A riveted high voltage transformer

Abstract

The present application relates to a kind of riveting high voltage transformer, belong to transformer technical field, including transformer shell, transformer shell is stacked by several transformer pieces, transformer shell is equipped with several slot groups, several slot groups are arranged and distributed on transformer shell, slot group includes riveting slot hole, several connecting slot holes and several connecting screws, several connecting slot holes are set on transformer shell around the central axis direction of riveting slot hole equiangularly, connecting slot hole is set to riveting slot hole side, several connecting screws and several connecting slot holes are one-to-one corresponding matching, any connecting screw is set in corresponding connecting slot hole, riveting slot hole is used for rivet to rivet the connection of several transformer pieces, connecting screw is used to limit the deformation degree of riveting slot hole.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of transformers, and particularly relates to a riveting high-voltage transformer. BACKGROUND

[0002] During the working process of a transformer, induced eddy current is generated; the existence of the induced eddy current causes the loss of the transformer to increase exponentially, therefore, in order to improve the blocking capacity of the induced eddy current, the existing transformer is formed by stacking a plurality of silicon steel sheets; at the same time, in order to ensure the connection strength between the plurality of silicon steel sheets, the plurality of silicon steel sheets are connected by riveting.

[0003] The riveting structure of the existing transformer has some problems: after the plurality of silicon steel sheets are stacked, a clamping structure is first used to clamp and position the stacked silicon steel sheets, and then a rivet is used to rivet and connect the plurality of silicon steel sheets; however, since the expansion end of the rivet is bent during the riveting process, this condition causes the slot hole diameter of the silicon steel sheet closest to the expansion end of the rivet to be greatly deformed; in addition, the transformer of the present application is used in a severe vibration environment, which causes the silicon steel sheet closest to the expansion end of the rivet to start to vibrate after the transformer is used for a period of time due to the great deformation of the slot hole diameter thereof, thereby reducing the service life of the transformer. SUMMARY

[0004] In order to solve the defects of the riveting structure of the existing transformer and the problem of reducing the service life of the transformer, the present application provides a riveting high-voltage transformer.

[0005] The purpose of the present application can be achieved by the following technical solutions:

[0006] A riveting high-voltage transformer, comprising a transformer shell, the transformer shell is stacked by a plurality of transformer sheets, the transformer shell is provided with a plurality of slot hole groups, the plurality of slot hole groups are arranged and distributed on the transformer shell, the slot hole group comprises a riveting slot hole, a plurality of connecting slot holes and a plurality of connecting screws, the plurality of connecting slot holes are arranged on the transformer shell at equal angles around the central axis direction of the riveting slot hole, the connecting slot hole is arranged beside the riveting slot hole, the plurality of connecting screws are matched with the plurality of connecting slot holes one by one, any connecting screw is arranged in the corresponding connecting slot hole, the riveting slot hole is used for riveting and connecting the plurality of transformer sheets by a rivet, and the connecting screw is used for limiting the deformation degree of the riveting slot hole.

[0007] As a preferred technical solution of the present application, the connecting screw and the connecting slot hole are coated with industrial soft glue at the connection position.

[0008] As a preferred technical scheme of the present application, the transformer shell is provided with a placing slot hole, the low-voltage assembly and the high-voltage assembly are coaxially sleeved on both ends of the iron core, and the matched iron core is arranged in the transformer shell through the placing slot hole.

[0009] As a preferred technical scheme of the present application, the transformer shell is provided with a placing slot hole, the low-voltage assembly and the high-voltage assembly are coaxially sleeved on both ends of the iron core, and the matched iron core is arranged in the transformer shell through the placing slot hole.

[0010] As a preferred technical scheme of the present application, the high-voltage assembly comprises a high-voltage shell, a high-voltage framework and a high-voltage coil, the high-voltage coil is wound on the high-voltage framework, the high-voltage shell is provided with a high-voltage slot hole, the high-voltage framework is coaxially arranged in the high-voltage shell through the high-voltage slot hole, and the high-voltage shell is further provided with a communication slot hole.

[0011] As a preferred technical scheme of the present application, the high-voltage framework comprises a hollow high-voltage shaft and a plurality of high-voltage mounting blocks, the high-voltage shaft is coaxially arranged in the high-voltage shell, and the plurality of high-voltage mounting blocks are equidistantly and detachably arranged on the high-voltage shaft along the axis direction of the high-voltage shaft; the high-voltage mounting block is coaxially provided with two winding slots, and the two winding slots are symmetrically arranged on the outer side walls of both ends of the high-voltage mounting block; the high-voltage coil is provided with a plurality of high-voltage coils, and the plurality of high-voltage coils are one-to-one matched with the plurality of high-voltage mounting blocks, and any high-voltage coil is alternately wound in the two winding slots.

[0012] As a preferred technical scheme of the present application, the outer side wall of the high-voltage mounting block is provided with a through slot, the through slot is in communication with the two winding slots, and the high-voltage coil is alternately wound in the two winding slots through the through slot.

[0013] As a preferred technical scheme of the present application, the high-voltage mounting block and the high-voltage shaft jointly form a filling space, the high-voltage mounting block is provided with two annular first circular grooves, the two first circular grooves are correspondingly matched with the two winding slots, any first circular groove is located at the bottom of the corresponding winding slot close to the through slot, and the first circular groove is in communication with the filling space.

[0014] As a preferred technical scheme of the present application, the high-voltage shaft is provided with a plurality of filling holes, the plurality of filling holes are arranged in the high-voltage shaft along the central axis of the high-voltage shaft at equal angles, the plurality of filling holes and the plurality of filling spaces are one-to-one corresponding and matched, one end of any filling hole is in communication with the corresponding filling space, and the other end of the filling hole is in communication with the end face of the high-voltage shaft.

[0015] As a preferred technical scheme of the present application, the distance between the filling space and the central axis of the high-voltage shaft is greater than the distance between the filling hole and the central axis of the high-voltage shaft.

[0016] The present application has the following beneficial effects:

[0017] By being provided with the connecting screw, since the plurality of connecting grooves are arranged on the transformer shell around the central axis direction of the riveting groove at equal angles, when the connecting screw is arranged in the corresponding connecting groove, the structural strength of the position and the positions near the position is enhanced, thereby achieving the enhancement of the structural strength near the riveting groove, when the rivet is riveted and connected to the plurality of transformer sheets, the expansion end of the rivet cannot cause excessive deformation to the groove diameter of the silicon steel sheet closest to the expansion end of the rivet, and thus the transformer shell will not be loose after being used for a period of time. Therefore, such a setting can improve the service life of the transformer. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to facilitate the understanding of those skilled in the art, the present application will be further described below with reference to the accompanying drawings.

[0019] Figure 1 is a whole assembly drawing of a riveted high-voltage transformer of the present application;

[0020] Figure 2 is a transformer shell and iron core matching drawing of a riveted high-voltage transformer of the present application;

[0021] Figure 3 is a whole assembly drawing of a high-voltage assembly of a riveted high-voltage transformer of the present application;

[0022] Figure 4 is a high-voltage shell structure drawing of a riveted high-voltage transformer of the present application;

[0023] Figure 5 is a high-voltage framework structure drawing of a riveted high-voltage transformer of the present application;

[0024] Figure 6 is a high-voltage mounting block structure drawing of a riveted high-voltage transformer of the present application;

[0025] Figure 7 is a high-voltage mounting block partial sectional view of a riveted high-voltage transformer of the present application;

[0026] Figure 8 For the application Figure 7 of A is an enlarged view;

[0027] Figure 9 For the application is a high voltage installation block of riveting high voltage transformer elevation view.

[0028] Main symbol explanation

[0029] In the figure: 1, transformer shell; 101, transformer sheet; 102, riveting slot hole; 103, connecting slot hole; 104, connecting screw; 2, iron core; 3, low voltage assembly; 4, limiting assembly; 401, limiting plate; 402, limiting rivet; 5, high voltage shell; 501, high voltage slot hole; 502, connecting slot hole; 503, injection hole; 6, high voltage framework; 601, high voltage shaft; 6011, filling space; 6012, filling hole; 602, high voltage installation block; 6021, winding slot; 6022, through slot; 6023, first circular slot; 6024, second circular slot; 6025, fit space; 6026, fit hole; 7, limiting block; 701, limiting half block. DETAILED DESCRIPTION

[0030] In order to further illustrate the technical means and effects taken by the present application to achieve the predetermined object of the application, the specific embodiments, structures, features and effects according to the present application are described in detail below in combination with the drawings and preferred embodiments.

[0031] Please refer to Figures 1-9The embodiment provides a riveting high-voltage transformer which comprises a transformer shell 1, the transformer shell 1 is stacked by a plurality of transformer sheets 101, the transformer shell 1 is provided with a plurality of slot hole groups, the plurality of slot hole groups are arranged and distributed on the transformer shell 1, the slot hole group comprises a riveting slot hole 102, a plurality of connecting slot holes 103 and a plurality of connecting screws 104, the plurality of connecting slot holes 103 are arranged on the transformer shell 1 at equal angles around the central axis direction of the riveting slot hole 102, the connecting slot hole 103 is arranged beside the riveting slot hole 102, the plurality of connecting screws 104 are matched with the plurality of connecting slot holes 103 one by one, any connecting screw 104 is arranged in the corresponding connecting slot hole 103, the riveting slot hole 102 is used for riveting connection of the plurality of transformer sheets 101, and the connecting screw 104 is used for limiting the deformation degree of the riveting slot hole. Through the arrangement of the connecting screw 104, when the connecting screw 104 is arranged in the corresponding connecting slot hole 103, the structural strength of the position and the positions near the position can be enhanced, the structural strength near the riveting slot hole 102 is enhanced, when the rivet is used for riveting connection of the plurality of transformer sheets 101, the expansion end of the rivet cannot cause excessive deformation of the slot hole diameter of the silicon steel sheet closest to the expansion end of the rivet, and the transformer shell 1 cannot be loose after being used for a period of time, therefore, the working life of the transformer can be prolonged, and the problem that the existing transformer is subjected to riveting treatment, the rivet causes large deformation of the slot hole diameter of the silicon steel sheet closest to the expansion end of the rivet, the transformer is used in a severe vibration environment, the silicon steel sheet closest to the expansion end of the rivet is subjected to large deformation of the slot hole diameter after being used for a period of time, the silicon steel sheet starts to vibrate continuously, and the working life of the transformer is reduced is solved.

[0032] It is worth noting that the rivet includes a coaxially connected connecting end and an expanding end, the rivet is arranged in the riveting slot hole 102, and the expanding end extends out of the transformer shell 1. When it is necessary to rivet and connect the transformer sheets 101 by using the rivet, the expanding end of the rivet needs to be expanded, so that the rivet cannot change the position relative to the transformer sheets 101, thereby limiting the movement of the transformer sheets 101, and realizing the riveting of the transformer sheets 101. However, in the actual working process of the rivet, the expanding end of the rivet expands and bends at one end at the same time, which can cause the expanding end of the rivet to deform the riveting slot hole 102 of the transformer sheet 101 closest to the expanding end of the rivet during the bending of the expanding end of the rivet. Once the deformation degree of the transformer sheet 101 is too large, cracks can occur near the deformed position of the transformer sheet 101. In addition, the transformer of the present scheme is used in a severe vibration environment, which can cause the cracks of the transformer sheet 101 to become larger after the transformer is used for a long time, thereby causing the transformer sheet 101 to move relative to the remaining transformer sheets 101, and finally causing the transformer sheets 101 to be scattered, thereby reducing the service life of the transformer.

[0033] The bolt-rivet connection system of the present scheme enhances the structural strength around the riveting slot hole 102, inhibits the generation of cracks during the riveting of the transformer sheets 101, and thereby enhances the structural strength of the transformer and increases the service life of the transformer.

[0034] Further, in order to ensure that the connecting screw 104 of the present scheme is stably arranged in the transformer shell 1, industrial soft glue is applied to the connection between the connecting screw 104 and the connecting slot hole 103 to fix the position of the connecting screw 104 and ensure that the relative position of the connecting screw 104 and the connecting slot hole 103 does not change. It is worth noting that the present scheme also uses a nut to threadedly connect with the connecting screw 104, and industrial soft glue is applied to the connection between the nut and the connecting screw 104 to further enhance the connection between the connecting screw and the transformer shell 1.

[0035] Further, the present scheme further includes an iron core 2, a low-voltage assembly 3, and a high-voltage assembly. The transformer shell 1 is provided with a placing slot hole. The low-voltage assembly 3 and the high-voltage assembly are coaxially arranged at both ends of the iron core 2. The matched iron core 2 is arranged in the transformer shell 1 through the placing slot hole. The thickness of the iron core 2 is equal to the thickness of the transformer shell 1. The placing slot hole can enable the matched iron core 2 to be smoothly placed in the placing slot hole, thereby realizing the cooperation between the iron core 2 and the transformer shell 1.

[0036] In addition, it should be noted that the core 2 of the present scheme is also connected by stacking a plurality of core pieces, the number of core pieces is the same as the number of transformer pieces 101, and the thickness of the core pieces is consistent with the thickness of the transformer pieces 101, and the connection mode of the core pieces is consistent with the connection mode of the transformer pieces 101.

[0037] Further, in order to limit the degree of freedom of the core 2 in the transformer shell 1, the present scheme further comprises a limiting assembly 4, the limiting assembly 4 comprises two limiting plates 401 and two limiting rivets 402, the two limiting plates 401 are respectively arranged symmetrically on both sides of the same end of the transformer shell 1, the limiting plate 401 and the transformer are provided with a matching groove hole, the limiting rivet 402 is arranged in the corresponding matching groove hole, and the limiting plate 401 and the transformer shell 1 are riveted and matched, and the projection area of the limiting plate 401 on the surface of the transformer shell 1 is located on the placing groove hole; by arranging the limiting plate 401, since the projection area of the limiting plate 401 on the surface of the transformer shell 1 is located on the placing groove hole, after the riveting connection of the two limiting plates 401 and the transformer shell 1, the two limiting plates 401 can limit the core 2 together, limit the degree of freedom of the core 2, and ensure the cooperation of the core 2 and the transformer shell 1.

[0038] It is worth noting that since the limiting assembly 4 is arranged on one end of the transformer shell 1, it can only limit one end of the core 2; in order to further limit the degree of freedom of the core 2, the limiting assembly 4 of the present scheme is provided with two groups, and the other limiting assembly 4 is symmetrically arranged on the other end of the transformer shell 1, and the two limiting assemblies 4 can limit the two ends of the core 2 together.

[0039] Further, the high-voltage assembly of the present scheme comprises a high-voltage shell 5, a high-voltage framework 6 and a high-voltage coil, the high-voltage coil is wound on the high-voltage framework 6, the high-voltage shell 5 is provided with a high-voltage groove hole 501, the high-voltage framework 6 is coaxially placed in the high-voltage shell 5 through the high-voltage groove hole 501, and the high-voltage shell 5 is also provided with a communication groove hole 502, and the high-voltage shell 5 is coaxially arranged on one end of the core 2 through the communication groove hole 502; by arranging the high-voltage shell 5, the communication groove hole 502 of the high-voltage shell 5 can realize the coaxial arrangement of the high-voltage assembly on one end of the core 2; and the high-voltage groove hole 501 of the high-voltage shell 5 is used for placing the high-voltage framework 6 and the high-voltage coil wound on the high-voltage framework 6.

[0040] According to the description of the above embodiment, in order to ensure the effect of winding the high-voltage coil on the high-voltage framework 6, the high-voltage framework 6 comprises a hollow high-voltage shaft 601 coaxially arranged in the high-voltage shell 5 and a plurality of high-voltage mounting blocks 602 equidistantly arranged on the high-voltage shaft 601 along the axial direction of the high-voltage shaft 601, and the high-voltage mounting block 602 is detachably arranged on the high-voltage shaft 601; the high-voltage mounting block 602 coaxially has two winding grooves 6021 symmetrically arranged on the outer side walls of the two ends of the high-voltage mounting block 602; the high-voltage coil is provided with a plurality of high-voltage coils corresponding to the plurality of high-voltage mounting blocks 602, and any high-voltage coil is alternately wound in the two winding grooves 6021; by arranging the high-voltage mounting block 602 with the winding groove 6021, the high-voltage coil is wound in the winding groove 6021, thereby realizing the arrangement of the high-voltage coil in the corresponding high-voltage mounting block 602; it is worth noting that the high-voltage framework 6 is composed of the high-voltage shaft 601 and the plurality of high-voltage mounting blocks 602, and in actual production, high-voltage frameworks 6 of different lengths are divided into high-voltage shafts 601 of different lengths and high-voltage mounting blocks 602 of the same specification for production, which can speed up the production speed and efficiency of the high-voltage framework 6; at the same time, winding a single high-voltage coil in the corresponding high-voltage mounting block 602 can avoid the mutual contact of adjacent high-voltage coils, thereby avoiding the short circuit.

[0041] According to the description of the above embodiment, in order to further improve the effect of winding the high-voltage coil in the winding groove 6021, the outer side wall of the high-voltage mounting block 602 is provided with a through groove 6022, the through groove 6022 is in communication with the two winding grooves 6021 respectively, and the high-voltage coil is alternately wound in the two winding grooves 6021 by using the through groove 6022; it is worth noting that the high-voltage coil of the present scheme is wound one turn in one winding groove 6021, then moved to the other winding groove 6021 by using the through groove 6022 to wind one turn, and then moved to the original winding groove 6021 by using the through groove 6022 to wind one turn, and so on, thereby realizing the alternately winding of the high-voltage coil in the two winding grooves 6021.

[0042] It is worth noting that when the high-voltage coil is completely wound on the high-voltage framework 6, the high-voltage framework 6 and the high-voltage coil wound thereon are placed in the high-voltage shell 5 together, and then in order to fix the cooperation of the high-voltage framework 6 and the high-voltage coil and to fix the cooperation of the high-voltage framework 6 and the high-voltage shell 5, the present scheme uses epoxy resin to perform the potting treatment towards the high-voltage groove hole 501 in the high-voltage shell 5, thereby realizing the fixed cooperation of the high-voltage framework 6 and the high-voltage shell 5 and the high-voltage framework 6 and the high-voltage coil.

[0043] However, it is worth noting that in the actual pouring process, due to the viscosity of the epoxy resin, the flowability of the epoxy resin is not high, and in addition, the high-voltage coil is wound in the winding groove 6021 by the through groove 6022, which causes the epoxy resin to be unable to completely fill the winding groove 6021. Specifically, the space at the bottom of the winding groove 6021 near the through groove 6022 is often not filled with epoxy resin, which is defined as the first space. Since the first space is not filled with epoxy resin, when the high-voltage coil works in a high-frequency vibration environment, the high-voltage coil will deform towards the first space due to the action of vibration, which will change the shape of the high-voltage coil wound in the high-voltage mounting block 602, thereby affecting the output power of the high-voltage transformer, and causing the high-voltage transformer to be unable to work stably. Based on this, in order to solve this problem, the high-voltage mounting block 602 and the high-voltage shaft 601 jointly form a filling space 6011, the high-voltage mounting block 602 is provided with two annular first circular grooves 6023, and the two first circular grooves 6023 are respectively matched with the two winding grooves 6021. Any first circular groove 6023 is located at the bottom of the corresponding winding groove 6021 near the through groove 6022, that is, any first circular groove 6023 and the corresponding first space are in communication with each other, and the first circular groove 6023 and the filling space 6011 are in communication with each other. By pouring epoxy resin into the filling space 6011, the epoxy resin will be filled in the filling space 6011, and then will flow into the first space through the first circular groove 6023 to realize the filling of the first space. Through such a setting, the epoxy resin is filled in the first space, avoiding the problem that the high-voltage coil will deform towards the first space due to the action of vibration, which will change the shape of the high-voltage coil wound in the high-voltage mounting block 602, thereby affecting the output power of the high-voltage transformer. At the same time, the epoxy resin filled in the filling space 6011 can further increase the connection strength between the high-voltage mounting block 602 and the high-voltage shaft 601.

[0044] Further, in order to realize that the epoxy resin is filled in the filling space 6011, the high-voltage shaft 601 is provided with a plurality of filling holes 6012, the plurality of filling holes 6012 are arranged in the high-voltage shaft 601 along the central axis of the high-voltage shaft 601 at equal angles, the plurality of filling holes 6012 are matched with the plurality of filling spaces 6011 one by one, one end of any filling hole 6012 is in communication with the corresponding filling space 6011, and the other end of the filling hole 6012 is in communication with the end face of the high-voltage shaft 601; due to the existence of the filling hole 6012, the filling space 6011 and the top end face of the high-voltage shaft 601 are in communication; through such a setting, first, the high-voltage framework 6 is placed in the high-voltage shell 5, then the syringe is used to inject the epoxy resin into the filling hole 6012 on the top end face of the high-voltage shaft 601, the epoxy resin flows into the filling space 6011 through the filling hole 6012, and then flows into the first space from the filling space 6011, so as to realize the filling of the epoxy resin in the first space.

[0045] It should be emphasized that, in order to avoid interference between the setting of the filling hole 6012 and the setting of the filling space 6011, the distance between the filling space 6011 and the central axis of the high-voltage shaft 601 is greater than the distance between the filling hole 6012 and the central axis of the high-voltage shaft 601; through such a setting, the situation that one filling hole 6012 is in communication with a plurality of filling spaces 6011 can be avoided.

[0046] According to the description of the above embodiment, since the high-voltage mounting block 602 is detachably arranged on the high-voltage shaft 601, in order to realize that the high-voltage mounting block 602 is stably arranged in the high-voltage shaft 601, the high-voltage framework 6 further comprises two limiting blocks 7, and the two limiting blocks 7 are arranged on the two ends of the high-voltage shaft 601 respectively; the limiting block 7 comprises two limiting half blocks 701 and a limiting screw, the two limiting half blocks 701 are provided with limiting slot holes respectively, and the limiting slot holes of the two limiting half blocks 701 can jointly form a limiting space matched with the high-voltage shaft 601, the two limiting half blocks 701 are coaxially sleeved on the high-voltage shaft 601 through the limiting space, and then the limiting screw is used to realize the mutual connection of the two limiting half blocks 701. Through the setting of the limiting block 7, the two limiting blocks 7 are coaxially sleeved on the two ends of the high-voltage shaft 601, thereby the position of the high-voltage mounting block 602 on the high-voltage shaft 601 can be preliminarily fixed, specifically, first, one limiting block 7 is coaxially installed at the bottom of the high-voltage shaft 601, then a plurality of high-voltage mounting blocks 602 with high-voltage coils wound thereon are coaxially sleeved on the high-voltage shaft 601 in sequence, the end faces of adjacent two high-voltage mounting blocks 602 are arranged in abutment with each other, and finally, the other limiting block 7 is coaxially installed at the top of the high-voltage shaft 601, thereby the positions of the plurality of high-voltage mounting blocks 602 in the high-voltage shaft 601 are jointly limited by the two limiting blocks 7.

[0047] Further, in order to improve the connection strength between the limiting block 7 and the high-voltage mounting block 602, and the connection strength between two adjacent high-voltage mounting blocks 602, the present scheme forms a fitting space 6025 between the limiting block 7 and the adjacent high-voltage mounting block 602, and also forms a fitting space 6025 between two adjacent high-voltage mounting blocks 602. By pouring epoxy resin into the fitting space 6025, the connection strength between the limiting block 7 and the high-voltage mounting block 602, and the connection strength between two adjacent high-voltage mounting blocks 602 are improved.

[0048] In addition, according to the description of the above-mentioned embodiments, when the epoxy resin is poured into the high-voltage slot hole 501, due to the viscosity of the epoxy resin itself and the winding of the high-voltage coil on the high-voltage framework 6, the gap of the winding slot 6021 located in the high-voltage mounting block 602 is difficult to be filled with epoxy resin. The present scheme is provided with a first circular groove 6023, which is in communication with the first space through the bottom of one end of the through groove 6022 close to the winding slot 6021, that is, the first circular groove 6023 is in communication with the first space, so as to realize the filling of the first space with epoxy resin. However, due to the winding of the high-voltage coil, there is also a gap at the bottom of the other end of the winding slot 6021 away from the through groove 6022. In the present scheme, the bottom of the other end of the winding slot 6021 away from the through groove 6022 is defined as a second space. The first space and the second space are not in communication with each other due to the winding of the high-voltage coil, so the second circular groove 6024 also needs to be filled with epoxy resin. Based on this, the present scheme is also provided with two annular second circular grooves 6024, which are respectively matched with two winding slots 6021. Any second circular groove 6024 is located at the bottom of the other end of the corresponding winding slot 6021 away from the through groove 6022, and the two ends of the second circular groove 6024 are respectively in communication with the second space and the closest fitting space 6025. Through such a setting, when the epoxy resin is poured into the fitting space 6025, the epoxy resin located in the fitting space 6025 will be poured into the second space through the second circular groove 6024, so as to realize the pouring of the second space with epoxy resin. It is worth noting that the filling space 6011 and the fitting space 6025 of the present scheme are both annular groove structures, and the number of the second circular groove 6024, the second space and the fitting space 6025 is the same, and the second circular groove 6024, the second space and the fitting space 6025 are correspondingly matched, and the two ends of any second circular groove 6024 are respectively in communication with the second space and the closest fitting space 6025.

[0049] Further, in order to realize the epoxy resin filling treatment in the bonding space 6025, the present scheme forms a bonding hole 6026 between the side wall of the limiting block 7 and the side wall of the adjacent high-voltage mounting block 602, and also forms a bonding hole 6026 between the side walls of two adjacent high-voltage mounting blocks 602. The bonding holes 6026 correspond to the bonding spaces 6025 one by one, and any bonding hole 6026 and the corresponding bonding space 6025 are in communication with each other. The epoxy resin is filled into the bonding space 6025 through the bonding hole 6026.

[0050] It is worth noting that the bonding hole 6026 of the present scheme can only be arranged in the side wall between the limiting block 7 and the high-voltage mounting block 602, and in the side wall between two high-voltage mounting blocks 602. The specific reason is as follows. According to the description of the above-mentioned embodiment, it can be easily thought that by arranging a slot hole to be in communication with the second circular groove 6024 and the filling space 6011 respectively, the epoxy resin in the filling space 6011 can be filled into the second circular groove 6024 through the slot hole, and then the epoxy resin filling treatment of the second space can be realized. However, in the actual operation process, since the high-voltage coil is wound alternately between the two winding grooves 6021 in the same high-voltage mounting block 602 through the slot 6022, such winding mode makes it difficult for the high-voltage coil to be filled in the first space. Therefore, the epoxy resin can easily flow into the first circular groove 6023 through the filling space 6011, and then the epoxy resin can be filled into the first space through the first circular groove 6023.

[0051] The situation in the second space is different from that in the first space. The high-voltage coil can be directly wound in the second space, that is, the high-voltage coil directly covers the communication part between the second circular groove 6024 and the second space, which reduces the gap of the communication part between the second circular groove 6024 and the second space, and increases the resistance of the epoxy resin filled into the second space through the second circular groove 6024. Therefore, after the epoxy resin is filled into the filling space 6011, the epoxy resin will directly flow into the first circular groove 6023 with smaller resistance, and will not flow into the second circular groove 6024 with larger resistance. Therefore, directly arranging a slot hole to be in communication with the second circular groove 6024 and the filling space 6011 respectively will cause the epoxy resin in the filling space 6011 to be unable to be filled into the second circular groove 6024, and then the epoxy resin cannot realize the filling treatment of the second space.

[0052] In addition, it also needs to be explained that, since the epoxy resin in the filling space 6011 is filled from the filling hole 6012, and the communication between the filling hole 6012 and the high-pressure shaft 601 is located on the top surface of the high-pressure shaft 601, in order to realize the filling of the epoxy resin to the filling space 6011 located at the bottom of the high-pressure shaft 601, the length of the corresponding filling hole 6012 is set to be longer, thereby increasing the resistance of the epoxy resin movement, if the second circular groove 6024 is communicated with the filling space 6011, it will cause the injection pressure required for the epoxy resin to move to the second circular groove 6024 located at the bottom of the high-pressure shaft 601 to be too large to successfully fill the epoxy resin into the second circular groove 6024; therefore, the second circular groove 6024 can only be communicated with the fitting space 6025, and the fitting space 6025 needs to be filled by the fitting hole 6026.

[0053] According to the description of the above embodiment, the high-pressure framework 6 is placed in the high-pressure shell 5 first, and then the syringe filled with epoxy resin is used to inject epoxy resin into the filling hole 6012. The volume of the first space, the first circular groove 6023, the filling space 6011 and the filling hole 6012 is defined as the filling volume, and the volume of the epoxy resin carried by the syringe is greater than the volume of the filling volume, so that when the syringe injects the epoxy resin into the filling hole 6012, the epoxy resin can be filled into the first space. According to the above steps, the syringe is used to inject epoxy resin into each filling hole 6012. After the syringe completes the injection of the epoxy resin into the filling hole 6012, the epoxy resin is filled into the fitting space 6025 from the fitting hole 6026, thereby realizing the filling of the epoxy resin to the second space. Finally, the epoxy resin is filled into the high-pressure groove hole 501, thereby realizing the filling treatment of the high-pressure framework 6 and the high-pressure shell 5.

[0054] It is worth mentioning that, the scheme is to place the high-voltage framework 6 in the high-voltage shell 5 first, and then realize the epoxy resin injection treatment of the fitting hole 6026. Since the fitting hole 6026 is located on the side wall of the high-voltage mounting block 602, that is, the fitting hole 6026 is located on the outer side wall of the high-voltage framework 6, therefore, when the high-voltage framework 6 is placed in the high-voltage shell 5, the epoxy resin cannot be directly injected into the second space through the fitting hole 6026. In order to smoothly realize the epoxy resin injection treatment of the fitting hole 6026, the high-voltage shell 5 of the scheme is also provided with a plurality of injection holes 503. The plurality of injection holes 503 are one-to-one corresponding and matched with the plurality of fitting holes 6026. The center axis direction of any injection hole 503 coincides with the center axis direction of the corresponding fitting hole 6026. The injection hole 503 and the high-voltage groove hole 501 are in communication with each other. Through such a setting, when the high-voltage framework 6 is placed in the high-voltage shell 5, the center axis direction of the injection hole 503 coincides with the center axis direction of the corresponding fitting hole 6026. Then the injection tube of the syringe filled with epoxy resin is inserted into the fitting hole 6026 through the injection hole 503. The volume of the second space, the second circular groove 6024, the fitting space 6025 and the fitting hole 6026 is defined as the fitting volume. The volume of the epoxy resin carried by the syringe is greater than the volume of the fitting volume. Therefore, when the syringe injects the epoxy resin into the fitting hole 6026 in excess, it can ensure that the epoxy resin is filled into the second space. According to the above steps, the syringe injects the epoxy resin into each fitting hole 6026. Through this method, the epoxy resin injection treatment of the fitting hole 6026 can be solved. Then, after completing the injection treatment of the fitting hole 6026, the syringe is pulled out, and the injection hole 503 is resealed with industrial soft glue, so that the epoxy resin can be injected into the high-voltage groove hole 501.

[0055] The above is only a preferred embodiment of the present application, not any form of limitation on the present application. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any brief introduction, modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application, without departing from the technical solution of the present application, are still within the scope of the technical solution of the present application.

Claims

1. A riveted high voltage transformer, characterized by: The application relates to a transformer shell, which comprises a transformer shell stacked by a plurality of transformer sheets, a plurality of slot groups arranged on the transformer shell, a riveting slot, a plurality of connecting slots and a plurality of connecting screws, the connecting slots are arranged on the transformer shell at equal angles around the central axis of the riveting slot, the connecting slots are arranged beside the riveting slot, the connecting screws are matched with the connecting slots one by one, any connecting screw is arranged in the corresponding connecting slot, the riveting slot is used for riveting connection of the plurality of transformer sheets, and the connecting screw is used for limiting the deformation degree of the riveting slot. The transformer shell is provided with a placing slot, a low-voltage assembly and a high-voltage assembly are coaxially arranged at two ends of the iron core, the matched iron core is arranged in the transformer shell through the placing slot, and the thickness of the iron core is equal to the thickness of the transformer shell. The high-voltage assembly comprises a high-voltage shell, a high-voltage framework and a high-voltage coil, the high-voltage coil is wound on the high-voltage framework, the high-voltage shell is provided with a high-voltage slot, the high-voltage framework is coaxially arranged in the high-voltage shell through the high-voltage slot, the high-voltage shell is further provided with a communication slot, and the high-voltage shell is coaxially arranged on one end of the iron core through the communication slot. The high-voltage framework comprises a hollow high-voltage shaft and a plurality of high-voltage mounting blocks, the high-voltage shaft is coaxially arranged in the high-voltage shell, the high-voltage mounting blocks are equidistantly and detachably arranged on the high-voltage shaft along the axis of the high-voltage shaft, the high-voltage mounting block is coaxially provided with two winding slots, and the two winding slots are symmetrically arranged on the two end outer walls of the high-voltage mounting block; a plurality of high-voltage coils are arranged, the plurality of high-voltage coils are matched with the plurality of high-voltage mounting blocks one by one, and any high-voltage coil is alternately wound in the two winding slots.

2. A potted high voltage transformer according to claim 1, characterized in that: Industrial soft glue is coated on the connection between the connecting screw and the connecting slot.

3. A potted high voltage transformer according to claim 1, characterized in that: The limiting assembly comprises two limiting plates and two limiting rivets, the two limiting plates are symmetrically arranged on the two sides of the same end of the transformer shell, the limiting plate and the transformer shell jointly form a matching slot, the limiting rivet is arranged in the corresponding matching slot, the limiting plate and the transformer shell are riveted and matched, and the projection area of the limiting plate on the surface of the transformer shell is located on the placing slot.

4. A potted high voltage transformer according to claim 1, characterized in that: The outer wall of the high-voltage mounting block is provided with a through slot, the through slot is in communication with the two winding slots, and the high-voltage coil is alternately wound in the two winding slots through the through slot.

5. A potted high voltage transformer according to claim 4, characterized in that: The high-pressure mounting block and the high-pressure shaft jointly form a filling space, the high-pressure mounting block is provided with two annular first circular grooves, the two first circular grooves are respectively matched with the two winding grooves, and any first circular groove is located at the bottom of the end of the corresponding winding groove close to the through groove.

6. A potted high voltage transformer according to claim 5, characterized in that: The high-pressure shaft is provided with a plurality of filling holes, the plurality of filling holes are arranged in the high-pressure shaft along the central axis of the high-pressure shaft at equal angles, the plurality of filling holes are one-to-one matched with the plurality of filling spaces, one end of any filling hole is communicated with the corresponding filling space, and the other end of the filling hole is communicated with the end face of the high-pressure shaft.

7. A potted high voltage transformer according to claim 6, characterized in that: The distance between the filling space and the central axis of the high-pressure shaft is greater than the distance between the filling hole and the central axis of the high-pressure shaft.

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