Transformer iron core clamp

Abstract

The utility model provides a transformer iron core clamp which comprises an iron core, a clamp body, a heat dissipation assembly and a damping mechanism, the clamp body is fixedly arranged at the upper end and the lower end of the iron core, a plurality of pull rods are arranged on the clamp body, fan boxes are arranged on the two sides of the bottom of the iron core on the two sides of the clamp body, and the heat dissipation assembly is fixedly arranged on the clamp body. The heat dissipation assembly comprises base plates fixedly arranged on the clamping pieces and an air guide plate fixedly arranged between the two base plates, an air gathering pipe is fixedly arranged at the position, on the top of the fan box, of the outer sides of the base plates, and the damping mechanism is fixedly arranged on the pull rod. According to the transformer iron core clamping piece, airflow blown out by the fan box is conveyed into the insulation gaps among the iron core, the low-voltage coil and the high-voltage coil through the heat dissipation assembly, the heat dissipation efficiency of the iron core is improved, the damping mechanism provides certain pressure for the iron core through the damping mechanism, and vibration of the iron core is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of iron core clamps, in particular to an iron core clamp for a transformer. Background Art

[0002] Dry-type transformers are widely used in various places in life and production. The iron core generally needs to be clamped and fixed by clamps. The upper and lower clamps of the iron core are both channel steels, and the pull rods are installed on the upper and lower planes of the channel steel. The clamps of existing dry-type transformers are fixed with bolts. The transformer will vibrate to a certain extent when used for a long time, causing the bolts of the transformer to loosen to a certain extent, resulting in the inability to clamp the clamps for a long time. In addition, the use of the clamps reduces the ventilation and heat dissipation performance of the iron core. Utility Model Content

[0003] The utility model aims to provide a transformer iron core clamp to solve the problems of poor heat dissipation effect and iron core vibration of the existing dry-type transformer.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A transformer core clamp, comprising:

[0006] An iron core; a clamp fixedly arranged at the upper and lower ends of the iron core, a plurality of pull rods being arranged on the clamp, and fan boxes being arranged on both sides of the clamp at the bottom of the iron core; a heat dissipation component fixedly arranged on the clamp, the heat dissipation component comprising a pad fixedly arranged on the clamp, and an air guide plate fixedly arranged between the two pads, an air collecting duct being fixedly arranged on the outer side of the pad on the top of the fan box; a shock absorbing mechanism fixedly arranged on the pull rods.

[0007] Furthermore, six through grooves are arranged on the pad, the through grooves on both sides of the pad are S-shaped, and the bottom of the air collecting duct is fixedly arranged on the through grooves.

[0008] Furthermore, a strip groove is arranged inside the air guide plate, and an air outlet pipe is arranged through the top of the air guide plate and the strip groove.

[0009] Furthermore, the top of the air collecting pipe is an annular pipe, and an inclined plate is provided at the bottom of the annular pipe.

[0010] Furthermore, the shock absorbing mechanism includes a compression spring and a driving ring fixedly arranged at both ends of the compression spring, a driving plate is connected to the driving ring, a pressure plate is connected to the top of the driving plate, and a rotating shaft is rotatably arranged between the driving plate, the driving ring and the pressure plate.

[0011] Furthermore, a spring is provided on the pull rod between the driving ring and the clamp.

[0012] Furthermore, a low-voltage coil and a high-voltage coil are sequentially arranged on the outside of the iron core, and a pad is fixedly arranged between the pad and the low-voltage coil and the high-voltage coil.

[0013] Furthermore, the air guide plate is arranged at the bottom of the insulation gap between the low-voltage coil and the high-voltage coil, and the air guide plate is arranged at the bottom of the insulation gap between the iron core and the low-voltage coil.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model discloses a transformer core clamp, which, through the setting of a heat dissipation component, delivers the airflow blown out of the fan box to the insulation gap between the core, the low-voltage coil and the high-voltage coil, thereby improving the heat dissipation efficiency of the core. Through the setting of the shock-absorbing mechanism, the shock-absorbing mechanism provides a certain pressure on the core, thereby reducing the vibration of the core.

[0016] In addition, the wind blown out of the fan box can be gathered in the air collecting duct through the inclined plate and the annular tube setting. The combined design of the through groove, the strip groove and the air outlet duct provides a channel for the wind to flow in the heat dissipation component. The setting of the spring provides an assist for the drive ring to prevent the shock absorbing mechanism from deviating on the pull rod, while reducing the force on the compression spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0018] Figure 1 This is an overall schematic diagram of a transformer core clamp according to an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the shock absorbing mechanism on the clamp and the pull rod according to the embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the overall structure of the heat dissipation assembly and a partial cross-sectional view of the pad according to an embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the overall structure of the air collecting duct according to an embodiment of the utility model;

[0022] Figure 5 It is a schematic diagram of the overall structure of the shock absorbing mechanism described in the embodiment of the utility model.

[0023] Explanation of the reference numerals in the accompanying drawings: 1. iron core; 2. clamp; 201. pull rod; 202. fan box; 3. heat dissipation assembly; 301. pad; 3011. through groove; 302. air guide plate; 3021. strip groove; 3022. air outlet pipe; 303. air collecting pipe; 3031. annular pipe; 3032. inclined plate; 4. shock absorbing mechanism; 401. compression spring; 402. drive ring; 403. drive plate; 404. pressure plate; 405. rotating shaft; 5. spring; 6. low-voltage coil; 7. high-voltage coil; 8. pad. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0025] In the description of the present invention, it should be noted that if there are terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc., they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first", "second", etc., they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that if there are terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc., they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first", "second", etc., they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0028] This embodiment relates to a transformer core clamp, the overall structure of which is as follows: Figure 1 As shown, it includes an iron core 1, a clamp 2, a heat dissipation component 3, and a shock absorbing mechanism 4.

[0029] Among them, the clamp 2 is fixedly set at the upper and lower ends of the iron core 1, a plurality of pull rods 201 are set on the clamp 2, fan boxes 202 are set on both sides of the clamp 2 at the bottom of the iron core 1, the heat dissipation component 3 is fixedly set on the clamp 2, the heat dissipation component 3 includes a pad 301 fixedly set on the clamp 2, and an air guide plate 302 fixedly set between the two pads 301, an air collecting duct 303 is fixedly set on the outside of the pad 301 at the top of the fan box 202, and the shock absorbing mechanism 4 is fixedly set on the pull rod 201.

[0030] It is worth mentioning that the pad 301 is installed between the clamp 2 and the pad 8 at the bottom of the iron core 1 to provide support for the pad 8, the air guide plate 302 is installed between the two pads 301, and the air guide plate 302 is located at the bottom of the gap between the iron core 1, the low-voltage coil 6 and the high-voltage coil 7, the air collecting pipe 303 is located at the top of the fan box 202 and is installed on the outer side of the pad 301, and the air flow is transported to the bottom of the coil through the air collecting pipe 303, the pad 301 and the air guide plate 302, and is transported to the insulating gap between the iron core 1, the low-voltage coil 6 and the high-voltage coil 7 through the air outlet pipe 3022; one end of the shock absorbing mechanism 4 is installed on the pull rod 201, and the other end is pressed against the iron core 1, providing pressure for the stability of the iron core 1.

[0031] As a preferred example, Figure 4 As shown, in this embodiment, the top of the air collecting pipe 303 is an annular pipe 3031, and an inclined plate 3032 is arranged at the bottom of the annular pipe 3031. It should be noted that the arrangement of the annular pipe 3031 guides the airflow into the air collecting pipe 303, and under the action of the annular pipe 3031, provides power for the flow of the airflow in the air collecting pipe 303. The inclined plates 3032 are installed on both sides of the annular pipe 3031. The inclined plates 3032 collect part of the airflow delivered by the fan box 202 onto the annular pipe 3031, thereby increasing the flow rate of the airflow in the air collecting pipe 303.

[0032] As a preferred example, Figure 3 As shown, in this embodiment, six through slots 3011 are provided on the pad 301, and the through slots 3011 on both sides of the pad 301 are S-shaped, and the bottom of the air collecting pipe 303 is fixedly provided on the through slots 3011. Specifically, the through slots 3011 on the pad 301 transport the airflow in the air collecting pipe 303 to the air guide plate 302 through the pad 301.

[0033] As a preferred embodiment, Figure 3As shown, in this embodiment, a strip groove 3021 is provided inside the air guide plate 302, and an air outlet pipe 3022 is provided on the top of the air guide plate 302 and through the strip groove 3021. Specifically, the air guide plate 302 is connected to the pad 301, the through groove 3011 and the strip groove 3021 are connected to each other, and the airflow in the air guide plate 302 is transported upward to the insulation gap between the iron core 1, the low-voltage coil 6 and the high-voltage coil 7 in the strip groove 3021 through the air outlet pipe 3022 connected to the strip groove 3021, and the heat generated by the iron core 1 and the coil is taken away by the flow of airflow in the insulation gap.

[0034] As a preferred example, Figure 5 As shown, in this embodiment, the shock absorbing mechanism 4 includes a compression spring 401 and a driving ring 402 fixedly arranged at both ends of the compression spring 401, a driving plate 403 is connected to the driving ring 402, a pressure plate 404 is connected to the top of the driving plate 403, and a rotating shaft 405 is rotatably arranged between the driving plate 403, the driving ring 402 and the pressure plate 404.

[0035] Specifically, drive rings 402 are installed at both ends of the compression spring 401, the compression spring 401 and the drive ring 402 are sleeved on the pull rod 201, the pressure plate 404 is pressed against the iron core 1, and the pressure plate 404 and the drive ring 402 are connected through the drive plate 403 and the rotating shaft 405. When the iron core 1 vibrates, the iron core 1 squeezes the pressure plate 404, and the pressure plate 404 moves toward the side close to the pull rod 201. At the same time, the pressure plate 404 squeezes and drives the drive plate 403, and the other end of the drive plate 403 drives the drive ring 402 to move toward the direction close to the compression spring 401. Under the pressure of the drive ring 402, the compression spring 401 squeezes the drive ring 402 outward.

[0036] As a preferred example, Figure 2 As shown, in this embodiment, a spring 5 is provided on the pull rod 101 between the drive ring 402 and the clamp 1. Specifically, the spring 5 is installed on the pull rod 201 between the drive ring 402 and the clamp 2, ensuring the stability of the shock absorbing mechanism 4, preventing the shock absorbing mechanism 4 from deflecting on the pull rod 201, and the provision of the spring 5 reduces the force on the compression spring 401 between the drive ring 402.

[0037] The transformer core clamp described in the utility model, through the setting of the heat dissipation component 3, conveys the airflow blown out of the fan box 202 to the insulation gap between the core 1, the low-voltage coil 6 and the high-voltage coil 7, thereby improving the heat dissipation efficiency of the core 1. Through the setting of the shock-absorbing mechanism 4, the shock-absorbing mechanism 4 provides a certain pressure on the core 1, thereby reducing the vibration of the core 1.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A transformer core clamp, characterized in that: include: Iron core (1); A clamp (2) is fixedly arranged at the upper and lower ends of the iron core (1), a plurality of pull rods (201) are arranged on the clamp (2), and fan boxes (202) are arranged on both sides of the clamp (2) at the bottom of the iron core (1); A heat dissipation component (3) is fixedly arranged on the clamp (2), the heat dissipation component (3) comprising a pad (301) fixedly arranged on the clamp (2), and an air guide plate (302) fixedly arranged between the two pads (301), and an air collecting duct (303) is fixedly arranged on the outside of the pad (301) at the top of the fan box (202); The shock absorbing mechanism (4) is fixedly arranged on the pull rod (201).

2. The transformer core clamp according to claim 1, characterized in that: The pad (301) is provided with six through grooves (3011), the through grooves (3011) on both sides of the pad (301) are S-shaped, and the bottom of the air collecting pipe (303) is fixedly arranged on the through grooves (3011).

3. The transformer core clamp according to claim 1, characterized in that: A strip groove (3021) is arranged inside the air guide plate (302), and an air outlet pipe (3022) is arranged on the top of the air guide plate (302) and passes through the strip groove (3021).

4. The transformer core clamp according to claim 1, characterized in that: The top of the air collecting pipe (303) is an annular pipe (3031), and the bottom of the annular pipe (3031) is provided with an inclined plate (3032).

5. The transformer core clamp according to claim 1, characterized in that: The shock absorbing mechanism (4) comprises a compression spring (401) and a driving ring (402) fixedly arranged at both ends of the compression spring (401); a driving plate (403) is connected to the driving ring (402); a pressure plate (404) is connected to the top of the driving plate (403); and a rotating shaft (405) is rotatably arranged between the driving plate (403) and the driving ring (402) and the pressure plate (404).

6. The transformer core clamp according to claim 5, characterized in that: A spring (5) is provided on the pull rod (201) between the drive ring (402) and the clamp (2).

7. The transformer core clamp according to claim 1, characterized in that: A low-voltage coil (6) and a high-voltage coil (7) are sequentially arranged on the outside of the iron core (1), and a cushion block (8) is fixedly arranged between the cushion plate (301) and the low-voltage coil (6) and the high-voltage coil (7).

8. The transformer core clamp according to claim 7, characterized in that: The air guide plate (302) is arranged at the bottom of the insulation gap between the low-voltage coil (6) and the high-voltage coil (7), and the air guide plate (302) is arranged at the bottom of the insulation gap between the iron core (1) and the low-voltage coil (6).

Images