CN223309746U - Frequency converter and vacuum pump - Google Patents
Frequency converter and vacuum pumpInfo
- Publication number
- CN223309746U CN223309746U CN202422462162.9U CN202422462162U CN223309746U CN 223309746 U CN223309746 U CN 223309746U CN 202422462162 U CN202422462162 U CN 202422462162U CN 223309746 U CN223309746 U CN 223309746U
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- China
- Prior art keywords
- frequency converter
- liquid cooling
- chassis
- cooling plate
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
本实用新型公开了一种变频器及真空泵，其中的变频器包括：机箱，设有安装开口；电器组件，设于所述机箱的内部；液冷板，设于所述机箱的外部，所述液冷板覆盖于所述安装开口上；其中，所述电器组件通过所述安装开口与所述液冷板连接，所述液冷板用于与液冷泵连接以对电器组件进行液冷散热。在本实用新型的技术方案中，通过在变频器的机箱上开设连通内外的安装开口，并通过该安装开口使设于机箱内的电器组件和覆盖于安装开口上的液冷板实现连接，从而减小了变频器的体积，使变频器更容易被布置。
The utility model discloses a frequency converter and a vacuum pump, wherein the frequency converter includes: a chassis provided with a mounting opening; an electrical component provided inside the chassis; and a liquid cooling plate provided outside the chassis, the liquid cooling plate covering the mounting opening; wherein the electrical component is connected to the liquid cooling plate via the mounting opening, and the liquid cooling plate is used to connect to a liquid cooling pump to liquid-cool the electrical component. In the technical solution of the utility model, by providing a mounting opening connecting the inside and the outside of the chassis, and connecting the electrical component provided in the chassis and the liquid cooling plate covering the mounting opening through the mounting opening, the size of the frequency converter is reduced, making the frequency converter easier to arrange.
Description
Technical Field
The utility model relates to the field of power electronic equipment, in particular to a frequency converter and a vacuum pump.
Background
Under the prior art, the frequency converter used in the vacuum pump control technology generally uses air cooling heat dissipation as a main heat dissipation means. Because the use of air cooling heat dissipation needs to involve the installation of components including fans, air vents, air channels and the like, the components occupy a certain space layout in the frequency converter, so that the frequency converter is large in size and limited in use. Therefore, a new technical scheme is urgently needed to solve the problem of large volume of the frequency converter in the prior art.
Disclosure of utility model
The embodiment of the utility model provides a frequency converter and a vacuum pump, and aims to solve the problem of larger volume of the frequency converter caused by a heat dissipation mode in the prior art.
The utility model provides a frequency converter which comprises a chassis, an electric appliance component, a liquid cooling plate and a liquid cooling plate, wherein the chassis is provided with a first mounting opening, the electric appliance component is arranged in the chassis, the liquid cooling plate is arranged outside the chassis and covers the first mounting opening, the electric appliance component is connected with the liquid cooling plate through the mounting opening, and the liquid cooling plate is used for being connected with a liquid cooling pump to conduct liquid cooling heat dissipation on the electric appliance component.
In the frequency converter provided by the utility model, the electrical component comprises a power module and a connecting piece, wherein one surface of the liquid cooling plate facing the first installation opening is an installation base surface, and the power module is installed on the installation base surface through the connecting piece.
The frequency converter provided by the utility model further comprises a first sealing element, wherein the first sealing element is arranged between the liquid cooling plate and the chassis.
In the frequency converter provided by the utility model, the first sealing element is arranged along the edge of the installation opening, the liquid cooling plate and the chassis are pressed to form the first sealing element, and the first sealing element is made of flexible materials.
In the frequency converter provided by the utility model, the electrical component further comprises a driving module, a control module and a capacitance module, wherein the power module, the driving module, the control module and the capacitance module are electrically connected.
In the frequency converter provided by the utility model, the electrical component further comprises a first circuit board and a second circuit board, the first circuit board and the second circuit board are arranged on the inner wall surface of the chassis provided with the first installation opening, the power module is arranged below the first circuit board, the driving module and the control module are arranged above the first circuit board, and the capacitance module is arranged on the second circuit board.
The frequency converter further comprises a box cover, wherein the box is further provided with a second installation opening, and the box cover is covered at the second installation opening of the box.
In the frequency converter provided by the utility model, the second sealing element is arranged between the case cover and the case, the second sealing element is arranged along the edge of the second installation opening, the case cover and the case are pressed with the second sealing element, and the second sealing element is made of flexible materials.
The frequency converter provided by the utility model further comprises a hanging lug, wherein the hanging lug is provided with a through hole, the outer wall of the case is further provided with a blind hole, and the hanging lug is fixed with the case when the through hole is in counterpoint connection with the blind hole through a fastener.
In a second aspect, the utility model provides a vacuum pump comprising the frequency converter.
Compared with the prior art, the utility model has the beneficial effects that:
According to the technical scheme, the first mounting opening is formed in the chassis of the frequency converter, the electrical components arranged in the chassis and the liquid cooling plate covered on the mounting opening are connected through the first mounting opening, and the heat dissipation of the electrical components is realized through the liquid cooling plate, so that the parts for air cooling and heat dissipation are omitted, the occupation of the internal space of the frequency converter is reduced, the size of the frequency converter is reduced, the frequency converter is easier to arrange, in addition, the heat dissipation of the liquid cooling plate is realized, the chassis does not need to be provided with fan holes and heat dissipation holes, and therefore the protection level of the chassis can be set higher, and the application requirements of multiple scenes are met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a first exploded view of a frequency converter according to an embodiment of the present utility model;
FIG. 2 is a second exploded view of the frequency converter according to the embodiment of the present utility model;
FIG. 3 is an assembled schematic diagram of a liquid cooling plate and a power module of a frequency converter according to an embodiment of the present utility model;
FIG. 4 is a top view of an embodiment of the present utility model without a cover;
FIG. 5 is a schematic diagram of a first explosion of an electrical component of a frequency converter according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram of a second explosion of an electrical component of a frequency converter according to an embodiment of the present utility model;
FIG. 7 is a schematic diagram illustrating a complete assembly of a frequency converter according to an embodiment of the present utility model;
FIG. 8 is a schematic diagram illustrating a complete assembly of a frequency converter according to an embodiment of the present utility model;
FIG. 9 is an enlarged view of a portion of the electrical component of the frequency converter of the present utility model at A in a first exploded view;
the icon illustrates:
1. The machine comprises a machine case, a first mounting opening, 12, a stud, 131, an upper hanging lug, 132, a lower hanging lug, 133, hanging lug screws, 134, a through hole, 135 and a blind hole;
2. Cover 21, locating hole 221, locking screw 222, gasket 23, indicator lamp 24, observation hole 25, second sealing element;
3. A liquid cooling plate; 311, a liquid inlet hole, 312, a liquid outlet hole, 32, a connecting piece, 33, a first sealing piece and 34, and a mounting base surface;
4. an electrical component; 41, a power module, 42, a driving module, 43, a control module, 44, and a capacitance module;
5. The circuit comprises a first circuit board, a second circuit board and an external terminal group.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present utility model) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.
Referring to fig. 1 to 8, the utility model provides a frequency converter for solving the problem of larger volume of the frequency converter in the prior art, which comprises a chassis 1, an electric appliance component 4 and a liquid cooling plate 3, wherein the chassis 1 is provided with a first mounting opening 11, the first mounting opening 11 is communicated with the inside and the outside of the chassis 1, the electric appliance component 4 is arranged in the chassis 1, the liquid cooling plate 3 is arranged outside the chassis 1, the liquid cooling plate 3 covers the first mounting opening 11, the electric appliance component 4 is connected with the liquid cooling plate 3 through the first mounting opening 11, and the liquid cooling plate 3 is used for being connected with a liquid cooling pump to conduct liquid cooling heat dissipation on the electric appliance component 4. In general, in order to isolate the electrical component 4 in the frequency converter from the environment, a casing 1 is provided for the frequency converter as a housing, which serves as a protective structure for supporting the electrical component 4 of the frequency converter. A first mounting opening 11 is provided in the cabinet 1, the purpose of which first mounting opening 11 is to provide an interface for direct connection of the electrical component 4 to an external liquid cooling system. The liquid cooling plate 3 is arranged outside the case 1 and covers the first mounting opening 11, heat exchange between the inside and the outside of the case 1 is realized through the liquid cooling plate 3, the electric appliance component 4 is connected with the liquid cooling plate 3 through the first mounting opening 11, and rapid heat conduction between the electric appliance component and the liquid cooling plate 3 is realized under the condition of direct contact. The liquid cooling plate 3 is connected with a liquid cooling pump, and the liquid cooling pump continuously circulates cooling liquid to realize rapid heat dissipation.
Compared with the prior art, in the technical scheme of the utility model, the first mounting opening 11 for communicating the inside and the outside is formed in the case 1 of the frequency converter, and the electric appliance component 4 arranged in the case 1 and the liquid cooling plate 3 covered on the first mounting opening 11 are connected through the first mounting opening 11, so that the volume of the frequency converter is reduced, and the frequency converter is easier to be arranged.
Further, referring to fig. 3, in order to facilitate the transportation of the inverter product and to arrange it according to the specific use, the liquid cooling plate 3 is provided with a duct docking hole for mounting in and out the cooling liquid. The conduit butt joint Kong Juti refers to the liquid inlet hole 311 and the liquid outlet hole 312, the edges of the holes are provided with internal threads or quick bayonets, and the conduit can be detached from the liquid inlet hole 311 and the liquid outlet hole 312 in the product transportation process, so that the structure of the liquid cooling assembly is separated, the transportation is convenient, and the assembly is only needed when the assembly is used. In order to further improve the heat exchange efficiency of the liquid cooling plate 3, the liquid cooling plate 3 has a plurality of fluid channels, which are not shown in the drawing, wherein the plurality of fluid channels are divided into a plurality of sub-channels after the liquid cooling medium enters the liquid inlet 311, and each sub-channel is uniformly arranged in the liquid cooling plate 3, so that the heat dissipation of the liquid cooling plate 3 is more uniform, and the liquid cooling medium is converged before flowing out of the liquid outlet 312, so as to be convenient for butting the conduits, thereby reducing the complexity of the liquid cooling circulation structure.
Further, in order to further enhance the heat dissipation capability of the inverter, the chassis 1 is made of a material having high heat conduction efficiency, for example, metal aluminum. The metal aluminum is convenient to machine, has excellent heat radiation capability and strong corrosion resistance, and can enable the liquid cooling plate 3 of the frequency converter to have longer service life in a complex use environment.
In an embodiment, referring to fig. 1 and 2, the electrical component 4 includes a power module 41 and a connecting member 32, and a surface of the liquid cooling plate 3 facing the first mounting opening 11 is a mounting base surface 34, and the power module 41 is mounted on the mounting base surface 34 through the connecting member 32. The power module 41 is a component module that mainly generates heat in the electric component 4 of the inverter, and the power module 41 and the liquid cooling plate 3 are connected by a connector 32 with a surface of the liquid cooling plate 3 that is close to the chassis 1 as a mounting base 34. In order to make the connection between the power module 41 and the liquid cooling plate 3 more stable, the locking and butt joint are performed by using bolts and screw holes, so that the power module 41 and the liquid cooling plate 3 are firmly attached. The power module 41 is directly mounted on the mounting base surface 34 of the liquid cooling plate 3 through the connecting piece 32 to form stable physical contact, compared with the prior art, the heat conduction path is optimized, and the liquid cooling plate 3 is helped to effectively carry away the heat of the power module 41.
Further, in order to further enhance the heat conduction efficiency between the power module 41 and the liquid cooling plate 3, a gel-like or grease-like heat conductive agent, such as a heat conductive silicone grease, is further provided between the power module 41 and the liquid cooling plate 3. By the heat-conducting silicone grease, the gas area between the power module 41 and the liquid cooling plate 3 due to the roughness of the contact surface is filled, so that the heat conduction efficiency between the power module 41 and the liquid cooling plate is further improved, and the frequency converter can have higher working load.
In an embodiment, referring to fig. 2, the frequency converter of the present utility model further includes a first sealing member 33, where the first sealing member 33 is disposed between the liquid cooling plate 3 and the chassis 1. In order to provide the enclosure 1 of the frequency converter with sufficient tightness, so that the frequency converter can be adapted to some special situations, such as an outdoor environment without a ceiling or an environment with high humidity, a first sealing member 33 needs to be provided between the liquid cooling plate 3 and the enclosure 1. The first sealing member 33 can prevent liquid leakage and external contaminants from entering the inside of the cabinet 1, enhance the safety of the inverter, and ensure the stability and reliability thereof under various working environments.
Further, referring to fig. 2, the first sealing member 33 is disposed along the edge of the mounting opening 11, and the liquid cooling plate 3 and the chassis 1 press-fit the first sealing member 33, and the first sealing member 33 is made of a flexible material. The first sealing member 33 is made of a flexible material, can adapt to micro deformation generated in the installation process, provides a better sealing effect, can keep good sealing performance under different temperature and pressure conditions, and improves the overall reliability of the frequency converter. Meanwhile, the first sealing member 33 also plays a certain role in damping between the liquid cooling plate 3 and the case 1, so that the frequency converter can be more durable in an environment with certain vibration. The tight press fit between the liquid cooling plate 3 and the cabinet 1 makes the first sealing member 33 effectively isolate the internal and external environments from liquid leakage and invasion of external pollutants.
In an embodiment, referring to fig. 4 and 5, the electrical component 4 further includes a driving module 42, a control module 43, and a capacitance module 44, and the power module 41, the driving module 42, the control module 43, and the capacitance module 44 are electrically connected. The drive module 42 is generally referred to as a drive board, which enables precise control of the external load by adjusting the frequency and voltage output to the external load so that it remains stable under different loads and operating conditions. The control module 43 is generally referred to as a control board, and the control module 43 receives command signals such as start, stop, speed setting, steering, etc. from a user or an external control system and converts them into control operations for the drive module 42 and the external load. The capacitor module 44 is generally referred to as a capacitor plate, and is used to smooth the dc voltage output from the inverter, reduce voltage fluctuations, and ensure stable voltage supplied to an external load, thereby improving the operation performance of the external load connected to the inverter. The power module 41, the driving module 42, the control module 43 and the capacitor module 44 are electrically connected, so that electric energy and signals can be effectively transmitted between the modules, and coordination work is realized. Through the modularized design, the frequency converter has higher flexibility and expandability, the cooperation among the modules optimizes the performance of the frequency converter, the response speed and the stability are improved, and meanwhile, the frequency converter is convenient to maintain.
In an embodiment, referring to fig. 4 to 6, the electrical component 4 further includes a first circuit board 5 and a second circuit board 6, the first circuit board 5 and the second circuit board 6 are disposed on an inner wall surface of the chassis 1 with the mounting opening 11, wherein the first circuit board 5 and the second circuit board 6 are disposed side by side, the power module 41 is disposed below the first circuit board 5, the driving module 42 and the control module 43 are disposed above the first circuit board 5, and the capacitor module 44 is disposed on the second circuit board 6. The first circuit board 5 serves as the main circuit carrier, under which the power module 41 is arranged, and the drive module 42 and the control module 43 are arranged above the first circuit board 5, and the second circuit board 6 is independent of the first circuit board 5 and is dedicated to accommodating the capacitance module 44. The modules are connected and fixed with the first circuit board 5 and the second circuit board 6 through studs 12 and screws. The power module 41 is disposed below the first circuit board 5, which helps to optimize heat dissipation, so that it is easier to contact with the liquid cooling plate 3 to obtain a good cooling effect. The driving module 42 and the control module 43 are disposed above the first circuit board 5, so as to facilitate maintenance and assembly connection and signal transmission. The power module 41, the driving module 42 and the control module 43 are respectively arranged on the upper surface and the lower surface of the first circuit board 5, or the driving module 42 is arranged on the first circuit board 5, the control module 43 is installed by additionally arranging a third circuit board, wherein the third circuit board is arranged on the first circuit board 5, the capacitor module 44 is arranged on the second circuit board 6, and the capacitor module 44 is independently separated from other modules, so that mutual interference is reduced. In addition, because the driving module 42 and the capacitance module 44 are arranged side by side and are electric devices with larger heating value in the frequency converter, the driving module 42 and the capacitance module 44 can be simultaneously close to the liquid cooling plate 3 at the bottom of the frequency converter, heat can be quickly transferred to the liquid cooling plate through the frequency converter, the internal heat dissipation requirement of the frequency converter is met, the case does not need to be provided with a fan hole and a heat dissipation hole, so that the protection level of the case can be set higher, and meanwhile, the heat dissipation air duct is not required to be arranged in the case, so that the volume of the frequency converter can be reduced, the cost is reduced, and the application requirements of multiple scenes are met.
In an embodiment, referring to fig. 1, 2, and 4 to 6, in order to enable the frequency converter to maintain tightness and enable the internal electrical component 4 to be connected and data interacted with external equipment, an external terminal group 7 is further provided on the outer wall of the chassis 1.
In an embodiment, referring to fig. 1 and 2, the frequency converter of the present utility model further includes a case cover 2, where the case 1 is opened upward and a second mounting opening is provided, and the case cover 2 covers the second mounting opening of the case 1. The upper part of the case 1 is opened, the stud 12 is fixed on the periphery of the second installation opening, the case cover 2 is provided with a positioning hole 21, when the case cover 2 is placed at the opening of the case 1, the positioning hole 21 on the case cover 2 is aligned with a screw hole on the stud 12, and the alignment installation of the case cover 2 and the case 1 can be realized by locking the stud 12 through the locking screw 221. The upper opening of the machine box 1 is covered by the box cover 2, so that protection and isolation are provided, the influence of the external environment on the internal components is prevented, and the safety of the frequency converter is enhanced. In order to further enhance the waterproof capability of the frequency converter in the actual use process, a gasket 222 is arranged between the locking screw 221 and the positioning hole 21, and the gap between the head of the locking screw 221 and the positioning hole 21 is closed by the gasket 222 with elasticity, so that the aim of sealing and waterproof is fulfilled.
Further, referring to fig. 2, a second seal 25 is provided between the cover 2 and the cabinet 1. The second sealing member 25 is arranged between the case cover 2 and the case 1, the second sealing member 25 is arranged along the edge of the second mounting opening, and the case cover 2 and the case 1 are pressed together to form a sealing structure, so that the sealing performance of the whole case body is enhanced. The second sealing member 25 effectively prevents invasion of moisture, dust and other pollutants, protects the internal electrical components 4 and the circuit board, and ensures reliability and stability of the frequency converter in various environments. The second sealing member 25 is made of flexible or elastic material, and can adapt to the tiny displacement between the case cover 2 and the case 1, so that a good sealing effect is maintained. The second sealing member 25 has a circular or oval interface, and can have a better gap-closing effect by the backlog between the cover 2 and the cabinet 1. By adding the second sealing member 25 between the case cover 2 and the case 1, not only the protection capability of the equipment is enhanced, but also the durability of the frequency converter is improved, the service life and the performance stability of the frequency converter are further enhanced, and the normal operation of the frequency converter under various working conditions is ensured.
In an embodiment, referring to fig. 2, 4 to 6 and 9, the frequency converter of the present utility model further includes a hanging lug, the hanging lug is provided with a through hole 134, a blind hole 135 is further provided on an outer wall of the chassis 1, and the hanging lug is fixed with the chassis 1 when the through hole 134 is aligned with the blind hole 135 by a fastener. So-called lugs are used to provide a means of fixing or mounting the frequency converter for ease of installation. In actual use, the user can change the kind of hangers as required and satisfy the installation demand, for example uses and goes up hangers 131 and lower hangers 132, goes up hangers 131 and has the water droplet shape hole, and lower hangers 132 have the U-shaped slotted hole, is convenient for hang the converter on locating the screw in the installation environment, has removed the operation of punching and afferent screw again from. The outer wall of the case 1 is provided with a blind hole 135, the hanging lugs are provided with through holes 134, the through holes 134 correspond to the blind holes 135, and the through holes are connected through hanging lug screws 133. By providing the blind hole 135 on the chassis 1 to ensure the tightness of the chassis 1, intrusion of moisture, dust and other pollutants is prevented, the internal electrical components 4 and the circuit board are protected, and reliability and stability of the frequency converter under various environments are ensured.
In an embodiment, referring to fig. 1, an indicator lamp 23 and an observation hole 24 are further provided on the case cover 2 for monitoring the working state and the internal condition of the frequency converter, so that a user can conveniently and quickly overhaul.
The utility model also provides a vacuum pump which comprises the frequency converter in the embodiment. Compared with the prior art, the vacuum pump disclosed by the utility model is beneficial to saving space, reducing the whole volume of equipment and facilitating installation and maintenance. Meanwhile, the vacuum pump can keep a good working state in various environments, and prevent dust and moisture from entering.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422462162.9U CN223309746U (en) | 2024-10-11 | 2024-10-11 | Frequency converter and vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422462162.9U CN223309746U (en) | 2024-10-11 | 2024-10-11 | Frequency converter and vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223309746U true CN223309746U (en) | 2025-09-05 |
Family
ID=96911184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422462162.9U Active CN223309746U (en) | 2024-10-11 | 2024-10-11 | Frequency converter and vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223309746U (en) |
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2024
- 2024-10-11 CN CN202422462162.9U patent/CN223309746U/en active Active
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