Frequency converter

Abstract

The utility model provides a frequency converter, and relates to the technical field of motor control. The frequency converter comprises a shell, a mounting plate, a frequency converter element and a heat dissipation assembly. The shell is provided with an accommodating cavity, the mounting plate is arranged in the accommodating cavity and divides the accommodating cavity into a device cavity and a heat dissipation cavity, and the frequency converter element is arranged in the device cavity; the heat dissipation assembly comprises a heat dissipation plate and a plurality of heat dissipation fins, the heat dissipation plate is detachably connected with the mounting plate, the heat dissipation plate is provided with a plurality of fixing grooves, the heat dissipation fins and the fixing grooves are arranged in a one-to-one correspondence mode, one ends of the heat dissipation fins are connected with the fixing grooves in an inserted mode, the heat dissipation fins are all arranged in the heat dissipation cavity, and the shell is further provided with a heat dissipation opening. The heat dissipation cavity is communicated with the outside of the shell through the heat dissipation opening. According to the frequency converter, the radiating plate is detachably connected with the mounting plate, and the plurality of radiating fins are inserted into the radiating plate, so that the difficulty of integrally casting the radiating fins and the mounting plate can be effectively reduced, and the manufacturing cost of the frequency converter is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of motor control, and in particular to a frequency converter. Background Art

[0002] At present, the water pump frequency conversion energy-saving technology mainly relies on the frequency conversion function of the inverter to adjust the frequency of the water pump to achieve the purpose of energy saving. When the inverter is working, the temperature inside the inverter rises sharply. If the heat inside the inverter cannot be discharged in time, the inverter may not work properly.

[0003] In the existing inverter, the heat sink absorbs the heat inside the inverter and discharges it to the outside of the inverter to achieve the purpose of inverter heat dissipation. However, the setting method of the heat sink of the existing inverter has high requirements for the mold opening of the casting model of the heat sink and the internal mounting plate, which leads to high manufacturing cost of the inverter. Utility Model Content

[0004] The embodiment of the present application provides a frequency converter to solve the problem of high manufacturing cost of existing frequency converters.

[0005] The present application provides a frequency converter, including:

[0006] A housing, a mounting plate, a frequency converter component and a heat dissipation assembly, wherein the housing is provided with a housing cavity, the mounting plate is arranged in the housing cavity and divides the housing cavity into a device cavity and a heat dissipation cavity, and the frequency converter component is arranged in the device cavity;

[0007] The heat dissipation assembly includes a heat dissipation plate and a plurality of heat dissipation fins. The heat dissipation plate is detachably connected to the mounting plate. The heat dissipation plate is provided with a plurality of fixing grooves. The plurality of heat dissipation fins are arranged in a one-to-one correspondence with the plurality of fixing grooves, and one end of the heat dissipation fin is plugged into the fixing groove. The plurality of heat dissipation fins are all arranged in the heat dissipation cavity. The shell is also provided with a heat dissipation port, and the heat dissipation cavity is connected to the outside of the shell through the heat dissipation port.

[0008] In a possible implementation, the frequency converter provided in the embodiment of the present application, the frequency converter element includes:

[0009] An inverter, a capacitor element and a circuit board, wherein the inverter and the capacitor element are both electrically connected to the circuit board.

[0010] In a possible implementation, the frequency converter provided in the embodiment of the present application further includes:

[0011] A circuit board heat conductor, one end surface of which is in contact with the circuit board, and the circuit board heat conductor is used to absorb heat from the circuit board.

[0012] In a possible implementation, in the frequency converter provided in the embodiment of the present application, the mounting plate is provided with a through hole, the through hole connects the device cavity and the heat dissipation cavity, and the heat dissipation plate is mounted at the through hole;

[0013] The other end surface of the circuit board heat conducting member contacts with one end surface of the heat dissipating plate facing the device cavity.

[0014] In a possible implementation, in the inverter provided in the embodiment of the present application, heat dissipation paste is filled between the circuit board heat conductor and the heat sink.

[0015] In a possible implementation, the frequency converter provided in the embodiment of the present application further includes:

[0016] A heat dissipation fan is arranged in the heat dissipation cavity, and the wind direction of the heat dissipation fan is toward the heat dissipation port, and the heat dissipation fan is electrically connected to the circuit board.

[0017] In a possible implementation, in the inverter provided by the embodiment of the present application, the plurality of heat sinks are arranged in parallel and at intervals, and the extension direction of the heat sink is the same as the wind direction of the heat dissipation fan.

[0018] In a possible implementation, in the frequency converter provided in the embodiment of the present application, the mounting plate is provided with a mounting groove, and the inverter and the capacitor element are mounted in the mounting groove.

[0019] In a possible implementation, in the inverter provided by the embodiment of the present application, the mounting slot includes a first mounting slot and a second mounting slot, the converter is detachably mounted in the first mounting slot, and the capacitor element is detachably mounted in the second mounting slot.

[0020] In a possible implementation, in the inverter provided by the embodiment of the present application, the housing includes an upper cover and a base, and the upper cover is detachably connected to the base.

[0021] The embodiment of the present application provides a frequency converter, which includes a housing, a mounting plate, a frequency converter element and a heat dissipation assembly. The housing is provided with a housing cavity, the mounting plate is arranged in the housing cavity and divides the housing cavity into a device cavity and a heat dissipation cavity, and the frequency converter element is arranged in the device cavity; the heat dissipation assembly includes a heat dissipation plate and a plurality of heat sinks, the heat dissipation plate and the mounting plate are detachably connected, the heat dissipation plate is provided with a plurality of fixing grooves, the plurality of heat sinks are arranged one by one with the plurality of fixing grooves, and one end of the heat sink is plugged into the fixing groove, the plurality of heat sinks are all arranged in the heat dissipation cavity, the housing is also provided with a heat dissipation port, and the heat dissipation cavity is connected to the outside of the housing through the heat dissipation port. When the frequency converter is working, the heat generated by the frequency converter element can be transferred to the plurality of heat sinks through the mounting plate and the heat dissipation plate, the plurality of heat sinks exchange heat with the air in the heat dissipation cavity, and the air after heat exchange can be discharged to the outside air through the heat dissipation port, thereby achieving the purpose of discharging the heat inside the frequency converter and ensuring that the frequency converter can work stably. The frequency converter can effectively reduce the difficulty of integrally casting the mounting plate and the heat sink by detachably connecting the heat sink and the mounting plate, and plugging a plurality of heat sinks into the heat sink, thereby reducing the manufacturing cost of the frequency converter. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the embodiments of the present application, and together with the description, are used to explain the principles of the embodiments of the present application.

[0023] Figure 1 A schematic diagram of the structure of a frequency converter provided in an embodiment of the present application;

[0024] Figure 2 A partial structural schematic diagram of a frequency converter provided in an embodiment of the present application;

[0025] Figure 3 for Figure 2 Explosion diagram of

[0026] Figure 4 A schematic diagram of the structure of a heat dissipation component of a frequency converter provided in an embodiment of the present application;

[0027] Figure 5 for Figure 4 A magnified schematic diagram of center A.

[0028] Description of reference numerals:

[0029] 1-shell; 11-upper cover; 12-base;

[0030] 2-mounting plate; 21-through hole; 22-mounting slot;

[0031] 3-heat dissipation assembly; 31-heat dissipation plate; 311-fixing groove; 32-heat dissipation fin;

[0032] 4-Heat dissipation vents.

[0033] The above drawings have shown clear embodiments of the embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the embodiments of the present application in any way, but to illustrate the concepts of the embodiments of the present application for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described in conjunction with the drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the embodiment of the present application. In the embodiment of the present application, the orientation or position relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "back" and the like is based on the orientation or position relationship shown in the drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, the above-mentioned part of the terms can be used to express orientation or position relationship, and may also be used to express other meanings, such as the term "upper" in some cases may also be used to express a certain dependency or connection relationship. For ordinary technicians in this field, the specific meanings of these terms in the embodiment of the present application can be understood according to the specific circumstances.

[0035] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0036] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein. In the embodiments of the present application, words such as "exemplarily" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplarily" or "for example" is intended to present related concepts in a concrete way.

[0037] Unless otherwise stated, the term "plurality" means two or more.

[0038] In order to clearly understand the technical solution of the present application, the solution of the prior art is first introduced in detail.

[0039] At present, water pump frequency conversion energy-saving technology has been widely used in water treatment, heating and industrial cooling and other fields. Specifically, the core of water pump frequency conversion energy-saving technology is to use the frequency converter to dynamically adjust the speed of the water pump motor, thereby effectively reducing energy consumption. However, when the frequency converter is working efficiently, its internal components will generate a lot of heat. If the heat dissipation is not timely, it will directly affect the stability and service life of the frequency converter, and even cause the frequency converter to fail. Existing frequency converters mainly rely on heat sinks for heat dissipation, which absorbs and conducts the heat inside the frequency converter to the external environment. However, most of the heat sinks of existing frequency converters are die-cast as a whole with the mounting plate, and because the arrangement of multiple heat sinks is relatively dense, it is difficult to open the mold of the heat sink and the mounting plate casting model, which increases the manufacturing cost of the frequency converter.

[0040] In order to solve the above problems, the present application provides a frequency converter, including a housing, a mounting plate, a frequency converter element and a heat dissipation assembly. The heat dissipation assembly includes a heat dissipation plate and a plurality of heat sinks, the heat dissipation plate is detachably connected to the mounting plate, and the plurality of heat sinks are plugged into the heat dissipation plate, so that the heat dissipation assembly is detachably connected to the mounting plate through the heat dissipation plate, and the heat sinks are plugged into the heat dissipation plate, which can reduce the difficulty of integrally casting the mounting plate and the heat dissipation assembly, thereby reducing the manufacturing cost of the frequency converter.

[0041] The following specific embodiments are used to describe in detail the technical solutions of the embodiments of the present application and how the technical solutions of the embodiments of the present application solve the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0042] like Figures 1 to 5 As shown, an embodiment of the present application provides a frequency converter, specifically including a housing 1, a mounting plate 2, a frequency converter component and a heat dissipation assembly 3. Among them, the housing 1 is provided with a receiving cavity, the mounting plate 2 is arranged in the receiving cavity and divides the receiving cavity into a device cavity and a heat dissipation cavity, and the frequency converter component is arranged in the device cavity; the heat dissipation assembly 3 includes a heat dissipation plate 31 and a plurality of heat dissipation fins 32, the heat dissipation plate 31 is detachably connected to the mounting plate 2, the heat dissipation plate 31 is provided with a plurality of fixing grooves 311, the plurality of heat dissipation fins 32 are arranged in a one-to-one correspondence with the plurality of fixing grooves 311, and one end of the heat dissipation fin 32 is plugged into the fixing groove 311, and the plurality of heat dissipation fins 32 are all arranged in the heat dissipation cavity, the housing 1 is also provided with a heat dissipation port 4, and the heat dissipation cavity is connected to the outside of the housing 1 through the heat dissipation port 4.

[0043] The housing 1 is used to protect the internal components of the inverter from external environmental interference (such as dust, moisture, vibration, etc.). Furthermore, the housing 1 is made of high-strength and corrosion-resistant materials, such as metal or engineering plastics.

[0044] The accommodating cavity is used to accommodate and protect all internal components of the inverter.

[0045] The mounting plate 2 serves to separate the accommodating cavity and provide a mounting platform. Specifically, the mounting plate 2 divides the accommodating cavity into two spaces: a device cavity and a heat dissipation cavity, which is beneficial to the arrangement of the internal components of the inverter, and the heat dissipation cavity can efficiently dissipate heat; in addition, the mounting plate 2 also serves as a mounting platform for the inverter components, providing an installation position and stable support for the inverter components.

[0046] Optionally, the mounting plate 2 is made of an insulating material having a certain mechanical strength, such as a metal plate or a plastic plate.

[0047] The inverter components are components required for the inverter to work, including but not limited to circuit boards and electronic components.

[0048] Among them, reference Figure 3 As shown in the figure, the heat dissipation assembly 3 is the main component for heat dissipation in the inverter, which includes a heat dissipation plate 31 and a plurality of heat sinks 32. By detachably connecting the heat dissipation plate 31 to the mounting plate 2, the heat dissipation assembly 3 can be conveniently installed or removed from the mounting plate 2, which facilitates the maintenance and replacement of the heat dissipation assembly 3.

[0049] Optionally, in this embodiment, the heat sink 31 is threadedly connected to the mounting plate 2. Of course, in other embodiments, the heat sink 31 can also be connected to the mounting plate 2 by snapping or plugging.

[0050] Specifically, refer to Figure 4 and Figure 5As shown in the figure, a plurality of fixing grooves 311 are provided on the heat sink 31, and one end of a plurality of heat sinks 32 are inserted into the plurality of fixing grooves 311 one by one, so that the plurality of heat sinks 32 are fixedly connected to the heat sink 31, thereby, the plurality of heat sinks 32 can be conveniently and quickly installed and fixed to the heat sink 31. Furthermore, one end of the heat sink 32 is interference fit with the fixing groove 311, thereby, the heat sink 32 can be stably fixed to the heat sink 31.

[0051] Optionally, the plurality of heat sinks 32 and the heat sink plate 31 may be threadedly connected. Alternatively, the plurality of heat sinks 32 may be welded and fixed to the heat sink plate 31 .

[0052] Optionally, in this embodiment, the heat sink 31 and the plurality of heat sinks 32 are made of aluminum or aluminum alloy having good thermal conductivity.

[0053] Specifically, refer to Figures 1 to 5 As shown in , the inverter provided by the embodiment of the present application specifically includes a housing 1, a mounting plate 2, an inverter element and a heat dissipation assembly 3, wherein the heat dissipation assembly 3 includes a heat dissipation plate 31 and a plurality of heat sinks 32, the heat dissipation plate 31 is detachably connected to the mounting plate 2, the heat dissipation plate 31 is provided with a plurality of fixing grooves 311, a plurality of heat sinks 32 are arranged in a one-to-one correspondence with the plurality of fixing grooves 311, and one end of the heat sink 32 is plugged into the fixing groove 311, and the plurality of heat sinks 32 are all arranged in the heat dissipation cavity, and the housing 1 is also provided with a heat dissipation port 4, and the heat dissipation cavity is connected to the outside of the housing 1 through the heat dissipation port 4. When the inverter is working, the heat generated by the inverter element can be transferred to the plurality of heat sinks 32 through the mounting plate 2 and the heat dissipation plate 31, and the plurality of heat sinks 32 exchange heat with the air in the heat dissipation cavity, and the air after heat exchange can be discharged to the outside air through the heat dissipation port 4, thereby achieving the purpose of discharging the heat inside the inverter and ensuring that the inverter can work stably. The frequency converter can effectively reduce the difficulty of integral casting and reduce the manufacturing cost of the frequency converter by detachably connecting the heat sink 31 and the mounting plate 2 and plugging a plurality of heat sinks 32 into the heat sink 31 .

[0054] In an optional embodiment, the frequency converter component includes: an inverter, a capacitor element and a circuit board, and the inverter and the capacitor element are both electrically connected to the circuit board.

[0055] Among them, the inverter is the core component of the frequency converter, which is responsible for converting direct current into alternating current, or in some cases, converting alternating current of one frequency into alternating current of another frequency.

[0056] Among them, capacitor components are mainly used in inverters for filtering, energy storage and power factor correction. Filter capacitors are used to smooth the DC bus voltage, reduce voltage fluctuations, and ensure stable operation of the converter. Energy storage capacitors are used to provide or absorb energy when the converter switch state changes to maintain the stability of the DC bus voltage.

[0057] Among them, the circuit board is the carrier of electrical connection between various components in the inverter. It integrates multiple functional circuits such as control logic, drive circuit, protection circuit, etc., to achieve precise control and protection of components such as inverters and capacitors.

[0058] Optionally, the inverter, the capacitor element and the circuit board can be detachably mounted on the mounting plate 2 .

[0059] Of course, the inverter components are not limited to the above-mentioned inverter, capacitor components, circuit board and other components, which will not be introduced in detail in this embodiment.

[0060] In an optional embodiment, the frequency converter further includes: a circuit board heat conductor, one end surface of the circuit board heat conductor is in contact with the circuit board, and the circuit board heat conductor is used to absorb heat from the circuit board.

[0061] Specifically, the circuit board is the core component of the inverter and is responsible for controlling the operation of the entire inverter. When the inverter is working, a large amount of heat will be generated on the circuit board. By setting a circuit board heat conductor and contacting one end of the circuit board heat conductor with the circuit board, the heat generated by the circuit board is absorbed and transferred to the external environment through a heat conduction path, which can ensure the stable operation of the circuit board.

[0062] Optionally, the circuit board heat conductor is made of a high thermal conductivity material, such as aluminum, copper or thermal conductive silicone, etc. The above materials have good thermal conductivity and can quickly absorb the heat on the circuit board.

[0063] Optionally, in this embodiment, the contact area between the circuit board heat conductor and the circuit board is not limited. It can be understood that the larger the contact area between the circuit board heat conductor and the circuit board, the better the heat conduction effect of the circuit board heat conductor.

[0064] In an alternative embodiment, reference Figure 2 and Figure 3 As shown in the figure, the mounting plate 2 is provided with a through hole 21, the through hole 21 connects the device cavity and the heat dissipation cavity, and the heat dissipation plate 31 is installed at the through hole 21; the other end surface of the circuit board heat conductor is in contact with the end surface of the heat dissipation plate 31 facing the device cavity.

[0065] Specifically, by opening a through hole 21 on the mounting plate 2, the heat sink 31 is installed at the through hole 21, and the other end surface of the circuit board heat conductor is in contact with the heat sink 31, so that the heat of the circuit board heat conductor can be directly and conveniently transferred to the heat sink 31, and after the heat exchange between the multiple heat sinks 32 and the air in the heat dissipation cavity, the heat exchanged air is discharged to the external environment through the heat dissipation port 4. Such an arrangement can efficiently dissipate heat for the inverter and ensure its stable operation.

[0066] In an optional embodiment, heat dissipation paste is filled between the circuit board heat conductor and the heat dissipation plate 31 .

[0067] The thermal paste is a material with high thermal conductivity. By filling the thermal paste between the circuit board heat conductor and the heat sink 31, it can ensure that the heat transfer between the two is more efficient and uniform.

[0068] Specifically, the heat dissipation paste can improve the efficiency of heat conduction, reduce thermal resistance, protect the contact surface, and enhance the stability of the connection. In detail, the high thermal conductivity of the heat dissipation paste allows heat to be transferred from the circuit board heat conductor to the heat sink 31 more quickly, thereby improving the heat dissipation efficiency of the circuit board; the heat dissipation paste fills the gap between the circuit board heat conductor and the heat sink 31, thereby reducing thermal resistance; the heat dissipation paste also has a certain lubrication and anti-corrosion effect, which can protect the contact surface between the circuit board heat conductor and the heat sink 31 from damage or corrosion; the viscosity of the heat dissipation paste also helps to maintain stable contact between the circuit board heat conductor and the heat sink 31, and prevent poor contact caused by vibration or temperature changes.

[0069] In an optional embodiment, the frequency converter further includes: a heat dissipation fan, which is disposed in the heat dissipation cavity, and the wind direction of the heat dissipation fan is toward the heat dissipation port 4, and the heat dissipation fan is electrically connected to the circuit board.

[0070] Specifically, the heat dissipation fan is installed in the heat dissipation cavity of the inverter, which can maximize the heat dissipation effect of the inverter. Further, the wind direction of the heat dissipation fan is designed to be toward the heat dissipation port 4. When the heat dissipation fan is working, the heat dissipation fan can quickly extract the hot air in the heat dissipation cavity and discharge it into the external environment through the heat dissipation port 4.

[0071] Specifically, the cooling fan is electrically connected to the circuit board, and the cooling fan can be started and stopped by the circuit board. Thus, the working state of the cooling fan can be adjusted according to the actual working condition of the inverter, and energy can be saved as much as possible while ensuring the cooling effect.

[0072] Optionally, in this embodiment, the number of cooling fans is not limited and can be increased or decreased according to cooling requirements. Further, when multiple cooling fans are provided, multiple cooling ports 4 are also provided on the housing 1, and multiple cooling fans are installed in a one-to-one correspondence with multiple cooling ports 4, thereby ensuring that the cooling fans can efficiently discharge the hot air in the cooling cavity.

[0073] In an alternative embodiment, reference Figure 3 and Figure 4 As shown in FIG. 1 , a plurality of heat sinks 32 are arranged in parallel and at intervals, and the extending direction of the heat sink 32 is the same as the wind direction of the heat sink fan.

[0074] Specifically, the heat dissipation area of ​​the heat dissipation fins 32 can be ensured by arranging the plurality of heat dissipation fins 32 in parallel and at intervals. The plurality of heat dissipation fins 32 can also be arranged in parallel and at intervals so that the air in the heat dissipation cavity can flow quickly between the heat dissipation fins 32 and fully contact the heat dissipation fins 32, thereby quickly taking away the heat of the heat dissipation fins 32.

[0075] Specifically, the extension direction of the heat sink 32 is the same as the wind direction of the heat sink fan, which can ensure that the wind flow blown by the heat sink fan can directly impact the multiple heat sinks 32, forming effective convection heat exchange, which can accelerate the air flow on the surface of the heat sink 32, and further improve the heat dissipation effect of the heat sink 32. At the same time, due to the intervals between the multiple heat sinks 32, the wind flow can form turbulence when passing through the heat sink 32, increasing the contact time and contact area between the air and the heat sink 32, thereby taking away more heat.

[0076] Specifically, the wind direction of the heat dissipation fan is consistent with the extension direction of the heat dissipation fins 32, which can also reduce noise and vibration problems caused by improper wind flow direction.

[0077] In an alternative embodiment, reference Figure 2 and Figure 3 As shown in FIG. 1 , the mounting plate 2 is provided with a mounting groove 22 , and the inverter and the capacitor element are mounted in the mounting groove 22 .

[0078] Specifically, the installation groove 22 is provided to provide installation space for the inverter and the capacitor element, and the installation groove 22 can protect the inverter and the capacitor element to prevent other elements from colliding with the inverter and the capacitor element.

[0079] The mounting groove 22 is a groove of a specific shape and size opened on the mounting plate 2. Optionally, the shape and size of the mounting groove 22 can be set according to the specific shapes and sizes of the heat exchanger and the capacitor element.

[0080] Optionally, the mounting groove 22 is formed by stamping the mounting plate 2. The mounting plate 2 is plastically deformed by the stamping process to form a solid mounting groove 22 structure. The mounting groove 22 formed in this way has high strength and rigidity, and can withstand large loads and impacts, so as to better protect the inverter and capacitor elements in the mounting groove 22.

[0081] It should be noted that during the installation of the inverter and capacitor components, attention should be paid to the polarity, direction and other requirements of the components to ensure their normal operation.

[0082] Optionally, the mounting groove 22 includes a first mounting groove and a second mounting groove, the inverter is detachably mounted in the first mounting groove, and the capacitor element is detachably mounted in the second mounting groove.

[0083] Specifically, by providing the first installation groove and the second installation groove, separate installation spaces are provided for the inverter and the capacitor element, so that the inverter and the capacitor element will not interfere with each other during the installation process, and the inverter and the capacitor element are easy to disassemble and maintain.

[0084] Optionally, the converter is threadedly connected to the first mounting groove, and the capacitor element is threadedly connected to the second mounting groove. Of course, the converter and the first mounting groove, and the capacitor element and the second mounting groove can also be fixed by snap-fitting or plugging.

[0085] In an alternative embodiment, reference Figure 1 As shown in , the housing 1 includes an upper cover 11 and a base 12, and the upper cover 11 and the base 12 are detachably connected.

[0086] Specifically, the housing 1 is configured to consist of an upper cover 11 and a base 12, and the upper cover 11 and the base 12 are detachably connected, so that the upper cover 11 and the base 12 can be flexibly disassembled, thereby facilitating the installation, disassembly and maintenance of the inverter components.

[0087] Optionally, refer to Figure 1 and Figure 2 As shown in , the mounting plate 2 is detachably connected to the base 12. Thus, when the mounting plate 2 is connected and fixed to the base 12, the mounting plate 2 and the base 12 form a heat dissipation cavity, and when the upper cover 11 is connected and fixed to the base 12, the mounting plate 2 and the upper cover 11 form a device cavity.

[0088] Optionally, a sealing ring is provided at the contact position between the upper cover 11 and the base 12, so that after the upper cover 11 and the base 12 are connected and fixed, external impurities such as dust and water vapor are prevented from entering the interior of the inverter, thereby protecting the internal inverter components.

[0089] Optionally, there are multiple options for the detachable connection between the upper cover 11 and the base 12, such as bolt fixing, clamping, and magnetic connection, etc. The selection can be made according to the actual application scenario, and no specific limitation is made here.

[0090] Those skilled in the art will readily come to other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. The present application embodiment is intended to cover any variation, use or adaptation of the present application embodiment, which follows the general principles of the present application embodiment and includes common knowledge or customary technical means in the art that are not disclosed in the present application embodiment. The specification and embodiments are to be regarded as exemplary only, and the true scope and spirit of the present application embodiment are indicated by the following claims.

[0091] It should be understood that the embodiments of the present application are not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the embodiments of the present application is limited only by the appended claims.

Claims

1. A frequency converter, characterized in that: include: A housing, a mounting plate, a frequency converter component and a heat dissipation assembly, wherein the housing is provided with a housing cavity, the mounting plate is arranged in the housing cavity and divides the housing cavity into a device cavity and a heat dissipation cavity, and the frequency converter component is arranged in the device cavity; The heat dissipation assembly includes a heat dissipation plate and a plurality of heat dissipation fins. The heat dissipation plate is detachably connected to the mounting plate. The heat dissipation plate is provided with a plurality of fixing grooves. The plurality of heat dissipation fins are arranged in a one-to-one correspondence with the plurality of fixing grooves, and one end of the heat dissipation fin is plugged into the fixing groove. The plurality of heat dissipation fins are all arranged in the heat dissipation cavity. The shell is also provided with a heat dissipation port, and the heat dissipation cavity is connected to the outside of the shell through the heat dissipation port.

2. The frequency converter according to claim 1, characterized in that: The inverter components include: An inverter, a capacitor element and a circuit board, wherein the inverter and the capacitor element are both electrically connected to the circuit board.

3. The frequency converter according to claim 2, characterized in that: Also includes: A circuit board heat conductor, one end surface of which is in contact with the circuit board, and the circuit board heat conductor is used to absorb heat from the circuit board.

4. The frequency converter according to claim 3, characterized in that: The mounting plate is provided with a through hole, the through hole connects the device cavity and the heat dissipation cavity, and the heat dissipation plate is mounted at the through hole; The other end surface of the circuit board heat conducting member contacts with one end surface of the heat dissipating plate facing the device cavity.

5. The frequency converter according to claim 4, characterized in that: The space between the circuit board heat conductor and the heat sink is filled with heat dissipation paste.

6. The frequency converter according to any one of claims 2 to 5, characterized in that: Also includes: A heat dissipation fan is arranged in the heat dissipation cavity, and the wind direction of the heat dissipation fan is toward the heat dissipation port, and the heat dissipation fan is electrically connected to the circuit board.

7. The frequency converter according to claim 6, characterized in that: The plurality of heat sinks are arranged in parallel and at intervals, and the extending direction of the heat sink is the same as the wind direction of the heat sink fan.

8. The frequency converter according to any one of claims 2 to 5, characterized in that: The mounting plate is provided with a mounting groove, and the inverter and the capacitor element are mounted in the mounting groove.

9. The frequency converter according to claim 8, characterized in that: The mounting groove includes a first mounting groove and a second mounting groove. The inverter is detachably mounted in the first mounting groove, and the capacitor element is detachably mounted in the second mounting groove.

10. The frequency converter according to any one of claims 1 to 5, characterized in that: The shell comprises an upper cover and a base, and the upper cover is detachably connected to the base.

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