A high-power ac test transformer

Abstract

The utility model relates to high -power alternating -current test transformer protection technical field, and disclose a kind of high -power alternating -current test transformer, including casing, the bottom of casing lower side fixed connection pedestal, the connecting rod of casing upper side setting, the core rod of casing inside fixed connection, the top ball of core rod upper end fixed connection and the winding of casing inside fixed connection, the casing lower side is provided with heat dissipation protection mechanism and shock absorbing buffer mechanism, the shock absorbing buffer mechanism is arranged in heat dissipation protection mechanism lower side, the heat dissipation protection mechanism includes heat dissipation fin, the heat dissipation fin fixed connection in casing outer surface, casing outer wall is equipped with air guide shield, the air guide shield upper side is fixedly connected with cover, the shock absorbing buffer mechanism is used to provide damping and buffering effect for device, so that device can reduce impact and can keep stable support effect, the heat dissipation protection mechanism is used to provide heat dissipation effect for device, improves the practicality of device.

Description

Technical Field

[0001] This utility model relates to the field of protection technology for high-power AC test transformers, specifically a high-power AC test transformer. Background Technology

[0002] High-power AC test transformers (such as the HTCX-B type variable frequency series resonant device) play a crucial role in the insulation strength testing of high-voltage electrical equipment. They achieve high-voltage output through the series resonance principle and are suitable for AC / DC withstand voltage tests on equipment such as transformers and GIS systems. In transportation and operation scenarios, such equipment often requires vibration damping designs. For example, during the assembly of amorphous transformers, the large amplitude of vibration can easily cause displacement or deformation of the core and windings. Using rubber vibration dampers and setting buffer grooves can effectively disperse mechanical stress, ensure the stability of the internal structure, and avoid insulation performance degradation or equipment damage caused by vibration. Simultaneously, under high-load testing or high-temperature environments, the equipment's heat dissipation requirements are significant. If the transformer oil temperature exceeds 65℃, it will affect the performance of the insulating medium. Forced convection by fans or a water spray system is needed for physical cooling to prevent the oil temperature from rising above 90℃ and causing malfunctions. Such measures are particularly important during the peak summer season in substations to ensure the continuous and safe operation of the equipment.

[0003] The existing test transformer device does not have heat dissipation and shock absorption functions, which makes the device prone to reduced service life. In order to meet the long-term use of test transformers, an integrated test transformer that can provide shock absorption and cooling is needed to improve the practicality of the device. Utility Model Content

[0004] The purpose of this invention is to provide a high-power AC test transformer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-power AC test transformer, comprising a casing, a base fixedly connected to the lower side of the casing, a connecting rod provided on the upper side of the casing, a core rod fixedly connected inside the casing, a top ball fixedly connected to the upper end of the core rod, and a winding fixedly connected inside the casing. A heat dissipation protection mechanism and a shock absorption buffer mechanism are provided on the lower side of the casing, and the shock absorption buffer mechanism is located below the heat dissipation protection mechanism.

[0006] The heat dissipation and protection mechanism includes heat dissipation fins fixedly connected to the outer surface of the housing. An air-guiding shield is fitted on the outer wall of the housing. A cover plate is fixedly connected to the upper side of the air-guiding shield. A support sleeve is fixedly connected to the lower end of the housing. An air-guiding motor is fixedly connected inside the support sleeve. A fan blade is fixedly connected to the output end of the air-guiding motor. The fan blade is located inside the lower side of the housing. An inlet hole is opened at the lower end of the housing. A guide pipe is provided between the interior of the housing and the interior of the lower side of the air-guiding shield. An exhaust hole is opened on the upper side of the air-guiding shield.

[0007] Preferably, a handle is fixedly connected to the outer surface of the air intake cover, and multiple inlet holes are provided. The inlet holes are located on the lower side of the fan blades and are evenly distributed on the lower side of the casing.

[0008] Preferably, multiple guide pipes and exhaust holes are provided, with the guide pipes located on the upper side of the fan blades and the guide pipes and exhaust holes evenly distributed on the outer side of the casing.

[0009] Preferably, multiple handles are provided, and the handles are distributed on both sides of the casing.

[0010] Preferably, the shock absorption and buffer mechanism includes a support cylinder, which is fixedly connected to the lower surface of the housing. A sliding plate is slidably connected inside the support cylinder, and a buffer spring is fixedly connected between the sliding plate and the lower surface of the housing. A sliding rod is fixedly connected to the lower surface of the sliding plate and is slidably connected to the inner wall of the support cylinder. A support plate is fixedly connected to the lower end of the sliding rod. A pressure-reducing tube is connected to the upper side of the support plate. A support block is fixedly connected inside the pressure-reducing tube. An elastic element is fixedly connected to one side of the support block. A bracket is fixedly connected to one end of the pressure-reducing tube. A sealing plate is fixedly connected to one end of the elastic element. A limit rod is fixedly connected to one side of the sealing plate and is slidably connected inside the bracket.

[0011] Preferably, the support plate is disposed on the underside of the base.

[0012] Preferably, the pressure transfer tube is configured as a conical cylindrical structure.

[0013] Compared with the prior art, this utility model provides a high-power AC test transformer, which has the following beneficial effects:

[0014] The shock absorption and buffer mechanism is used to provide shock absorption and buffering effect for the device. The mechanism uses a piston structure to enable the device to use air pressure and springs as support after being impacted, so that the shock force of the device will not be absorbed by the device. At the same time, the pressure transfer tube and the pressure sealing plate in the mechanism work together. When the slide plate is displaced by the impact of the device, the air pressure inside the support cylinder is released from rapid to slow through the pressure transfer tube, so that the device can reduce the impact and maintain a stable support effect.

[0015] The heat dissipation protection mechanism is used to provide heat dissipation for the device. The mechanism covers the high-heat area through a reasonable layout, so that the device can dissipate heat as much as possible while ensuring the compactness and aesthetics of the device, thus improving its practicality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the 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.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the heat dissipation fins in this utility model;

[0021] Figure 5 This is a schematic diagram of the support cylinder in this utility model.

[0022] In the diagram: 1. Housing; 2. Base; 3. Connecting rod; 4. Core rod; 5. Top ball; 6. Winding; 7. Heat dissipation and protection mechanism; 701. Heat dissipation fins; 702. Air intake cover; 703. Cover plate; 704. Handle; 705. Support sleeve; 706. Air intake motor; 707. Fan blade; 708. Inlet hole; 709. Guide pipe; 710. Exhaust hole; 8. Shock absorption and buffer mechanism; 801. Support cylinder; 802. Slide plate; 803. Buffer spring; 804. Slide rod; 805. Support plate; 806. Pressure tube; 807. Support block; 808. Elastic element; 809. Bracket; 810. Sealing plate; 811. Limiting rod. Detailed Implementation

[0023] 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.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example 1:

[0025] Please see Figure 1-5 This utility model provides a technical solution: a high-power AC test transformer, including a casing 1, a base 2 fixedly connected to the lower side of the casing 1, a connecting rod 3 set on the upper side of the casing 1, a core rod 4 fixedly connected inside the casing 1, a top ball 5 fixedly connected to the upper end of the core rod 4, and a winding 6 fixedly connected inside the casing 1. A heat dissipation protection mechanism 7 and a shock absorption buffer mechanism 8 are provided on the lower side of the casing 1, and the shock absorption buffer mechanism 8 is set below the heat dissipation protection mechanism 7.

[0026] This mechanism is used to cool the device, solving the problem of unstable operation caused by high temperature. The heat dissipation protection mechanism 7 includes heat dissipation fins 701, which are fixedly connected to the outer surface of the housing 1. The outer wall of the housing 1 is fitted with an air-guiding shield 702. A cover plate 703 is fixedly connected to the upper side of the air-guiding shield 702. A support sleeve 705 is fixedly connected to the lower end of the housing 1. An air-guiding motor 706 is fixedly connected inside the support sleeve 705. A fan blade 707 is fixedly connected to the output end of the air-guiding motor 706. The fan blade 707 is located inside the lower side of the housing 1. An inlet hole 708 is opened at the lower end of the housing 1. A guide pipe 709 is provided between the interior of the housing 1 and the interior of the lower side of the air-guiding shield 702. An exhaust hole 710 is opened on the upper side of the air-guiding shield 702. This mechanism guides the airflow to remove the heat from the device to reduce the risk of device overload.

[0027] Furthermore, a handle 704 is fixedly connected to the outer surface of the air intake cover 702, and multiple inlet holes 708 are provided. The inlet holes 708 are located on the lower side of the fan blade 707 and are evenly distributed on the lower side of the casing 1.

[0028] Furthermore, multiple guide pipes 709 and exhaust holes 710 are provided. The guide pipes 709 are located on the upper side of the fan blades 707, and the guide pipes 709 and exhaust holes 710 are evenly distributed on the outer side of the housing 1.

[0029] Furthermore, multiple handles 704 are provided, and the handles 704 are distributed on both sides of the housing 1. Example 2:

[0030] This mechanism provides shock absorption for the device, addressing the problem that existing mechanisms struggle to withstand impacts that could reduce the device's lifespan. (See also...) Figure 1-5 Furthermore, in conjunction with Embodiment 1, the shock absorption and buffer mechanism 8 includes a support cylinder 801, which is fixedly connected to the lower surface of the housing 1. A sliding plate 802 is slidably connected inside the support cylinder 801. A buffer spring 803 is fixedly connected between the sliding plate 802 and the lower surface of the housing 1. A sliding rod 804 is fixedly connected to the lower surface of the sliding plate 802 and slidably connected to the inner wall of the support cylinder 801. A support plate 805 is fixedly connected to the lower end of the sliding rod 804. A pressure-reducing tube 806 is connected to the upper side of the support plate 805. A support block 807 is fixedly connected inside the pressure-reducing tube 806. An elastic element 808 is fixedly connected to one side of the support block 807. A bracket 809 is fixedly connected to one end of the pressure-reducing tube 806, and a sealing plate 810 is fixedly connected to one end of the elastic element 808. A limiting rod 811 is fixedly connected to one side of the sealing plate 810. The limiting rod 811 is slidably connected inside the bracket 809. During the transportation of the conventional device, the device may be impacted by road bumps, causing damage to the internal components. This mechanism causes the support plate 805 to shift due to the inertia of the device, resulting in an increase in the air pressure inside the support cylinder 801. The buffer spring 803 and the air pressure together absorb the impact on the device. Due to the large instantaneous impact force generated by the vibration, this mechanism cooperates with the sealing plate 810 through the pressure transfer tube 806, so that the air pressure can be released instantly during the vibration to avoid rigid support and protect the device. Under the impact, the sealing plate 810 will shift and gradually reduce the air pressure leakage to ensure that the air pressure can continuously absorb the residual impact force of the device, which is convenient for protecting the device.

[0031] Furthermore, the support plate 805 is located on the lower side of the base 2.

[0032] Furthermore, the pressure transfer tube 806 is configured as a conical cylindrical structure.

[0033] In actual operation, when this device is used, if it is impacted during the transportation of a conventional device, its own weight causes the internal space of the support cylinder 801 to contract, which compresses the buffer spring 803 and, together with the increased air pressure inside the support cylinder 801, provides support for the device. At the same time, the sealing plate 810 can adjust the air pressure inside the support cylinder 801, so that the impact on the device can be consumed and the life of the device can be protected. During the use of the device, the user can start the induced draft motor 706. The induced draft motor 706 drives the fan blades 707 to make the air pressure pass through the inlet hole 708, through the guide pipe 709, and then cover the heat dissipation fins 701 and carry away the heat. The heat is discharged through the exhaust hole 710, which can alleviate the high temperature of the device under high load and ensure the safe operation of the device.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A high-power AC test transformer, comprising a casing (1), a base (2) fixedly connected to the lower side of the casing (1), a connecting rod (3) disposed on the upper side of the casing (1), a core rod (4) fixedly connected inside the casing (1), a top ball (5) fixedly connected to the upper end of the core rod (4), and a winding (6) fixedly connected inside the casing (1), characterized in that: The lower side of the casing (1) is provided with a heat dissipation protection mechanism (7) and a shock absorption buffer mechanism (8), and the shock absorption buffer mechanism (8) is located on the lower side of the heat dissipation protection mechanism (7); The heat dissipation protection mechanism (7) includes heat dissipation fins (701), which are fixedly connected to the outer surface of the housing (1). The outer wall of the housing (1) is fitted with an air duct cover (702). A cover plate (703) is fixedly connected to the upper side of the air duct cover (702). A support sleeve (705) is fixedly connected to the lower end of the housing (1). An air duct motor (706) is fixedly connected to the support sleeve (705). A fan blade (707) is fixedly connected to the output end of the air duct motor (706). The fan blade (707) is located inside the lower side of the housing (1). An inlet hole (708) is opened at the lower end of the housing (1). A guide pipe (709) is provided between the interior of the housing (1) and the interior of the lower side of the air duct cover (702). An exhaust hole (710) is opened on the upper side of the air duct cover (702).

2. A high-power AC test transformer according to claim 1, characterized in that: The outer surface of the air intake cover (702) is fixedly connected to a handle (704), and multiple inlet holes (708) are provided. The inlet holes (708) are located on the lower side of the fan blade (707), and the inlet holes (708) are evenly distributed on the lower side of the casing (1).

3. A high-power AC test transformer according to claim 1, characterized in that: Multiple guide pipes (709) and exhaust holes (710) are provided. The guide pipes (709) are located on the upper side of the fan blades (707). The guide pipes (709) and exhaust holes (710) are evenly distributed on the outside of the casing (1).

4. A high-power AC test transformer according to claim 2, characterized in that: Multiple handles (704) are provided, and the handles (704) are distributed on both sides of the casing (1).

5. A high-power AC test transformer according to claim 1, characterized in that: The shock absorption and buffer mechanism (8) includes a support cylinder (801), which is fixedly connected to the lower surface of the housing (1). A sliding plate (802) is slidably connected inside the support cylinder (801). A buffer spring (803) is fixedly connected between the sliding plate (802) and the lower surface of the housing (1). A sliding rod (804) is fixedly connected to the lower surface of the sliding plate (802). The sliding rod (804) is slidably connected to the inner wall of the support cylinder (801). A support plate (805) is fixedly connected to the lower end of the sliding rod (804). A pressure-reducing tube (806) is connected to the upper side of the support plate (805). A support block (807) is fixedly connected inside the pressure-reducing tube (806). An elastic element (808) is fixedly connected to one side of the support block (807). A bracket (809) is fixedly connected to one end of the pressure-reducing tube (806). A sealing plate (810) is fixedly connected to one end of the elastic element (808). A limit rod (811) is fixedly connected to one side of the sealing plate (810). The limit rod (811) is slidably connected inside the bracket (809).

6. A high-power AC test transformer according to claim 5, characterized in that: The support plate (805) is located on the underside of the base (2).

7. A high-power AC test transformer according to claim 5, characterized in that: The pressure transfer tube (806) is configured as a conical cylindrical structure.

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