A harmonic-free high-voltage frequency converter

Abstract

This utility model relates to the field of high-voltage frequency converter technology and discloses a harmonic-free high-voltage frequency converter, including a housing. A limiting shell is fixedly installed at the front end of the housing, and a support base is embedded at the bottom end of the housing. A control terminal is embedded at the front end of the housing, and the frequency converter body is embedded inside the housing. A limiting mechanism is provided at the bottom inside the housing. The limiting mechanism includes a mounting bracket, which is fixedly installed on one side of the frequency converter body inside the housing, and a threaded rod is fixedly installed inside the mounting bracket. This utility model uses the cooperation of limiting blocks and limiting grooves to separate cables and prevent them from tangling. The cooperation of the threaded rod and the sleeve allows adjustment of the position of the limiting blocks to straighten the corresponding cables, preventing slanted pulling, flying wires, or bending, which can lead to messy cables and even affect signal and energy transmission. This keeps the cables neat and facilitates later maintenance.

Description

Technical Field

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

[0002] An electric coke oven (or coking oven) is a thermal equipment used for high-temperature dry distillation of coal to produce coke and coke oven gas. High-voltage frequency converters are essential equipment because they precisely control the motor drives of key equipment in the electric coke oven, thereby improving the stability and economy of the overall system.

[0003] An existing patent (publication number: CN218642183U) discloses a high-voltage frequency converter that winds the excess part of the wire connected to the main body of the high-voltage frequency converter around the structure formed by two round rods, thereby tidying up the wire and improving the performance. Under the elastic force of the second spring, the plastic pressure plate moves downward and presses the wound wire, effectively reducing the probability of the wound wire loosening and improving the tidying effect.

[0004] To address the aforementioned issues, while existing patents offer solutions that utilize components such as a second spring to clamp the cable and prevent slack, in actual use, the electrical components connected to each cable are located in different positions. If the clamping position is relatively fixed, pulling the cable requires bending and shifting, which may lead to some confusion during connection. Furthermore, bending may affect signal and energy loss. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the electrical components for each cable connection are located in different positions in the existing technology, if the clamping position is relatively fixed, pulling the cable will require bending and offset, which may cause some confusion during connection. At the same time, bending may affect signal and energy loss.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A harmonic-free high-voltage frequency converter includes a housing, a limit shell fixedly installed at the front end of the housing, a support base embedded at the bottom end of the housing, a control terminal embedded at the front end of the housing, and a frequency converter body embedded inside the housing. A limit mechanism is provided at the bottom inside the housing.

[0009] The limiting mechanism includes a mounting bracket, which is fixedly installed on one side of the inverter body inside the housing. A threaded rod is fixedly installed inside the mounting bracket. A sleeve is rotatably connected to the outer wall of the threaded rod, and a locking groove is opened on the outer wall of the sleeve. A limiting block is sleeved outside the locking groove, and a limiting groove is opened at the top of the limiting block. A limiting hole is opened inside the limiting block at the position corresponding to the locking groove.

[0010] As a further improvement of this utility model: an adjusting rod is inserted into one side of the outer wall of the limiting block, and one end of the adjusting rod is rotatably connected to an abutment plate.

[0011] As a further improvement of this utility model: the limiting block forms a rotating structure with the sleeve through the engaging groove, and the structure of the limiting block is a U-shaped structure.

[0012] As a further embodiment of this utility model: the threaded rod is threadedly connected to the sleeve, and a sliding structure is formed between the sleeve and the threaded rod.

[0013] As a further improvement of this utility model: the top of the mounting bracket is provided with a sliding groove, and the inside of the sliding groove is provided with an abutment mechanism.

[0014] As a further embodiment of this utility model: the abutment mechanism includes a sliding plate, which is slidably connected to the top of the mounting frame, and a locking block is fixedly installed on the outer wall of the sliding plate.

[0015] As a further embodiment of this utility model: a fixing cylinder is fixedly installed at the bottom end of the card block, and an abutting rod extends through the inside of the fixing cylinder, and a spring is fixedly installed between the fixing cylinder and the abutting rod.

[0016] As a further improvement of this utility model: a rubber block is fixedly installed at the bottom end of the abutment rod, and a pressing plate is fixedly installed below the rubber block.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model separates cables to prevent them from getting tangled by using a limiting block and a limiting groove. The position of the limiting block can be adjusted by using a threaded rod and a sleeve to straighten the corresponding cable and prevent the cable from being pulled at an angle, flying wire, or bent. This would cause the cable to be mixed up and even affect the transmission of signal and energy, thus keeping the cable neat and making it easier to maintain later.

[0019] 2. This utility model, through the cooperation of the sliding plate and the locking block, can move along with the displacement of the limiting block under the limitation of the mounting frame, and can also press the cable from above by the elastic contraction of the spring, so that the cable is limited in multiple directions and further improves the anti-detachment effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a harmonic-free high-voltage frequency converter.

[0021] Figure 2 A schematic diagram of the internal structure of a harmonic-free high-voltage frequency converter.

[0022] Figure 3 A schematic diagram of a limit block structure for a harmonic-free high-voltage frequency converter;

[0023] Figure 4 A schematic diagram of the contact plate structure of a harmonic-free high-voltage frequency converter;

[0024] Figure 5 This is a schematic diagram of a rubber block structure for a harmonic-free high-voltage frequency converter.

[0025] In the diagram: 1. Outer casing; 2. Limiting shell; 3. Support base; 4. Control terminal; 5. Inverter body; 6. Limiting mechanism; 601. Mounting bracket; 602. Threaded rod; 603. Sleeve; 604. Engaging groove; 605. Limiting block; 606. Limiting groove; 607. Limiting hole; 608. Adjusting rod; 609. Contact plate; 7. Slide groove; 8. Contact mechanism; 801. Sliding plate; 802. Locking block; 803. Fixing cylinder; 804. Contact rod; 805. Spring; 806. Rubber block; 807. Pressing plate. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0029] Example 1:

[0030] Please see Figure 1 - Figure 4 This is the first embodiment of the present utility model.

[0031] This embodiment provides a harmonic-free high-voltage frequency converter, including a housing 1, a limit shell 2 fixedly installed at the front end of the housing 1, a support base 3 embedded at the bottom end of the housing 1, a control terminal 4 embedded at the front end of the housing 1, a frequency converter body 5 embedded inside the housing 1, and a limit mechanism 6 provided at the bottom inside the housing 1.

[0032] The limiting mechanism 6 includes a mounting bracket 601, which is fixedly installed on one side of the inverter body 5 inside the housing 1. A threaded rod 602 is fixedly installed inside the mounting bracket 601. A sleeve 603 is rotatably connected to the outer wall of the threaded rod 602. A locking groove 604 is opened on the outer wall of the sleeve 603. A limiting block 605 is sleeved on the outside of the locking groove 604. A limiting groove 606 is opened at the top of the limiting block 605. A limiting hole 607 is opened inside the limiting block 605 at the position corresponding to the locking groove 604.

[0033] Specifically, an adjusting rod 608 is inserted into one side of the outer wall of the limiting block 605, and one end of the adjusting rod 608 is rotatably connected to an abutment plate 609.

[0034] Furthermore, the adjusting rod 608 is threadedly connected to the limiting block 605 and rotatably connected to the abutment plate 609, thereby enabling the abutment plate 609 to clamp and position the cable inside the limiting groove 606, thus preventing it from loosening.

[0035] Specifically, the limiting block 605 forms a rotating structure with the sleeve 603 through the engaging groove 604, and the limiting block 605 has a U-shaped structure.

[0036] Furthermore, the U-shaped structure of the limiting block 605 forms a limiting groove 606, which can store and place the cable, preventing the cables from sticking together and getting tangled.

[0037] Specifically, the threaded rod 602 is threadedly connected to the sleeve 603, and a sliding structure is formed between the sleeve 603 and the threaded rod 602.

[0038] Furthermore, the sleeve 603 and the threaded rod 602 are connected by a thread, which makes it easy to adjust the sleeve 603 to adjust the position of the limit block 605 so as to correspond to the cable position and prevent the cable from being pulled at an angle or bent, thereby maintaining the neatness of the cable.

[0039] In use, two limiting mechanisms 6 are set at the front and rear ends of the inverter body 5 inside the housing 1 to separate the high voltage and low voltage to avoid mutual interference. At the same time, the adjusting sleeve 603 rotates along the threaded rod 602 and cooperates with the locking groove 604 to keep the limiting block 605 stable and prevent it from adjusting with the sleeve 603. This can limit the cable and adjust it according to the position of the cable to keep it neat and straight. In conjunction with the adjusting rod 608 and the contact plate 609, it can abut and press the cable in the limiting groove 606 to limit and clamp the cable to prevent it from loosening.

[0040] In summary, the inverter body 5 is equipped with 3X power units, each of which is equivalent to a three-phase input, single-phase output low-voltage inverter. The X power units are first connected in series to form one phase, thus forming a bypass system. If the faulty unit can be disconnected in case of a unit failure, the inverter body 5 can continue to operate, which will greatly improve reliability and thus improve the reliability of the entire process system. Due to the increase in units and cables, the limit block 605 and the limit groove 606 are used to limit and separate each group of cables to avoid them from mixing. At the same time, high voltage and low voltage are set separately to avoid mutual interference. With the adjustment of the threaded rod 602 and the sleeve 603, the position of the cable can be adjusted to keep the cable in a straight state, avoiding oblique pulling, flying wires and bending, which would cause them to mix or even affect the transmission of signals and energy.

[0041] Example 2:

[0042] Please see Figure 2 and Figure 5 This is the second embodiment of the present utility model.

[0043] Specifically, the top of the mounting bracket 601 is provided with a sliding groove 7, and the inside of the sliding groove 7 is provided with an abutment mechanism 8.

[0044] Furthermore, the contact mechanism 8 can press down on and fix the cable from above, further improving the cable's anti-loosening effect.

[0045] Specifically, the abutment mechanism 8 includes a sliding plate 801, which is slidably connected to the top of the mounting bracket 601, and a locking block 802 is fixedly installed on the outer wall of the sliding plate 801.

[0046] Furthermore, the sliding plate 801 and the locking block 802 form an I-beam mechanism, which can slide stably on the mounting bracket 601 along the sliding groove 7.

[0047] Specifically, a fixing cylinder 803 is fixedly installed at the bottom of the locking block 802, and an abutment rod 804 extends through the inside of the fixing cylinder 803. A spring 805 is fixedly installed between the fixing cylinder 803 and the abutment rod 804.

[0048] Furthermore, the spring 805 embedded inside the fixed cylinder 803 can elastically push the abutment rod 804. Through the elastic contraction of the spring 805, the abutment mechanism 8 is prevented from excessively contacting the cable and causing damage.

[0049] Specifically, a rubber block 806 is fixedly installed at the bottom of the abutment rod 804, and a pressing plate 807 is fixedly installed below the rubber block 806.

[0050] Furthermore, the pressing plate 807 at the bottom of the rubber block 806 is provided with an arc-shaped groove, which can better fit and press the cable, and prevent slippage when pressing down.

[0051] In use, the spring 805 embedded inside the fixed cylinder 803 first causes the abutment rod 804 to drive the rubber block 806, allowing the pressing plate 807 to press the cable into the limiting groove 606. At the same time, the sliding plate 801 and the locking block 802 form an I-shaped structure, which allows the abutment mechanism 8 to move under the action of the limiting block 605, thereby pressing the cable to prevent loosening. When inserting the cable, the cable can abut against the pressing plate 807. The limiting block 605 rotates along the sleeve 603, allowing the cable to abut against the limiting groove 606 after entering. The elasticity of the spring 805 can also achieve a clamping and limiting effect, avoiding the trouble of directly moving the pressing plate 807. This prevents loosening and facilitates the insertion and positioning of the cable.

[0052] In summary, with the cooperation of the sliding plate 801 and the locking block 802, the sliding plate 801 can move and engage with the limiting block 605. At the same time, under the elastic push of the spring 805, the pressing plate 807 can abut against the cable inside the limiting groove 606, further improving the clamping and positioning of the cable. The limiting block 605 can be limited by pressing, preventing loosening or rotation, and keeping the cable neatly arranged for easy maintenance later.

[0053] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0054] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0055] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A harmonic-free high-voltage frequency converter, comprising: The outer casing (1) is characterized in that: a limiting shell (2) is fixedly installed at the front end of the outer casing (1), and a support base (3) is embedded at the bottom end of the outer casing (1), a control terminal (4) is embedded at the front end of the outer casing (1), and a frequency converter body (5) is embedded inside the outer casing (1), and a limiting mechanism (6) is provided at the bottom inside the outer casing (1). The limiting mechanism (6) includes a mounting bracket (601), which is fixedly installed on one side of the inverter body (5) inside the housing (1). A threaded rod (602) is fixedly installed inside the mounting bracket (601). A sleeve (603) is rotatably connected to the outer wall of the threaded rod (602). A locking groove (604) is opened on the outer wall of the sleeve (603). A limiting block (605) is sleeved on the outside of the locking groove (604). A limiting groove (606) is opened at the top of the limiting block (605). A limiting hole (607) is opened inside the limiting block (605) corresponding to the position of the locking groove (604).

2. A harmonic-free high-voltage frequency converter according to claim 1, characterized in that An adjusting rod (608) is inserted into one side of the outer wall of the limiting block (605), and one end of the adjusting rod (608) is rotatably connected to an abutment plate (609).

3. The harmonic-free high-voltage frequency converter according to claim 1, characterized in that: The limiting block (605) forms a rotating structure with the sleeve (603) through the engaging groove (604), and the limiting block (605) has a U-shaped structure.

4. The harmonic-free high-voltage frequency converter according to claim 1, characterized in that: The threaded rod (602) is threadedly connected to the sleeve (603), and a sliding structure is formed between the sleeve (603) and the threaded rod (602).

5. A harmonic-free high-voltage frequency converter according to claim 1, characterized in that: The top of the mounting bracket (601) is provided with a groove (7), and the groove (7) is provided with an abutment mechanism (8).

6. A harmonic-free high-voltage frequency converter according to claim 5, characterized in that: The abutment mechanism (8) includes a sliding plate (801), which is slidably connected to the top of the mounting bracket (601), and a locking block (802) is fixedly installed on the outer wall of the sliding plate (801).

7. A harmonic-free high-voltage frequency converter according to claim 6, characterized in that: A fixing cylinder (803) is fixedly installed at the bottom end of the card block (802), and an abutment rod (804) extends through the inside of the fixing cylinder (803). A spring (805) is fixedly installed between the fixing cylinder (803) and the abutment rod (804).

8. A harmonic-free high-voltage frequency converter according to claim 7, characterized in that: A rubber block (806) is fixedly installed at the bottom end of the abutment rod (804), and a pressing plate (807) is fixedly installed below the rubber block (806).

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