Transformer capacity tester

Abstract

The utility model discloses a transformer capacity tester, and relates to the technical field of transformer capacity characteristic testing equipment, the transformer capacity tester comprises a box body and a tester body, the tester body is located in the box body, two sides of the tester body are symmetrically provided with height adjusting assemblies, each height adjusting assembly comprises a helical rack and a fixing assembly, and the helical rack is located in the box body. The fixing assembly comprises a push rod, an inclined block and a spring, the inclined block is matched with the helical rack, and the tester body is adjusted and fixed through the helical rack and the fixing assembly; a liquid cooling heat dissipation assembly is arranged in the box body, the liquid cooling heat dissipation assembly comprises a copper pipe, a water inlet pipe, a water outlet pipe, a water pump and cooling fins, the copper pipe, the water inlet pipe, the water outlet pipe, the water pump and the cooling fins are communicated to form a circulating water path, and the circulating water path is filled with cooling liquid. The tester body is continuously cooled through the circulating water path, the cooling effect is improved, and the height is conveniently adjusted through the helical rack and the fixing assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer capacity characteristic testing equipment, in particular to a transformer capacity tester. Background Art

[0002] The capacity tester is a professional instrument specially used to measure whether the capacity of the transformer is consistent with the actual nameplate. The transformer capacity tester is a multifunctional instrument that is very suitable for accurately measuring the capacity and type of transformers on site. It can accurately measure the capacity, type and load loss of various types of transformers such as oil-immersed, dry-type, special transformers, etc. using the built-in power supply of the instrument.

[0003] However, the height of the existing tester cannot be adjusted, which makes it inconvenient for operators of different heights to operate; in addition, a large amount of residual heat will be retained inside the tester when it is in use, thereby affecting the stability of the test operation of the tester and the accuracy of the test results.

[0004] A Chinese patent with authorization announcement number CN214622833U discloses a transformer capacity characteristic tester, in which fan blades are provided inside the box and below the tester body to dissipate heat from the tester body; at the same time, telescopic support legs are provided at the bottom of the box to achieve the function of adjusting the height.

[0005] However, this solution still has the following shortcomings:

[0006] 1. The cooling effect of the fan is limited. When the tester is in use, the bottom fan blows the air upward along the four sides of the tester, affecting the operator's use of the upper operation panel.

[0007] 2. Multiple telescopic support legs outside the box need to be manually unfolded and adjusted, which is time-consuming and labor-intensive, and the adjustment efficiency is limited. Utility Model Content

[0008] The utility model aims to provide a transformer capacity tester to solve the problems existing in the background technology.

[0009] The purpose of this utility model is achieved through the following technical solutions:

[0010] A transformer capacity tester, comprising a box and a tester body, wherein the tester body is located in the box, and height adjustment components are symmetrically arranged on both sides of the tester body, wherein the height adjustment components comprise an oblique rack and a fixing component, wherein the oblique rack is fixed to the middle part of the outer side of the tester body, wherein the fixing component comprises a push rod, an oblique block and a spring, wherein the oblique block cooperates with the oblique rack, and the tester body is adjusted and fixed by the oblique rack and the fixing component;

[0011] A liquid cooling heat dissipation component is provided in the box body, and the liquid cooling heat dissipation component includes a copper tube, a water inlet pipe, a water outlet pipe, a water pump and a heat sink. The copper tube, the water inlet pipe, the water outlet pipe, the water pump and the heat sink are connected to form a circulating water circuit, and the circulating water circuit is filled with coolant. The copper tube passes through the tester body and contacts the heat generating components in the tester body, and the heat sink is fixed to the back of the box body.

[0012] Furthermore, the inner dimension of the box is larger than the outer dimension of the tester body, the bevel rack is arranged vertically, and the bevel teeth in the bevel rack are arranged obliquely downward. The fixing assembly also includes a support frame, and the position of the support frame corresponds to the bevel rack. The support frame is a hollow structure, one end of the support frame is fixed to the inner wall of the box, the push rod and the spring are located in the support frame, and a fixing plate is provided inside the support frame, and the fixing plate is fixed to the inner wall of the support frame as a whole, and the support frame is open toward one end of the bevel rack.

[0013] Furthermore, one end of the push rod passes through the fixed plate and is slidably connected to the fixed plate, the other end of the push rod is fixed to the inclined block, the size of the inclined block is smaller than the size of the opening of the support frame, the push rod is provided with a baffle, the size of the baffle is smaller than the size of the internal cavity of the support frame, the spring is sleeved on the push rod, one end of the spring is connected to the baffle, and the other end of the spring is connected to the fixed plate.

[0014] Furthermore, the push rod is provided with a shifting rod, the shifting rod is located on a side of the fixing plate away from the inclined block, the shifting rod extends out of the support frame, and the support frame is provided with a sliding groove at a position corresponding to the shifting rod.

[0015] Furthermore, the box body is provided with an opening at a position corresponding to the heat sink, the heat sink is fixed at the opening of the box body, a flow channel is provided in the heat sink, the water inlet pipe and the water outlet pipe are respectively connected to the heat sink, and a fan is provided on the outside of the heat sink close to the box body.

[0016] Furthermore, both ends of the copper tube extend out of the tester body, one end of the copper tube is connected to the water inlet pipe, and the other end of the copper tube is connected to the water outlet pipe. The water pump is located at the connection between the copper tube and the water inlet pipe, and the base of the water pump is fixed on the outside of the tester body.

[0017] Furthermore, handles are provided on both sides of the tester body, and the handles are located above the bevel rack.

[0018] The beneficial effects of the utility model are:

[0019] 1) The tester body is continuously cooled through the circulating water circuit to improve the cooling effect. At the same time, since the heat is taken away by the coolant in the copper tube, and the heat sink is installed on the back of the box, the hot air will not affect the operator's operation of the tester body.

[0020] 2) It is easy to adjust the height and improve the adjustment efficiency. Through the bevel rack and the fixing assembly, there is no need to perform complicated lifting operations when raising the tester body. You only need to lift the tester body, which improves the lifting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of a transformer capacity tester of the utility model when it is not raised;

[0022] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0023] Figure 3 This is a schematic diagram of a transformer capacity tester after being raised according to the utility model;

[0024] Figure 4 for Figure 2 The enlarged schematic diagram of point B in the middle;

[0025] Figure 5 It is a side schematic diagram of a transformer capacity tester of the utility model;

[0026] Figure 6 It is a top view schematic diagram of the fixing assembly in the utility model;

[0027] In the figure, 1-box, 2-tester body, 201-handle, 3-fixed component, 301-support frame, 302-fixed plate, 303-push rod, 304-lever, 305-spring, 306-baffle, 307-oblique block, 4-oblique rack, 5-liquid cooling component, 501-heat sink, 502-water outlet pipe, 503-water inlet pipe, 504-copper pipe, 505-water pump, 506-fan. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 6 , the utility model provides a technical solution:

[0030] like Figure 1-Figure 6 As shown, a transformer capacity tester comprises a box 1 and a tester body 2, wherein the tester body 2 is located in the box 1, and height adjustment components are symmetrically arranged on both sides of the tester body 2, wherein the height adjustment components comprise an oblique rack 4 and a fixing component 3, wherein the oblique rack 4 is fixed to the middle of the outer side of the tester body 2, and the fixing component 3 comprises a push rod 303, an oblique block 307 and a spring 305, wherein the oblique block 307 cooperates with the oblique rack 4, and the tester body 2 is adjusted and fixed by the oblique rack 4 and the fixing component 3;

[0031] A liquid cooling heat dissipation component 5 is provided in the box body 1, and the liquid cooling heat dissipation component 5 includes a copper tube 504, a water inlet pipe 503, a water outlet pipe 502, a water pump 505 and a heat sink 501. The copper tube 504, the water inlet pipe 503, the water outlet pipe 502, the water pump 505 and the heat sink 501 are connected to form a circulating water circuit, and the circulating water circuit is filled with coolant. The copper tube 504 passes through the tester body 2 and contacts the heat-generating components in the tester body 2, and the heat sink 501 is fixed on the back of the box body 1.

[0032] Through the above technical solution, the liquid cooling heat dissipation component 5 is connected to the power supply of the tester body 2. When the tester body 2 is used to test the capacity of the transformer, the liquid cooling heat dissipation component 5 starts to work. Since the copper tube 504 is in contact with the internal heating component, the heat generated by the heating component is conducted to the copper tube 504 through the copper tube 504 to heat the coolant in the copper tube 504. The heated coolant enters the flow channel in the heat sink 501 through the outlet pipe 502. The heat dissipation area is increased by the heat sink 501, so that the heated coolant is quickly cooled down. The cooled coolant re-enters the copper tube 504 through the water pump 505 and the water inlet pipe 503 to participate in heat dissipation. The tester body 2 is continuously cooled through the circulating water path to improve the cooling effect. At the same time, since the heat is taken away by the coolant in the copper tube 504, and the heat sink 501 is installed on the back of the box 1, the hot air will not affect the operator's operation of the tester body 2.

[0033] When the height of the tester body 2 needs to be adjusted, it is only necessary to place the box 1 on the ground and then lift the tester body 2. Since a bevel rack 4 is provided on the outside of the tester body 2, the rising of the tester body 2 will not be affected. When the tester body 2 is raised to a suitable height, the bevel rack 4 will be stuck by the bevel block 307, so that the tester body 2 will not fall and the height of the tester body 2 remains unchanged, which is convenient for personnel to operate.

[0034] Furthermore, the inner dimension of the box body 1 is larger than the outer dimension of the tester body 2, the bevel rack 4 is arranged vertically, and the bevel teeth in the bevel rack 4 are arranged obliquely downward, and the fixing assembly 3 also includes a support frame 301, and the position of the support frame 301 corresponds to the bevel rack 4. The support frame 301 is a hollow structure, and one end of the support frame 301 is fixed to the inner wall of the box body 1, the push rod 303 and the spring 305 are located in the support frame 301, and a fixing plate 302 is provided inside the support frame 301, and the fixing plate 302 is fixed to the inner wall of the support frame 301 as a whole, and the support frame 301 is open toward one end of the bevel rack 4.

[0035] Furthermore, one end of the push rod 303 passes through the fixed plate 302 and is slidably connected to the fixed plate 302, the other end of the push rod 303 is fixed to the inclined block 307, the size of the inclined block 307 is smaller than the size of the opening of the support frame 301, and a baffle 306 is provided on the push rod 303, the size of the baffle 306 is smaller than the size of the internal cavity of the support frame 301, the spring 305 is sleeved on the push rod 303, one end of the spring 305 is connected to the baffle 306, and the other end of the spring 305 is connected to the fixed plate 302.

[0036] Furthermore, the push rod 303 is provided with a lever 304 , the lever 304 is located on a side of the fixing plate 302 away from the inclined block 307 , the lever 304 extends out of the support frame 301 , and the support frame 301 is provided with a sliding groove at a position corresponding to the lever 304 .

[0037] Through the above technical solutions, and refer to Figure 1 , Figure 2 As shown, the tester body 2 is placed in the box 1 at this time, and the inclined block 307 is pushed out of the support frame 301 through the push rod 303 under the elastic force of the spring 305 and is stuck under the inclined teeth of the inclined rack 4;

[0038] See also Figure 3 and Figure 4As shown, when the tester body 2 needs to be raised, since the bevel teeth of the bevel rack 4 have a downwardly inclined slope, and the corresponding bevel block 307 has an upwardly inclined slope, at this time, as the tester body 2 rises, the bevel teeth in the bevel rack 4 below the bevel block 307 will slide relative to the bevel block 307, and the push rod 303 connected to the bevel block 307 is limited by the fixing plate 302, so the bevel block 307 will be pressed to one side of the support frame 301 by the bevel rack 4, overcoming the elastic force of the spring 305, so that the tester body 2 can be raised. When the tester body 2 is raised to a suitable position, the bevel block 307 is no longer squeezed by the bevel rack 4. At this time, the bevel block 307 is reset under the action of the spring 305, and the bevel block 307 extends out of the support frame 301 and falls under the bevel teeth in the bevel rack 4, and the support frame 301 is fixed by the plane on the upper surface of the bevel block 307 abutting against the bevel rack 4.

[0039] When the tester body 2 needs to be lowered, the lever 304 is pulled to move the push rod 303 to the side away from the bevel rack 4, and the spring 305 is compressed by the baffle 306, so that the bevel block 307 is retracted into the support frame 301, and the bevel rack 4 no longer abuts against the bevel block 307, and then the tester body 2 falls.

[0040] By means of the bevel rack 4 and the fixing assembly 3 , there is no need to perform complicated lifting operations when lifting the tester body 2 , and only the tester body 2 needs to be lifted, thereby improving the lifting efficiency.

[0041] Furthermore, the box body 1 is provided with an opening at a position corresponding to the heat sink 501, the heat sink 501 is fixed at the opening of the box body 1, a flow channel is provided inside the heat sink 501, the water inlet pipe 503 and the water outlet pipe 502 are respectively connected to the heat sink 501, and a fan 506 is provided on the outside of the heat sink 501 close to the box body 1.

[0042] Furthermore, both ends of the copper tube 504 extend out of the tester body 2, one end of the copper tube 504 is connected to the water inlet pipe 503, and the other end of the copper tube 504 is connected to the water outlet pipe 502, and the water pump 505 is located at the connection between the copper tube 504 and the water inlet pipe 503, and the base of the water pump 505 is fixed on the outside of the tester body 2.

[0043] Through the above technical solution, the hot air emitted by the heat sink 501 is discharged through the fan 506 to improve air circulation, and the hot air discharged through the fan 506 is located on the back of the box 1 and does not affect the operation of the tester body 2. At the same time, the water inlet pipe 503 and the water outlet pipe 502 are reserved with sufficient length and both use hoses, which are suitable for the raising and lowering of the tester body 2.

[0044] Handles 201 are provided on both sides of the tester body 2 , and the handles 201 are located above the bevel rack 4 .

[0045] Through the above technical solution, the tester body 2 can be conveniently lifted by the handle 201, thereby improving the convenience of operation.

[0046] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be protected by the claims attached to the utility model.

Claims

1. A transformer capacity tester, comprising a box (1) and a tester body (2), wherein the tester body (2) is located inside the box (1), and characterized in that: Height adjustment components are symmetrically arranged on both sides of the tester body (2), the height adjustment components comprising an oblique rack (4) and a fixing component (3), the oblique rack (4) being fixed to the middle of the outer side of the tester body (2), the fixing component (3) comprising a push rod (303), an oblique block (307) and a spring (305), the oblique block (307) being matched with the oblique rack (4), and the tester body (2) being adjusted and fixed by means of the oblique rack (4) and the fixing component (3); A liquid cooling heat dissipation component (5) is arranged in the box body (1), and the liquid cooling heat dissipation component (5) comprises a copper tube (504), a water inlet pipe (503), a water outlet pipe (502), a water pump (505) and a heat sink (501). The copper tube (504), the water inlet pipe (503), the water outlet pipe (502), the water pump (505) and the heat sink (501) are connected to form a circulating water circuit, and the circulating water circuit is filled with cooling liquid. The copper tube (504) passes through the tester body (2) and contacts the heat generating components in the tester body (2), and the heat sink (501) is fixed to the back of the box body (1).

2. The transformer capacity tester according to claim 1, characterized in that: The inner dimension of the box (1) is larger than the outer dimension of the tester body (2); the bevel rack (4) is arranged vertically; the bevel teeth in the bevel rack (4) are arranged obliquely downward; the fixing assembly (3) further comprises a support frame (301); the position of the support frame (301) corresponds to the bevel rack (4); the support frame (301) is a hollow structure; one end of the support frame (301) is fixed to the inner wall of the box (1); the push rod (303) and the spring (305) are located in the support frame (301); a fixing plate (302) is provided inside the support frame (301); the fixing plate (302) is fixed to the inner wall of the support frame (301) as a whole; and the support frame (301) is open toward one end of the bevel rack (4).

3. The transformer capacity tester according to claim 2, characterized in that: One end of the push rod (303) passes through the fixed plate (302) and is slidably connected to the fixed plate (302), the other end of the push rod (303) is fixed to the inclined block (307), the size of the inclined block (307) is smaller than the size of the opening of the support frame (301), a baffle (306) is provided on the push rod (303), the size of the baffle (306) is smaller than the size of the internal cavity of the support frame (301), the spring (305) is sleeved on the push rod (303), one end of the spring (305) is connected to the baffle (306), and the other end of the spring (305) is connected to the fixed plate (302).

4. The transformer capacity tester according to claim 2, characterized in that: The push rod (303) is provided with a lever (304), the lever (304) is located on a side of the fixed plate (302) away from the inclined block (307), the lever (304) extends out of the support frame (301), and a sliding groove is provided on the support frame (301) at a position corresponding to the lever (304).

5. The transformer capacity tester according to claim 1, characterized in that: The housing (1) is provided with an opening at a position corresponding to the heat sink (501); the heat sink (501) is fixed at the opening of the housing (1); a flow channel is provided in the heat sink (501); the water inlet pipe (503) and the water outlet pipe (502) are respectively connected to the heat sink (501); and a fan (506) is provided on the outside of the heat sink (501) close to the housing (1).

6. The transformer capacity tester according to claim 5, characterized in that: Both ends of the copper tube (504) extend out of the tester body (2); one end of the copper tube (504) is connected to the water inlet pipe (503); the other end of the copper tube (504) is connected to the water outlet pipe (502); the water pump (505) is located at the connection between the copper tube (504) and the water inlet pipe (503); and the base of the water pump (505) is fixed on the outside of the tester body (2).

7. The transformer capacity tester according to claim 1, characterized in that: Handles (201) are provided on both sides of the tester body (2), and the handles (201) are located above the bevel rack (4).

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