A card-in frequency converter cabinet

Abstract

The utility model provides a kind of card frequency converter case, including box, fan assembly, slide way component and multiple function modules, the front side bottom of box is equipped with air inlet, the rear side top of box is equipped with air outlet, fan assembly is set to the bottom in box and is communicated with air inlet, slide way component is installed in box, slide way component has multiple accommodation cavities, the rear side of box is equipped with the installation port being located below air outlet and being communicated with accommodation cavity, each function module is inserted and assembled in corresponding accommodation cavity by installation port, airflow driven by fan assembly flows out from air outlet after passing multiple accommodation cavities. Function module can be installed in the accommodation cavity of slide way component by plug-in mode, external air can enter from the air inlet of the front side bottom of box, flow out from the air outlet of the rear side top of box after passing accommodation cavity, can remove heat generated by each plug-in function module under the premise of guaranteeing that each function module is inserted and assembled conveniently, realize heat dissipation, guarantee work reliability.

Description

Technical Field

[0001] This utility model belongs to the field of chassis technology, and in particular relates to a card-insertion frequency converter chassis. Background Technology

[0002] A frequency converter is a power control device that uses frequency conversion technology and microelectronics to control an AC motor by changing the frequency of the power supply to the motor. It typically includes a housing, main control board, fan board, power supply board, radio frequency board, and crystal oscillator board.

[0003] In related technologies, only some of the main modules of frequency converters can be plugged in and out, and the heat dissipation function of each main module cannot be effectively realized, resulting in inconvenient maintenance and poor reliability. Utility Model Content

[0004] The technical objective of this utility model is to provide a card-insertion inverter chassis, which aims to solve at least one technical problem of inverter chassis in the related technologies mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a card-insert frequency converter chassis, including a chassis, a fan assembly, a slide rail assembly, and multiple functional modules. The bottom front side of the chassis has an air inlet, and the top rear side of the chassis has an air outlet. The fan assembly is located at the bottom of the chassis and communicates with the air inlet. The slide rail assembly is installed in the chassis and has multiple receiving cavities. The rear side of the chassis has a mounting port located below the air outlet and communicating with the receiving cavities. Each functional module is inserted and assembled into its corresponding receiving cavity through the mounting port. The airflow driven by the fan assembly flows out from the air outlet after passing through the multiple receiving cavities.

[0006] Furthermore, the housing of each functional module has ventilation holes, the plug-in end has positioning holes that match the corresponding receiving cavity, and the outer end is provided with a locking member that can be detachably connected to the box body.

[0007] Furthermore, the functional module has rows of rollers on its periphery near the outer end, which are used to roll against the wall of the corresponding receiving cavity.

[0008] Furthermore, the functional modules include a crystal oscillator module, a main control module, and a power supply module. Each of the functional modules is spaced apart on at least two layers, with the power supply module located on the bottom layer. The airflow driven by the fan assembly passes at least partially through the power supply module and the remaining functional modules in sequence.

[0009] Furthermore, the slide assembly includes a riveting bracket fixed to the housing, a power slide with one end fixed to the riveting bracket, and a crystal oscillator slide and a main control slide fixed to the housing and located above the power slide. The power slide, the main control slide, and the crystal oscillator slide are all provided with ventilation holes, and the air outlet of the fan assembly is at least partially connected to the power slide.

[0010] Furthermore, the housing is provided with a partition to divide its interior into a front cavity and a rear cavity, and the top sides of the front cavity and the rear cavity are connected; the length of the power supply slide is longer than the length of the main control slide and the crystal oscillator slide, the power supply slide passes through the front cavity, and the main control slide and the crystal oscillator slide are both located in the rear cavity; part of the vent of the power supply slide is located in the front cavity, and the other part is located in the rear cavity.

[0011] Furthermore, the card-insertion inverter chassis also includes an air duct installed at the bottom of the chassis, the air duct connecting the air outlet of the fan assembly and the bottom of the rear cavity, and the airflow of the air duct passing through the main control slide and the crystal oscillator slide.

[0012] Furthermore, the slide assembly also includes a suspension fixed to the partition, and the main control slide and the crystal oscillator slide are installed above the power supply slide at intervals via the suspension. The suspension is hollow and spaced apart from the power supply slide.

[0013] Furthermore, the fan assembly is detachably plugged into the front side of the housing. The fan assembly includes a housing and multiple sets of exhaust mechanisms. The housing contains at least four fans and an exhaust duct connecting the fans and the air inlet. The housing has an air outlet.

[0014] Furthermore, a row of alarm indicator lights is provided above the air inlet on the front side of the enclosure.

[0015] Compared with the prior art, the advantages of this new type of card-insertion frequency converter chassis are as follows:

[0016] In this design, multiple functional modules can be installed in the receiving cavity of the slide assembly via plug-in connection. Installation is convenient and quick. Driven by the fan assembly, external air enters through the air inlet at the bottom front of the housing, passes through the fan assembly, reaches the bottom of the slide assembly, flows upwards, passes through the receiving cavity, and exits through the air outlet at the top rear of the housing. This design ensures convenient plug-in connection of each functional module while also dissipating heat generated by these modules, achieving heat dissipation and guaranteeing operational reliability. Attached Figure Description

[0017] The accompanying drawings show only the necessary parts; the circuit components inside the chassis and the circuit components in the functional modules are not shown.

[0018] Figure 1 This is a first-view overall structural schematic diagram of the card-insertion frequency converter chassis in an embodiment of this utility model;

[0019] Figure 2 This is a second-view overall structural schematic diagram of the card-insertion inverter chassis in an embodiment of this utility model;

[0020] Figure 3 This is a partial structural diagram of the card-insertion inverter chassis with the top cover hidden in this embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the layout of the functional modules and fan assembly inside the card-insertion inverter chassis in this embodiment of the utility model, wherein the top side of the fan assembly is hidden;

[0022] Figure 5 This is a schematic diagram of the structure and layout of the functional modules in the embodiment of this utility model.

[0023] In the attached drawings, the reference numerals represent: 1. Housing; 11. Air inlet; 12. Air outlet; 13. Partition; 2. Fan assembly; 21. Outer shell; 22. Exhaust mechanism; 3. Slide assembly; 31. Riveted bracket; 32. Suspension; 33. Power supply slide; 34. Crystal oscillator slide; 35. Main control slide; 4. Functional module; 41. Crystal oscillator module; 42. Main control module; 43. Power supply module; 5. Air duct. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this embodiment, combined with Figure 1-5 A card-insertion frequency converter chassis is provided, including a chassis 1, a fan assembly 2, a slide rail assembly 3, and multiple functional modules 4. The bottom front side of the chassis 1 is provided with an air inlet 11, and the top rear side of the chassis 1 is provided with an air outlet 12. The fan assembly 2 is located at the bottom inside the chassis 1 and communicates with the air inlet 11. The slide rail assembly 3 is installed inside the chassis 1 and has multiple receiving cavities. The rear side of the chassis 1 is provided with an installation port located below the air outlet 12 and communicating with the receiving cavities. Each functional module 4 is inserted and assembled into the corresponding receiving cavity through the installation port. The airflow driven by the fan assembly 2 flows out from the air outlet 12 after passing through multiple receiving cavities.

[0028] In this design, multiple functional modules 4 can be installed in the receiving cavity of the slide assembly 3 via plug-in connection. Installation is convenient and quick. Driven by the fan assembly 2, external air enters from the air inlet 11 at the bottom front of the housing 1, passes through the fan assembly 2, reaches the bottom of the slide assembly 3, flows upwards, passes through the receiving cavity, and exits from the air outlet 12 at the top rear of the housing 1. This ensures convenient plug-in connection of each functional module 4 while also dissipating the heat generated by the plugged-in modules, achieving heat dissipation and ensuring operational reliability.

[0029] In this embodiment, the box body 1 has a length, width, and height of 570mm, 482.6mm, and 221mm, respectively. It has handles on both the front and rear sides, and its length including the handles is 630mm. It includes upper and lower covers and a box frame located in the middle, which can be fixed together by screws or riveting.

[0030] Furthermore, each functional module 4 has a vent hole in its housing, a positioning hole at the insertion end that matches the corresponding receiving cavity, and a locking element at the outer end that is detachably connected to the housing 1. Specifically, the end of the receiving cavity may have a positioning post. When the functional module 4 is inserted into the receiving cavity, the positioning post and the positioning hole match to ensure accurate insertion of the functional module 4, allowing the corresponding interface of the functional module 4 to connect with the circuit inside the housing 1. The locking element can be an adjusting screw. After insertion, the locking element and the housing 1 are locked together to ensure stable insertion of the functional module 4. Of course, when disassembly is required, simply loosen the locking element to pull out the functional module 4. To facilitate the placement, insertion, and removal of the functional module 4, a handle is provided on the outside of the functional module 4.

[0031] Furthermore, the functional module 4 has rows of rollers on its periphery near its outer end. These rollers are used to roll against the walls of the corresponding receiving cavities. Specifically, rollers are provided on the left, right, and top sides of the functional module 4, and these rollers protrude from the walls of the functional module 4. During the process of fully inserting the functional module 4 into the receiving cavity, the rollers and the receiving cavity avoid rolling contact, which can provide guidance and reduce friction. After the functional module 4 is inserted, the rollers can also act as a limiting structure to prevent the functional module 4 from loosening. Moreover, when it is necessary to remove the functional module 4, the rollers reduce the friction during removal, making it easier and less strenuous.

[0032] Furthermore, functional module 4 includes a crystal oscillator module 41, a main control module 42, and a power supply module 43. These functional modules 4 are spaced apart on at least two layers, with the power supply module 43 located on the bottom layer. The airflow driven by the fan assembly 2 passes at least partially through the power supply module 43 and the remaining functional modules 4 sequentially. This airflow passing through the power supply module 43 first and then through the remaining functional modules 4 improves airflow utilization, reduces size, facilitates heat dissipation for each functional module 4, and ensures the reliable operation of the frequency converter.

[0033] Specifically, in this embodiment, the crystal oscillator module 41, the main control module 42, and the power supply module 43 are each provided in two sets. This eliminates the need for power outages during replacement, allowing for quick maintenance and replacement, significantly reducing maintenance time and costs. The two power supply modules 43 are located at the bottom, at the same height as the fan assembly 2. The crystal oscillator module 41 and the main control module 42 are located on the second layer, with identical modules arranged side-by-side. The inverter's connection interface is located above the crystal oscillator module 41 and the main control module 42. Understandably, in some embodiments, the functional module 4 can also be a module with other functions. In some embodiments, the functional modules 4 can be arranged in three or four layers, etc., adaptable to actual conditions. Furthermore, the number of identical functional modules 4 can also be set according to actual conditions, such as one, two, three, four, etc., preferably with identical functional modules 4 arranged adjacent to each other.

[0034] Furthermore, the slide assembly 3 includes a riveting bracket 31 fixed inside the housing 1, a power slide 33 with one end fixed to the riveting bracket 31, and a crystal oscillator slide 34 and a main control slide 35 fixed to the housing 1 and located above the power slide 33. The power slide 33, main control slide 35, and crystal oscillator slide 34 are all provided with ventilation holes. The air outlet of the fan assembly 2 is at least partially connected to the power slide 33. The riveting bracket 31 can be used to fix the internal functional components of the inverter box. The power slide 33 is used to insert and assemble the power module 43, the crystal oscillator slide 34 is used to insert and assemble the crystal oscillator module 41, and the main control slide 35 is used to insert and assemble the main control module 42. Air drawn in from the outside by the fan assembly 2 passes through the power slide 33 to dissipate heat from the power module 43, and then flows out through the ventilation holes of the power slide 33 before flowing into the crystal oscillator slide 34 and the main control slide 35, thereby achieving heat dissipation for the crystal oscillator module 41 and the main control module 42.

[0035] Furthermore, the housing 1 is provided with a partition 13 to divide its interior into a front cavity and a rear cavity, and the top sides of the front cavity and the rear cavity are connected; the power supply slide 33 is longer than the main control slide 35 and the crystal oscillator slide 34. The power supply slide 33 passes through the front cavity, and the main control slide 35 and the crystal oscillator slide 34 are both located in the rear cavity. Part of the vent of the power supply slide 33 is located in the front cavity, and the other part is located in the rear cavity. This configuration allows the airflow through the power supply slide 33 to be divided into two parts. One part flows from bottom to top through the front cavity and then into the top side of the rear cavity before exiting through the outlet 12. The other part flows from bottom to top through the rear cavity, through the crystal oscillator slide 34 and the main control slide 35, before exiting through the outlet 12. This achieves heat dissipation for the circuit components in the front cavity and the circuit modules in the rear cavity. The partition 13 divides the interior of the housing 1 into two separate cavities, which can suppress heat exchange between the two cavities and facilitate thermal management within the housing 1. Moreover, the airflow is divided into two paths, simultaneously achieving heat dissipation for both the front and rear cavities. In practical applications, lower-heat-generating electronic components can be placed in the front cavity, and higher-heat-generating electronic components can be placed in the rear cavity. In this way, the airflow passing through the front cavity can also absorb heat in the rear cavity, fully improving the airflow heat exchange efficiency and ensuring the operational reliability of the housing 1.

[0036] Furthermore, the card-insert inverter chassis also includes an air duct 5 installed at the bottom of the chassis 1. The air duct 5 connects the air outlet of the fan assembly 2 and the bottom of the rear cavity. The airflow in the air duct 5 passes through the main control slide 35 and the crystal oscillator slide 34. Specifically, the slide assembly 3 also includes a suspension 32 fixed to the partition 13. The main control slide 35 and the crystal oscillator slide 34 are installed above the power supply slide at intervals via the suspension 32. The suspension 32 is hollow and spaced apart from the power supply slide. The fan assembly 2 directly transmits a portion of the cooler airflow through the air duct 5, then into the rear cavity, flowing from bottom to top, passing over the power supply slide rail, then through the crystal oscillator slide rail 34 and the main control slide rail 35, and finally exiting through the air outlet 12. This prevents the remaining airflow from being too hot and having poor heat dissipation when it passes through the crystal oscillator slide rail 34 and the main control slide rail 35. By directly introducing fresh airflow into the rear cavity through the air duct 5 to dissipate heat from the circuit components inside, the heat dissipation effect is better, which can make its operation more reliable.

[0037] The fan assembly 2 is detachably plugged into the front of the housing 1. The fan assembly 2 includes a housing 21 and multiple exhaust mechanisms 22. The housing 21 contains at least four fans and an exhaust duct 5 connecting the fans and the air inlet 11. The housing 21 has an air outlet. The fans and exhaust ducts 5 together constitute the exhaust mechanism 22. Specifically, in this embodiment, the housing 21 contains four fans (BFB0712HD) and two fans (BFB0512LD), thus improving air intake efficiency. The airflow from the fan assembly 2 can pass through the power supply slide and the air duct 5, allowing it to absorb heat in the front cavity and then flow to the rear cavity for further heat absorption, or directly enter the rear cavity from the air duct 5 for heat absorption. The fan assembly 2 also functions as a plug-in module, allowing for detachable plug-in assembly from the front of the housing 1. Thus, all functional modules 4 in this solution are pluggable, making maintenance convenient and quick, and installation more efficient.

[0038] Above the air inlet on the front side of the enclosure 1, there is a row of alarm indicator lights, which can be used for temperature alarms, fault alarms, etc.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A card cage for a card converter, characterized by, The device includes a housing, a fan assembly, a slide assembly, and multiple functional modules. The front bottom of the housing has an air inlet, and the rear top of the housing has an air outlet. The fan assembly is located at the bottom of the housing and communicates with the air inlet. The slide assembly is installed in the housing and has multiple receiving cavities. The rear side of the housing has a mounting port located below the air outlet and communicating with the receiving cavities. Each functional module is inserted and assembled into its corresponding receiving cavity through the mounting port. The airflow driven by the fan assembly flows out from the air outlet after passing through the multiple receiving cavities.

2. The card cage frequency converter chassis of claim 1, wherein, Each of the functional modules has a housing with ventilation holes, a plug-in end with a positioning hole that matches the corresponding receiving cavity, and an outer end with a locking element that can be detachably connected to the housing.

3. The card cage frequency converter chassis of claim 2, wherein, The functional module has rows of rollers on its periphery near the outer end, and the rollers are used to roll and abut against the wall of the corresponding receiving cavity.

4. The card cage frequency converter chassis of claim 1, wherein, The functional modules include a crystal oscillator module, a main control module, and a power supply module. Each of the functional modules is spaced apart on at least two layers, with the power supply module located on the bottom layer. The airflow driven by the fan assembly passes at least partly through the power supply module and the remaining functional modules in sequence.

5. The card cage frequency converter chassis of claim 4, wherein, The slide assembly includes a riveting bracket fixed to the housing, a power slide with one end fixed to the riveting bracket, and a crystal oscillator slide and a main control slide fixed to the housing and located above the power slide. The power slide, the main control slide, and the crystal oscillator slide are all provided with ventilation holes. The air outlet of the fan assembly is at least partially connected to the power slide.

6. The card cage frequency converter chassis of claim 5, wherein, The housing is divided into a front cavity and a rear cavity by a partition, and the top sides of the front cavity and the rear cavity are connected. The power supply slide is longer than the main control slide and the crystal oscillator slide. The power supply slide passes through the front cavity. The main control slide and the crystal oscillator slide are both located in the rear cavity. The vent of the power supply slide is partly located in the front cavity and partly located in the rear cavity.

7. The card cage frequency converter chassis of claim 6, wherein, The card-insertion inverter chassis also includes an air duct installed at the bottom of the chassis, the air duct connecting the air outlet of the fan assembly and the bottom of the rear cavity, and the airflow of the air duct passing through the main control slide and the crystal oscillator slide.

8. The card cage frequency converter chassis of claim 7, wherein, The slide rail assembly also includes a suspension fixed to the partition plate. The main control slide rail and the crystal oscillator slide rail are installed above the power supply slide rail at intervals via the suspension. The suspension is hollow and spaced apart from the power supply slide rail.

9. The card cage frequency converter chassis of claim 6, wherein, The fan assembly is detachably plugged into the front side of the housing and includes a housing and multiple sets of exhaust mechanisms. The housing contains at least four fans and an exhaust duct connecting the fans and the air inlet. The housing has an air outlet.

10. The card cage frequency converter of any of claims 1-9, wherein, A row of alarm indicator lights is also provided above the air inlet on the front side of the enclosure.

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