Variable frequency voltage device

Abstract

The utility model relates to the technical field of frequency converter, and disclose a kind of frequency voltage ware, including shell body and frequency voltage ware main body: the inside of the shell body is provided with frequency voltage ware main body;The inside of the shell body is equipped with fixed block in the middle position of both ends of side edge, the inside of the fixed block is equipped with sliding slot, the inside of the sliding slot is equipped with limit rod, the outer surface of the limit rod is sleeved with spring, the outer surface of the limit rod is movably connected with L-shaped connecting block, and the end portion of the L-shaped connecting block connected with limit rod is slidably connected with the inside of sliding slot.This kind of frequency voltage ware, can be protected to frequency voltage ware main body when wall-mounted, the louver set on shell body can guarantee the normal heat dissipation of frequency voltage ware main body when working, and when replacing and repairing frequency voltage ware main body, it is more convenient to operate, and the slot set on shell body can facilitate wiring use to frequency voltage ware main body.

Description

Technical Field

[0001] This utility model relates to the field of frequency converter technology, specifically to a frequency converter voltage converter. Background Technology

[0002] Variable frequency drives (VFDs) are devices used to regulate the frequency of output voltage. They are commonly used in the field of power electronics, especially in scenarios such as motor drives and new energy conversion.

[0003] Depending on the application scenario, existing frequency converters are typically installed in cabinet, wall-mounted, rack-mounted, or embedded configurations. Wall-mounted installations, which use expansion bolts to directly mount the device to the wall, result in the device being directly exposed to the environment without protection, making it susceptible to damage from external factors. Furthermore, excessive dust and other debris in the environment can affect the normal operation of the device. Additionally, replacement and disassembly require multiple removals of the expansion bolts, which not only damages the wall but also affects the stability of subsequent installations.

[0004] Therefore, it is necessary to propose a frequency converter. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a frequency converter that effectively protects the frequency converter, saves the steps of disassembling expansion bolts, ensures the stability of the frequency converter installation, and solves the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a frequency converter, comprising a housing and a frequency converter body: The main body of the frequency converter is installed inside the outer casing; A fixing block is installed at the middle of both ends of the inner side of the outer casing. The fixing block has a sliding groove inside, and a limit rod is installed inside the sliding groove. A spring is sleeved on the outer surface of the limit rod, and an L-shaped connecting block is movably connected to the outer surface of the limit rod. The end of the L-shaped connecting block connected to the limit rod is slidably connected to the inside of the sliding groove. A U-shaped clamping plate is fixedly connected to the other end of the L-shaped connecting block. The side of the U-shaped clamping plate is attached to the outer surface of the inverter body, and the end of the U-shaped clamping plate is fastened to the corner of the inverter body.

[0007] Preferably, one end of the limiting rod is fixedly connected to the end of the spring, and the other end of the limiting rod is fixedly connected to the side of the L-shaped connecting block.

[0008] Preferably, the U-shaped card plate has a second slot on its side, and the internal size of the second slot is slightly larger than the external size of the fixing block.

[0009] Preferably, the end of the U-shaped card plate is provided with an arc-shaped surface.

[0010] Preferably, a side door is hinged to the front of the outer casing, and a slot is provided at the bottom of the inner side of the outer casing. The area of ​​the slot is slightly smaller than the bottom area of ​​the inverter body.

[0011] Preferably, the outer casing has side grooves on both sides, and louvers are installed inside the side grooves.

[0012] Preferably, mounting plates are installed on both end corners of the outer casing, and mounting holes are provided on the mounting plates.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This type of frequency converter uses a mounting plate, mounting holes, and external bolts to install the outer casing in the desired position. The main body of the frequency converter is then installed inside the casing via a movable assembly / disassembly method. Specifically, by pushing the U-shaped clamps to both sides, the main body of the frequency converter is placed in the middle of the inner part of the casing and held in place by the elasticity of springs. The ends of the U-shaped clamps hook onto the outer surface of the main body of the frequency converter for fixation, thus completing the installation of the main body of the frequency converter. This structure can protect the main body of the frequency converter when wall-mounted. At the same time, the louvers on the casing can ensure normal heat dissipation of the main body of the frequency converter during operation. Furthermore, the replacement and maintenance of the main body of the frequency converter is more convenient. The slots on the casing facilitate wiring of the main body of the frequency converter. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model; Figure 2 This is a schematic diagram of the internal structure of the outer shell of this utility model; Figure 3 This is a schematic diagram of the U-shaped card plate connection structure of this utility model.

[0016] The attached diagram lists the components represented by each number as follows: 1. Outer shell; 110. Side door; 120. Mounting plate; 121. Mounting hole; 130. Groove one; 140. Side groove; 141. Louver; 2. Main body of the frequency converter; 3. Fixing block; 310. L-shaped connecting block; 320. U-shaped clamping plate; 321. Arc-shaped surface; 322. Groove II; 330. Slide groove; 331. Limiting rod; 332. Spring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 , Figure 2 and Figure 3 A frequency converter includes a housing 1 and a frequency converter body 2. The inverter body 2 is installed inside the outer casing 1; A fixing block 3 is installed at the middle of both ends of the inner side of the outer casing 1. The fixing block 3 has a sliding groove 330 inside. A limit rod 331 is installed inside the sliding groove 330. A spring 332 is sleeved on the outer surface of the limit rod 331. An L-shaped connecting block 310 is movably connected to the outer surface of the limit rod 331. The end of the L-shaped connecting block 310 connected to the limit rod 331 is slidably connected to the inside of the sliding groove 330. A U-shaped clamping plate 320 is fixedly connected to the other end of the L-shaped connecting block 310. The side of the U-shaped clamping plate 320 is attached to the outer surface of the inverter body 2. The end of the U-shaped clamping plate 320 is fastened to the corner of the inverter body 2. One end of the limit rod 331 is fixedly connected to the end of the spring 332. The other end of the limit rod 331 is fixedly connected to the side of the L-shaped connecting block 310.

[0019] When installing the inverter body 2, the U-shaped clamping plate 320 is pushed to both sides to move it. At this time, the inverter body 2 is placed in the middle position inside the outer shell 1 and is clamped by the elastic action of the spring 332. The end of the U-shaped clamping plate 320 is hooked to the outer surface of the inverter body 2 to fix it, thereby completing the installation of the inverter body 2.

[0020] As a preferred technical solution of this utility model, the side of the U-shaped card plate 320 is provided with a slot 322, the internal size of the slot 322 is slightly larger than the external size of the fixing block 3.

[0021] The design of slot 2 322 facilitates the movement of the U-shaped card plate 320.

[0022] As a preferred technical solution of this utility model, the end of the U-shaped card plate 320 is provided with an arc-shaped surface 321.

[0023] With the arc-shaped surface 321, when installing the inverter body 2, you only need to push the inverter body 2 to move inside the outer casing 1, so that the rear side of the inverter body 2 presses against the arc-shaped surface 321 of the U-shaped clamping plate 320, so that the U-shaped clamping plate 320 can move to install the inverter body 2.

[0024] As a preferred technical solution of this utility model, a side door 110 is hinged to the front of the outer shell 1, and a slot 130 is opened at the bottom of the inner side of the outer shell 1. The area of ​​the slot 130 is slightly smaller than the bottom area of ​​the inverter body 2.

[0025] The 130 slot design facilitates wiring of the main body 2 of the frequency converter.

[0026] As a preferred technical solution of this utility model, side grooves 140 are provided on both sides of the outer shell 1, and louvers 141 are installed inside the side grooves 140.

[0027] The louver 141 not only facilitates heat dissipation of the inverter body 2, but also prevents dust and other debris from entering the interior of the housing 1.

[0028] As a preferred technical solution of this utility model, mounting plates 120 are installed on both ends of the outer shell 1, and mounting holes 121 are provided on the mounting plates 120.

[0029] The housing 1 can be installed at the wall-mounted position by using the mounting plate 120, mounting holes 121 and bolts. When replacing or repairing the inverter body 2, only the inverter body 2 needs to be disassembled and reassembled, without replacing the housing 1.

[0030] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A frequency converter, comprising a housing (1) and a frequency converter body (2), characterized in that: The variable frequency voltage converter body (2) is provided inside the outer casing (1); A fixing block (3) is installed at the middle of both ends of the inner side of the outer shell (1). A sliding groove (330) is opened inside the fixing block (3). A limit rod (331) is installed inside the sliding groove (330). A spring (332) is sleeved on the outer surface of the limit rod (331). An L-shaped connecting block (310) is movably connected to the outer surface of the limit rod (331). The end of the L-shaped connecting block (310) connected to the limit rod (331) is slidably connected to the inside of the sliding groove (330). A U-shaped clamping plate (320) is fixedly connected to the other end of the L-shaped connecting block (310). The side of the U-shaped clamping plate (320) is attached to the outer surface of the inverter body (2). The end of the U-shaped clamping plate (320) is fastened to the corner of the inverter body (2).

2. The frequency converter according to claim 1, characterized in that: One end of the limiting rod (331) is fixedly connected to the end of the spring (332), and the other end of the limiting rod (331) is fixedly connected to the side of the L-shaped connecting block (310).

3. A frequency converter according to claim 1, characterized in that: The U-shaped card plate (320) has a slot two (322) on its side, and the internal size of the slot two (322) is slightly larger than the external size of the fixing block (3).

4. A frequency converter according to claim 1, characterized in that: The end of the U-shaped card plate (320) is provided with an arc-shaped surface (321).

5. A frequency converter according to claim 1, characterized in that: The front of the outer casing (1) is hinged with a side door (110), and a slot (130) is provided at the bottom of the interior of the outer casing (1). The area of ​​the slot (130) is slightly smaller than the bottom area of ​​the inverter body (2).

6. A frequency converter according to claim 1, characterized in that: The outer casing (1) has side grooves (140) on both sides, and louvers (141) are installed inside the side grooves (140).

7. A frequency converter according to claim 1, characterized in that: Mounting plates (120) are installed on both ends of the outer casing (1), and mounting holes (121) are provided on the mounting plates (120).

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