heat sink for a frequency converter according to claim 1 or 3, characterized in that: The communication mechanism (4) comprises: a fixing frame (401) and a mounting plate (4011); a rectangular through slot is provided in the middle of the fixing frame (401), and the fixing frame (401) is arranged at the left rear of the heat dissipation fan (1032); and the mounting plate (4011) is symmetrically arranged on both sides of the outside of the fixing frame (401).

10. The assembled fin heat sink for a frequency converter according to claim 9, characterized in that: The communication mechanism (4) comprises: a rotating member (402) and a communication groove (4021); the rotating member (402) is rotatably mounted on the inner side of the end of the fixed frame (401); the communication groove (4021) is provided inside the rotating member (402); and by rotating the rotating member (402), the communication groove (4021) can be connected to the rectangular through groove in the fixed frame (401).

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