Low-voltage upper clamping piece and clamping mechanism of transformer and transformer

By providing notches and embedding non-magnetic plates on the side plates of the low-voltage clamp of the transformer, the problem of high transformer losses caused by channel steel clamps is solved, and the safe and stable operation of the transformer is achieved.

CN224203931UActive Publication Date: 2026-05-05特变电工湖南电气有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
特变电工湖南电气有限公司
Filing Date
2025-05-19
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In existing transformers, the channel steel clamps cause significant losses, especially when the current at the low-voltage output terminals is too high, which can easily lead to overheating.

Method used

Design a low-voltage upper clamp, including a top plate, a side plate and a bottom plate. The side plate has a notch and an embedded non-magnetic plate for clamping the low-voltage output wire head, reducing the magnetic permeability to reduce electromagnetic induction heating.

Benefits of technology

By reducing the magnetic permeability, transformer losses are reduced, ensuring safe and stable operation and reducing heat generation caused by electromagnetic induction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a low-voltage upper clamping piece of a transformer, a clamping mechanism and the transformer, and relates to the technical field of transformer accessories, the low-voltage upper clamping piece of the transformer is provided with a top plate, a side plate and a bottom plate which are connected in sequence, the top plate, the side plate and the bottom plate define a groove with a notch back to a transformer iron core, and the notch and the side plate are oppositely arranged; the top plate is close to the top of the transformer iron core, and one side, back to the notch, of the side plate abuts against the transformer iron core; notches are formed in positions, corresponding to the low-voltage wire outlet heads on the low-voltage side, of the side plate and extend to the bottom plate; and a non-magnetic plate for blocking the notch is arranged in the notch. According to the low-voltage upper clamping piece, the notches are formed in the positions, corresponding to the low-voltage wire outlet heads, of the side plates of the low-voltage upper clamping piece, and the non-magnetic plates are arranged in the notches, so that heat generated by electromagnetic induction between the low-voltage wire outlet heads and the non-magnetic plates when the current of the low-voltage wire outlet heads is too large is reduced, the loss of a transformer is further reduced, and the service life of the transformer is prolonged. And safe and stable operation of the transformer is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of transformer accessories technology, and in particular to a low-voltage upper clamping part, clamping mechanism and transformer. Background Technology

[0002] For most transformers currently available, channel steel or laminated wood is typically used as the transformer clamping components. However, for large-capacity transformers, although laminated wood is cheaper, it has poor durability and is prone to cracking, making it unsuitable for long-term use. While channel steel has high mechanical strength and rigidity, its high permeability means that when the low-voltage output current is too high, the low-voltage upper clamp, being adjacent to the low-voltage output, is prone to overheating near the low-voltage output, leading to significant transformer losses. Utility Model Content

[0003] The main purpose of this utility model is to propose a low-voltage upper clamping component, clamping mechanism, and transformer for a transformer, aiming to solve the technical problem that channel steel clamping components can easily lead to high transformer losses.

[0004] To achieve the above objectives, this utility model proposes a low-voltage upper clamp for a transformer. The transformer includes a transformer core and a low-voltage coil and a high-voltage coil wound on the transformer core. The transformer core has a low-voltage side and a high-voltage side on opposite sides along its width direction. The low-voltage output of the low-voltage coil and the high-voltage output of the high-voltage coil are located on the low-voltage side and the high-voltage side, respectively.

[0005] The low-voltage upper clamp is located on the low-voltage side. The low-voltage upper clamp has a top plate, a side plate, and a bottom plate connected in sequence. The top plate, the side plate, and the bottom plate form a groove with the opening facing away from the transformer core. The groove is opposite to the side plate. The top plate is close to the top of the transformer core, and the side plate facing away from the groove abuts against the transformer core. The side plate has notches corresponding to the positions of each low-voltage output terminal on the low-voltage side, and the notches extend to the bottom plate. A non-magnetic plate is provided in the notch to seal the notch.

[0006] In one embodiment, the notch includes a first through hole and a second through hole that are interconnected. The first through hole is formed in the side plate and extends upward from the bottom of the side plate, and the second through hole is formed in the bottom plate and extends toward the slot from the end where the bottom plate is connected to the side plate.

[0007] The non-magnetic plate includes a first connecting plate and a second connecting plate that are connected to each other. The first connecting plate is disposed in the first through hole and blocks the first through hole, and the second connecting plate is disposed in the second through hole and blocks the second through hole.

[0008] In one embodiment, the first through hole extends upward from the bottom of the side plate to a position close to the top plate, and the second through hole extends from the end of the bottom plate connected to the side plate toward the slot to a position close to the slot.

[0009] In one embodiment, the first connecting plate is flush with the opposite sides of the side plate along the width direction on both sides, and the top and bottom of the second connecting plate are flush with the top and bottom of the base plate, respectively.

[0010] In one embodiment, two clamping plates extending along the width direction are further provided on the side of the side plate facing away from the slot. The two clamping plates are spaced apart along the length direction of the transformer core, and the two clamping plates abut against the opposite sides of the transformer core along the length direction.

[0011] In one embodiment, two lead wire supports are provided at intervals along the length of the transformer core on the top of the low-voltage upper clamp.

[0012] This utility model also proposes a clamping mechanism for a transformer, wherein the clamping mechanism utilizes a low-voltage upper clamp as described above for the transformer; wherein the clamping mechanism includes an upper clamping assembly and a lower clamping assembly, the upper clamping assembly clamping the high-voltage outlet and the low-voltage outlet on one end of the transformer core, and the lower clamping assembly clamping the other end of the transformer core; the upper clamping assembly includes a high-voltage upper clamp and a low-voltage upper clamp connected to each other, and the high-voltage upper clamp and the low-voltage upper clamp respectively clamp the high-voltage side and the low-voltage side.

[0013] In one embodiment, the lower clamping assembly includes a high-pressure lower clamp and a low-pressure lower clamp connected to each other, wherein the high-pressure lower clamp and the low-pressure lower clamp are respectively clamped on the high-pressure side and the low-pressure side;

[0014] The high-voltage upper clamp is also connected to the high-voltage lower clamp via a first connector, and the low-voltage upper clamp is also connected to the low-voltage lower clamp via a second connector.

[0015] In one embodiment, the high-pressure upper clamp, the low-pressure upper clamp, the high-pressure lower clamp, and the low-pressure lower clamp are all channel steel.

[0016] This utility model also proposes a transformer, wherein the transformer uses the clamping mechanism of the transformer as described above.

[0017] The low-voltage upper clamp of this invention is located on the low-voltage side of the transformer core and is used to cooperate with the high-voltage upper clamp located on the high-voltage side of the transformer core to clamp the transformer core. By providing notches on the side plate of the low-voltage upper clamp corresponding to the positions of each low-voltage outlet, and placing a non-magnetic plate within each notch, the positions of the low-voltage outlets correspond to the positions of the non-magnetic plates. Because the non-magnetic plates have low permeability, the heat generated between the low-voltage outlets and the non-magnetic plates due to electromagnetic induction is reduced when the current is too high. This reduces losses during transformer operation and helps ensure the safe and stable operation of the transformer. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a front view schematic diagram of a portion of the structure of a transformer provided in an embodiment of the present invention.

[0020] Figure 2 This is a top view schematic diagram of a portion of the structure of a transformer provided in an embodiment of the present invention.

[0021] Figure 3 A front view schematic diagram of a low-pressure upper clamp provided in an embodiment of the present utility model;

[0022] Figure 4 A top view schematic diagram of a low-pressure upper clamp provided in an embodiment of the present utility model;

[0023] Figure 5 This is a cross-sectional schematic diagram of a low-pressure upper clamp provided in an embodiment of the present invention.

[0024] Explanation of icon numbers:

[0025] 100. Low-pressure upper clamp; 1. Top plate; 2. Side plate; 3. Bottom plate; 4. Groove; 5. Notch; 51. First through hole; 52. Second through hole; 6. Non-magnetic plate; 61. First connecting plate; 62. Second connecting plate; 7. Lead wire bracket; 8. First reinforcing plate; 9. Clamping plate;

[0026] 200. Transformer core; 201. Low-voltage lower clamp; 202. High-voltage upper clamp; 2021. Second reinforcing plate; 203. High-voltage side; 204. Low-voltage side; 205. Strap;

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] 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 scope of protection of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] This utility model proposes a low-voltage upper clamp 100 for a transformer.

[0032] Please see Figure 1 and Figure 2 It should be noted that the transformer includes a transformer core 200 and a low-voltage coil and a high-voltage coil wound on the transformer core 200. The two opposite sides of the transformer core 200 along its width direction are the low-voltage side 204 and the high-voltage side 203, respectively. The low-voltage output of the low-voltage coil and the high-voltage output of the high-voltage coil are located on the low-voltage side 204 and the high-voltage side 203, respectively.

[0033] Please see Figure 1 ,and Figure 3In one embodiment of this utility model, the low-voltage upper clamp 100 of the transformer is located on the low-voltage side 204. The low-voltage upper clamp 100 has a top plate 1, a side plate 2 and a bottom plate 3 connected in sequence. The top plate 1, the side plate 2 and the bottom plate 3 form a groove 4 with the slot facing away from the transformer core 200. The slot is opposite to the side plate 2. The top plate 1 is close to the top of the transformer core 200, and the side of the side plate 2 facing away from the slot abuts against the transformer core 200. The side plate 2 has notches 5 at the positions of each low-voltage output terminal on the low-voltage side 204, and the notches 5 extend to the bottom plate 3. A non-magnetic plate 6 is provided in the notch 5 to seal the notch 5.

[0034] The low-voltage upper clamp 100 of this utility model is located on the low-voltage side 204 of the transformer core 200 and is used to cooperate with the high-voltage upper clamp 202 located on the high-voltage side 203 of the transformer core 200 to clamp the transformer core 200. It can be understood that by opening notches 5 on the side plate 2 of the low-voltage upper clamp 100 corresponding to the positions of each low-voltage outlet, and setting a non-magnetic plate 6 in the notches 5, the low-voltage outlet and the non-magnetic plate 6 are positioned to correspond. Since the non-magnetic plate 6 has a low magnetic permeability, the heat generated between the low-voltage outlet and the non-magnetic plate 6 due to electromagnetic induction when the current is too large is reduced, thereby reducing the loss during transformer operation and helping to ensure the safe and stable operation of the transformer.

[0035] Understandably, since the low-voltage output of the transformer extends upwards, the base plate 3 and the side plate 2 are closest to the low-voltage output. Therefore, by opening a notch 5 extending to the base plate 3 only in the side plate 2, the amount of non-magnetic plate 6 used can be greatly reduced, saving costs.

[0036] like Figure 1 and Figure 2 As shown, the width direction of the transformer core 200 is the front-to-back direction, the length direction of the transformer core 200 is the left-to-right direction, and the height direction of the transformer core 200 is the up-to-down direction.

[0037] In one specific embodiment, the top plate 1, the side plate 2, and the bottom plate 3 are integrally formed, thereby making the low-pressure upper clamp 100 more structurally stable and reliable; specifically, in this embodiment, the low-pressure upper clamp 100 is a channel steel.

[0038] Furthermore, the non-magnetic plate 6 is disposed within the notch 5 and connected to the inner wall of the notch 5, thereby achieving a seamless connection between the non-magnetic plate 6 and the inner wall of the notch 5. This helps to ensure the stability of the non-magnetic plate 6 and extend its service life.

[0039] Specifically, the shape of the non-magnetic plate 6 matches the shape of the notch 5.

[0040] In one embodiment, the non-magnetic plate 6 is connected to the inner wall of the notch 5 by welding.

[0041] Please combine Figure 3 and Figure 5 In one embodiment, the notch 5 includes a first through hole 51 and a second through hole 52 that are interconnected. The first through hole 51 is opened in the side plate 2 and extends upward from the bottom of the side plate 2. The second through hole 52 is opened in the bottom plate 3 and extends towards the slot from the end where the bottom plate 3 is connected to the side plate 2. The non-magnetic plate 6 includes a first connecting plate 61 and a second connecting plate 62 that are interconnected. The first connecting plate 61 is disposed in the first through hole 51 and blocks the first through hole 51. The second connecting plate 62 is disposed in the second through hole 52 and blocks the second through hole 52.

[0042] Understandably, the notch 5 is designed as an interconnected first through hole 51 and second through hole 52, and sealed with a first connecting plate 61 and a second connecting plate 62 of corresponding shapes, making the entire structure more compact and stable. Furthermore, since the base plate 3 and side plate 2 are closer to the low-voltage output terminal, the first connecting plate 61 and the second connecting plate 62 can effectively prevent electromagnetic induction and heat generation near the non-magnetic plate 6 when the current at the low-voltage output terminal is too high, thereby effectively reducing transformer losses.

[0043] In one embodiment, the first through hole 51 extends upward from the bottom of the side plate 2 to a position near the top plate 1, and the second through hole 52 extends from the end of the bottom plate 3 connected to the side plate 2 toward the slot to a position near the slot. Understandably, the extension direction of the first through hole 51 is basically consistent with the extension direction of the low-voltage output head, which better corresponds to the low-voltage output head. Furthermore, both the first through hole 51 and the second through hole 52 extend a certain distance, thereby better avoiding electromagnetic induction around the low-voltage output head, reducing transformer losses, and also facilitating the installation of the non-magnetic plate 6.

[0044] In one embodiment, the first connecting plate 61 is flush with the opposite sides of the side plate 2 along the width direction, and the top and bottom of the second connecting plate 62 are flush with the top and bottom of the base plate 3, respectively. It can be understood that by aligning the first connecting plate 61 with the side plate 2 and the second connecting plate 62 with the base plate 3, a tighter connection between the non-magnetic plate 6 and the side plate 2 and base plate 3 can be ensured, resulting in better structural stability, a neater appearance, and reduced cost of the non-magnetic plate 6.

[0045] Please see Figure 2 and Figure 4 In one embodiment, two clamping plates 9 extending in the width direction are also provided on the side of the side plate 2 facing away from the slot. The two clamping plates 9 are spaced apart along the length direction of the transformer core 200, and the two clamping plates 9 respectively abut against the opposite sides of the transformer core 200 along the length direction.

[0046] Understandably, by providing two clamping plates 9 on the side plate 2 to abut against the opposite sides of the transformer core 200 along its length, the clamping stability between the low-voltage upper clamp 100 and the transformer core 200 can be significantly improved. This helps ensure that the transformer core 200 remains stable during transformer operation, especially when subjected to vibration or external forces, reducing noise or other faults caused by loosening of the transformer core 200.

[0047] Please continue reading. Figure 3 In one embodiment, two lead wire supports 7 are provided at intervals along the length of the transformer core 200 on the top of the low-voltage upper clamp 100. It can be understood that by providing lead wire supports 7 on the top of the low-voltage upper clamp 100, a stable support point can be provided for the low-voltage output of the transformer; this helps to ensure the stability and reliability of the electrical connection and reduces the risk of poor contact or open circuit caused by vibration or external force.

[0048] Please continue reading. Figure 1 and Figure 2 This utility model also proposes a clamping mechanism for a transformer, which utilizes the low-voltage upper clamp 100 of the transformer as described above. The specific structure of the low-voltage upper clamp 100 is as described in the above embodiments. Since the clamping mechanism of the transformer adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The transformer includes a transformer core 200 and a low-voltage coil and a high-voltage coil wound on the transformer core 200. The low-voltage side 204 and the high-voltage side 203 are located on opposite sides along the width direction of the transformer core 200, respectively. The low-voltage output of the low-voltage coil and the high-voltage output of the high-voltage coil are located on the low-voltage side 204 and the high-voltage side 203, respectively.

[0049] Furthermore, the clamping mechanism includes an upper clamping assembly and a lower clamping assembly. The upper clamping assembly clamps the high-voltage outlet and the low-voltage outlet on one end of the transformer core 200, and the lower clamping assembly clamps the other end of the transformer core 200. The upper clamping assembly includes a high-voltage upper clamp 202 and a low-voltage upper clamp 100 connected to each other, and the high-voltage upper clamp 202 and the low-voltage upper clamp 100 clamp the high-voltage side 203 and the low-voltage side 204, respectively.

[0050] Understandably, the clamping mechanism in this embodiment clamps the upper and lower ends of the transformer core 200 respectively through the upper clamping component and the lower clamping component, which can maintain the overall structural stability of the transformer. The high voltage upper clamp 202 and the low voltage upper clamp 100 are connected to each other to maintain relative stability and achieve better clamping effect.

[0051] Specifically, the high-voltage upper clamp 202 and the low-voltage upper clamp 100 are connected by a screw, and the length of the screw is greater than the width of the transformer core 200.

[0052] In one embodiment, the lower clamping assembly includes a high-voltage lower clamp and a low-voltage lower clamp 201 connected to each other, with the high-voltage lower clamp and the low-voltage lower clamp 201 clamping the high-voltage side 203 and the low-voltage side 204 respectively; the high-voltage upper clamp 202 is also connected to the high-voltage lower clamp via a first connector, and the low-voltage upper clamp 100 is also connected to the low-voltage lower clamp 201 via a second connector.

[0053] Understandably, the low-voltage upper clamp 100 and low-voltage lower clamp 201 located on the low-voltage side 204 are interconnected, and the high-voltage upper clamp 202 and high-voltage lower clamp located on the high-voltage side 203 are interconnected, which further improves relative stability, provides better clamping effect, and is more conducive to maintaining the stability of the transformer.

[0054] Specifically, the high-pressure clamp and the low-pressure clamp 201 are also connected by screws, resulting in better connection stability.

[0055] Specifically, the high-pressure upper clamp 202, the low-pressure upper clamp 100, the high-pressure lower clamp, and the low-pressure lower clamp 201 are all channel steel.

[0056] Understandably, channel steel has the advantages of high mechanical strength and rigidity, which can provide strong structural support for transformers. This helps transformers resist the effects of external shocks, vibrations and internal electromagnetic forces, ensuring that transformers remain stable during operation and reducing failures caused by structural problems.

[0057] It should be noted that, except for the absence of the notch 5 and the non-magnetic plate 6, the high-pressure upper clamp 202, the high-pressure lower clamp, and the low-pressure lower clamp 201 have the same structure as the low-pressure upper clamp 100, all including a top plate 1, a side plate 2, and a bottom plate 3. Therefore, the side plate 2 of the low-pressure upper clamp 100 is connected to the side plate 2 of the high-pressure upper clamp 202 by screws. Each side plate 2 is also connected to a screw channel steel on the side facing the slot. Each screw channel steel has a through hole. The screw channel steel of the high-pressure upper clamp 202 and the screw channel steel of the high-pressure lower clamp are connected by screws, and the screw channel steel of the low-pressure upper clamp 100 and the screw channel steel of the low-pressure lower clamp 201 are also connected by screws.

[0058] In one embodiment, the top of the low-pressure upper clamp 100 and the high-pressure upper clamp 202 are respectively provided with a first reinforcing plate 8 and a second reinforcing plate 2021. The number of the first reinforcing plates 8 and the second reinforcing plates 2021 are the same and they are arranged in a one-to-one correspondence. A pull strap 205 connects each first reinforcing plate 8 and the corresponding second reinforcing plate 2021.

[0059] Understandably, by setting a first reinforcing plate 8 and a second reinforcing plate 2021, and connecting a pull strap 205 between the first reinforcing plate 8 and the corresponding second reinforcing plate 2021, the clamping effect can be further improved by tightening the high-pressure upper clamp 202 and the low-pressure upper clamp 100.

[0060] This utility model also proposes a transformer that uses the clamping mechanism described above. The specific structure of the clamping mechanism is as described in the above embodiments. Since this transformer adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0061] The transformer includes a transformer core 200 and a low-voltage coil and a high-voltage coil wound on the transformer core 200. The transformer core 200 has a low-voltage side 204 and a high-voltage side 203 on opposite sides along its width. The low-voltage output of the low-voltage coil and the high-voltage output of the high-voltage coil are located on the low-voltage side 204 and the high-voltage side 203, respectively. The clamping mechanism includes an upper clamping assembly and a lower clamping assembly. The upper clamping assembly clamps the high-voltage output and the low-voltage output on one end of the transformer core 200, and the lower clamping assembly clamps the other end of the transformer core 200. The upper clamping assembly includes a high-voltage upper clamp 202 and a low-voltage upper clamp 100 connected to each other, and the high-voltage upper clamp 202 and the low-voltage upper clamp 100 clamp the high-voltage side 203 and the low-voltage side 204, respectively.

[0062] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A low-voltage upper clamp for a transformer, characterized in that, The transformer includes a transformer core and a low-voltage coil and a high-voltage coil wound on the transformer core. The transformer core has a low-voltage side and a high-voltage side on opposite sides along its width direction. The low-voltage output of the low-voltage coil and the high-voltage output of the high-voltage coil are located on the low-voltage side and the high-voltage side, respectively. The low-voltage upper clamp is located on the low-voltage side. The low-voltage upper clamp has a top plate, a side plate, and a bottom plate connected in sequence. The top plate, the side plate, and the bottom plate form a groove with the opening facing away from the transformer core. The groove is opposite to the side plate. The top plate is close to the top of the transformer core, and the side plate facing away from the groove abuts against the transformer core. The side plate has notches corresponding to the positions of each low-voltage output terminal on the low-voltage side, and the notches extend to the bottom plate. A non-magnetic plate is provided in the notch to seal the notch.

2. The low-voltage upper clamp of the transformer as described in claim 1, characterized in that, The notch includes a first through hole and a second through hole that are interconnected. The first through hole is opened in the side plate and extends upward from the bottom of the side plate. The second through hole is opened in the bottom plate and extends from the end of the bottom plate connected to the side plate toward the slot. The non-magnetic plate includes a first connecting plate and a second connecting plate that are connected to each other. The first connecting plate is disposed in the first through hole and blocks the first through hole, and the second connecting plate is disposed in the second through hole and blocks the second through hole.

3. The low-voltage upper clamp of the transformer as described in claim 2, characterized in that, The first through hole extends upward from the bottom of the side plate to a position close to the top plate, and the second through hole extends from the end where the bottom plate is connected to the side plate toward the slot to a position close to the slot.

4. The low-voltage upper clamp of the transformer as described in claim 2, characterized in that, The first connecting plate is flush with the opposite sides of the side plate along the width direction on both sides, and the top and bottom of the second connecting plate are flush with the top and bottom of the base plate, respectively.

5. The low-voltage upper clamp of the transformer as described in any one of claims 1 to 4, characterized in that, Two clamping plates extending along the width direction are also provided on the side of the side plate facing away from the slot. The two clamping plates are spaced apart along the length direction of the transformer core, and the two clamping plates abut against the opposite sides of the transformer core along the length direction.

6. The low-voltage upper clamp of the transformer as described in any one of claims 1 to 4, characterized in that, Two lead wire supports are spaced apart at the top of the low-voltage upper clamp along the length of the transformer core.

7. A clamping mechanism for a transformer, characterized in that, The clamping mechanism utilizes a low-voltage upper clamp of the transformer as described in any one of claims 1 to 6; wherein the clamping mechanism includes an upper clamping assembly and a lower clamping assembly, the upper clamping assembly clamping one end of the transformer core where the high-voltage outlet and the low-voltage outlet are located, and the lower clamping assembly clamping the other end of the transformer core; the upper clamping assembly includes a high-voltage upper clamp and a low-voltage upper clamp connected to each other, and the high-voltage upper clamp and the low-voltage upper clamp respectively clamp the high-voltage side and the low-voltage side.

8. The clamping mechanism for the transformer as described in claim 7, characterized in that, The lower clamping assembly includes a high-pressure lower clamp and a low-pressure lower clamp connected to each other, wherein the high-pressure lower clamp and the low-pressure lower clamp are respectively clamped on the high-pressure side and the low-pressure side; The high-voltage upper clamp is also connected to the high-voltage lower clamp via a first connector, and the low-voltage upper clamp is also connected to the low-voltage lower clamp via a second connector.

9. The clamping mechanism for the transformer as described in claim 7, characterized in that, The high-pressure upper clamp, the low-pressure upper clamp, the high-pressure lower clamp, and the low-pressure lower clamp are all channel steel.

10. A transformer, characterized in that, The transformer is equipped with a clamping mechanism as described in any one of claims 7 to 9.