Transformer iron core structure and transformer

Abstract

The utility model discloses a transformer iron core structure and a transformer, which belong to the field of transformer iron core structures, and comprise a transformer assembly, the transformer assembly comprises two bottom plates and a top plate, two positioning rods are detachably connected between the two bottom plates and the top plate, two ends of the two positioning rods are fixedly connected with bolts, and the two positioning rods are fixedly connected with bolts. Two screw rods are in common threaded connection with the interiors of the two bottom plates and the top plate, a plurality of first iron cores and second iron cores are connected between the two bottom plates and the top plate, and two clamping grooves are formed in the two sides of each first iron core; according to the transformer assembly, the disassembly and assembly convenience of the transformer iron core structure can be remarkably improved, meanwhile, disassembly and limiting protection can be conveniently conducted on the transformer structure, the practicability of the transformer can be enhanced, in addition, the heat dissipation effect of the iron core structure can be conveniently improved through mutual cooperation of the structures, and the service life of the transformer is prolonged. And the service life of the transformer can be prolonged.

Description

Technical Field

[0001] The utility model relates to the field of transformer core structures, in particular to a transformer core structure and a transformer. Background Art

[0002] A transformer refers to a device that uses the principle of electromagnetic induction to change the AC voltage. Transformers can be divided into power transformers and special transformers according to their uses. Power transformers are mainly used in power transmission and distribution lines to change the magnitude of the AC voltage to meet the needs of different users. Among them, the "transformer core structure" disclosed in the patent with the application number "CN201620078169.3" is also an increasingly mature technology. "The transformer core structure provided in this application mainly includes a core body and a clamping device. The clamping device includes a bottom frame, a top frame and a first connecting rod. The bottom frame is arranged at the bottom end of the core body to clamp and fix the bottom end of the core body; the top frame is arranged at the top end of the core body to clamp and fix the top end of the core body; multiple first connecting rods pass through the pin holes arranged on the bottom frame and the top frame to connect the bottom frame and the top frame, and fasten the core body therein. Therefore, applying the transformer core structure provided in this application can effectively avoid punching holes in the core body, thereby ensuring that the effective cross-section of the yoke iron in the core is not affected and ensuring the power supply quality of the transformer." However, during the use of this core structure, there are still the following defects: The above-mentioned structure can indeed limit the core through the first connecting rod and other structures in cooperation with the core body, but the above structure is relatively complex, so it is inconvenient to disassemble and assemble the core. Based on this, it is necessary to provide a core structure that is convenient for disassembly and assembly. In addition, the temperature of the transformer core structure will rise after long-term use. In order to avoid damage to the transformer structure, a transformer structure that is convenient for heat dissipation is required. Summary of the Utility Model

[0003] The embodiments of the utility model provide a transformer core structure and a transformer, aiming to solve the problems that the disassembly and assembly stability of the existing transformer core structure needs to be improved, and it is not convenient for disassembly and heat dissipation at the same time.

[0004] To achieve the above object, the utility model provides a transformer core structure and a transformer, including a transformer assembly;

[0005] Among them, the transformer assembly includes two bottom plates and a top plate. Two positioning rods are detachably connected between the two bottom plates and the top plate. Bolts are fixedly connected to both ends of the two positioning rods. Two screw rods are threadedly connected to the interiors of the two bottom plates and the top plate. A number of first iron cores and second iron cores are respectively connected between the two bottom plates and the top plate. Two card slots are opened on both sides of a number of the first iron cores. Two card strips are fixedly connected to both ends of a number of the second iron cores. Both of the two card strips are clamped inside the card slots. A number of ventilation grooves are equidistantly and symmetrically opened on both sides of a number of the first iron cores and the second iron cores. A number of ventilation holes are opened on the surfaces of a number of the first iron cores and the second iron cores. A receiving plate is connected between the two bottom plates. A number of the first iron cores and the second iron cores are all installed on the upper end of the receiving plate. Two clamping plates are connected to both ends of a number of the first iron cores and the second iron cores. A number of buffer springs are detachably connected between the two clamping plates. Buffer shafts are fixedly connected to both ends of a number of the buffer springs. Two positioning holes are opened on the surfaces of a number of the first iron cores and the second iron cores. The positioning rods are inserted into the positioning holes.

[0006] As a preferred solution of the present invention, two first screw holes are opened on the opposite surfaces of the two bottom plates and the top plate. The bolts are threadedly connected inside the first screw holes. A first nut is threadedly connected to the side surface of the bolts.

[0007] As a preferred solution of the present invention, two second screw holes are opened at the upper and lower ends of the bottom plates and the top plate. The screw rods are threadedly connected inside the second screw holes. A second nut is threadedly connected to the side surface of the screw rods.

[0008] As a preferred solution of the present invention, two limiting grooves are opened on the opposite surfaces of the two bottom plates and the top plate. The two card strips on the surface of the first iron core are both clamped inside the limiting grooves.

[0009] As a preferred solution of the present invention, a number of insertion slots are opened on the opposite surfaces of the two bottom plates. A number of insertion blocks are fixedly connected to both sides of the receiving plate. A number of the insertion blocks are all inserted into the insertion slots.

[0010] As a preferred solution of the present invention, a number of connection holes are opened on the surfaces of the two clamping plates. Connection shafts are fixedly connected to both ends of the buffer springs. The connection shafts are inserted into the connection holes.

[0011] As a preferred solution of the present invention, the buffer shaft is made of rubber.

[0012] A transformer includes the transformer iron core structure described in any one of the above.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. When installing the transformer core structure, first, the clamping strips on both sides of several second cores are clamped inside the card slots on the surface of the first core, thereby initially improving the connection stability between several first cores and second cores. Finally, the first core and the second core are placed on the upper end of the bearing plate between two bottom plates and a top plate. Subsequently, the positioning rods are inserted into the positioning holes, and at the same time, the bolts and the lead screws are respectively threadedly connected inside the first screw holes and the second screw holes, enabling the clamping and fixing of several first cores and second cores by the bottom plate and the top plate, significantly improving the stability of the transformer core structure. During use, the several buffer springs and buffer shafts between the two clamping plates can buffer and limit several first cores and second cores. Compared with the transformer core structure in the prior art "a transformer core structure", the present utility model can significantly improve the disassembly and assembly stability of the transformer core through the mutual cooperation of the above structures, thereby enhancing the practicability of the core structure;

[0015] 2. When the transformer core structure is in use, the several ventilation grooves between several connected first cores and second cores can facilitate the dissipation of heat between the core structures. At the same time, the several ventilation holes on the surfaces of the first core and the second core can further play the role of ventilation and heat dissipation. Compared with the transformer core structure in the prior art "a transformer core structure", the present utility model can significantly improve the heat dissipation effect through the mutual cooperation of the above structures, thereby extending the service life of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is an exploded view of the transformer assembly structure of the present utility model;

[0018] Figure 3 is a schematic diagram of the core structure of the present utility model;

[0019] Figure 4 is an exploded view of the first core and the second core structure of the present utility model;

[0020] Figure 5 is a schematic diagram of the bearing plate structure of the present utility model;

[0021] Figure 6 is an exploded view of the buffer spring structure of the present utility model.

[0022] In the figure: 100, transformer assembly; 101, bottom plate; 102, top plate; 103, positioning rod; 104, bolt; 105, lead screw; 106, first iron core; 107, second iron core; 108, card slot; 109, card strip; 110, ventilation slot; 120, ventilation hole; 130, receiving plate; 140, clamping plate; 150, buffer spring; 160, buffer shaft; 170, positioning hole; 111, first screw hole; 112, first nut; 121, second screw hole; 122, second nut; 131, limit slot; 141, insertion slot; 142, insertion block; 151, connection hole; 152, connection shaft. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 1-6 , the present invention provides a transformer iron core structure and a transformer, including a transformer assembly 100;

[0025] Among them, the transformer assembly 100 includes two bottom plates 101 and a top plate 102. Two positioning rods 103 are detachably connected between the two bottom plates 101 and the top plate 102. Bolts 104 are fixedly connected to both ends of the two positioning rods 103. Two lead screws 105 are commonly threadedly connected inside the two bottom plates 101 and the top plate 102. A plurality of first iron cores 106 and second iron cores 107 are respectively connected between the two bottom plates 101 and the top plate 102. Two card slots 108 are opened on both sides of the plurality of first iron cores 106. Two card strips 109 are fixedly connected to both ends of the plurality of second iron cores 107. The two card strips 109 are both clamped inside the card slots 108. A plurality of ventilation slots 110 are equidistantly and symmetrically opened on both sides of the plurality of first iron cores 106 and second iron cores 107. A plurality of ventilation holes 120 are opened on the surfaces of the plurality of first iron cores 106 and second iron cores 107. A receiving plate 130 is connected between the two bottom plates 101. The plurality of first iron cores 106 and second iron cores 107 are all installed on the upper end of the receiving plate 130. Two clamping plates 140 are connected to both ends of the plurality of first iron cores 106 and second iron cores 107. A plurality of buffer springs 150 are detachably connected between the two clamping plates 140. Buffer shafts 160 are fixedly connected to both ends of the plurality of buffer springs 150. Two positioning holes 170 are opened on the surfaces of the plurality of first iron cores 106 and second iron cores 107. The positioning rods 103 are inserted into the positioning holes 170.

[0026] In a specific embodiment, the provided transformer assembly 100 can not only significantly improve the disassembly and assembly convenience of the transformer core structure, but also facilitate the disassembly and limit protection of the transformer structure, thereby enhancing the practicality of the transformer. In addition, through the cooperation of the above structures, it can also facilitate the improvement of the heat dissipation effect of the core structure, and further enhance the service life of the transformer. When in use, first, the two clamping strips 109 on the two side surfaces of several second cores 107 are clamped inside the two clamping grooves 108 on the surface of the first core 106 to initially improve the connection stability between several first cores 106 and second cores 107. Subsequently, the first core 106 and the second core 107 are placed on the upper end of the receiving plate 130 between the two bottom plates 101 and the top plate 102, and at the same time, the positioning rod 103 is inserted into the positioning hole 170. Then, the bolt 104 and the screw rod 105 are respectively threadedly connected into the first screw hole 111 and the second screw hole 121, so as to clamp and fix several first cores 106 and second cores 107 through the bottom plate 101 and the top plate 102, thereby improving the stability of the transformer core structure. When the transformer structure is operating, the two clamping plates 140 cooperate with several buffer springs 150 and buffer shafts 160 therebetween to buffer and limit several first cores 106 and second cores 107, improving the protection effect between the first core 106 and the second core 107, and thus extending the service life of the transformer.

[0027] Please refer to Figures 2-6 , two first screw holes 111 are provided on the opposite surfaces of the two bottom plates 101 and the top plate 102, the bolt 104 is threadedly connected inside the first screw hole 111, and a first nut 112 is threadedly connected to the side surface of the bolt 104.

[0028] In a specific embodiment, the threaded connection of the bolt 104 inside the first screw hole 111 can enhance the connection strength between the two bottom plates 101 or the two top plates 102, and improve the installation stability of the core structure.

[0029] Please refer to Figures 2-6 , two second screw holes 121 are provided at the upper and lower ends of the bottom plate 101 and the top plate 102, the screw rod 105 is threadedly connected inside the second screw hole 121, and a second nut 122 is threadedly connected to the side surface of the screw rod 105.

[0030] In a specific embodiment, the threaded connection of the screw rod 105 inside the second screw hole 121 can enhance the connection strength between the bottom plate 101 and the top plate 102, and further improve the clamping tightness of the first core 106 and the second core 107.

[0031] Please refer to Figures 2-6, on the opposite surfaces of the two bottom plates 101 and the top plate 102, two limiting grooves 131 are provided, and the two clamping bars 109 on the surface of the first iron core 106 are both clamped inside the limiting grooves 131.

[0032] In a specific embodiment, the clamping of the two clamping bars 109 inside the limiting grooves 131 can improve the limiting effect between the first iron core 106 and the second iron core 107 and the bottom plate 101 and the top plate 102.

[0033] Please refer to Figures 2-6 , on the opposite surfaces of the two bottom plates 101, a plurality of insertion grooves 141 are provided, and both sides of the receiving plate 130 are fixedly connected with a plurality of insertion blocks 142, and the plurality of insertion blocks 142 are all inserted inside the insertion grooves 141.

[0034] In a specific embodiment, the insertion of the insertion blocks 142 inside the insertion grooves 141 can improve the connection stability between the receiving plate 130 and the bottom plate 101, and at the same time facilitate disassembly as needed.

[0035] Please refer to Figures 2-6 , on the surfaces of the two clamping plates 140, a plurality of connection holes 151 are provided, both ends of the buffer spring 150 are fixedly connected with connection shafts 152, and the connection shafts 152 are inserted inside the connection holes 151.

[0036] In a specific embodiment, the insertion of the connection shafts 152 inside the connection holes 151 can improve the disassembly and assembly convenience between the buffer spring 150 and the clamping plate 140.

[0037] Please refer to Figures 2-6 , the buffer shaft 160 is made of rubber.

[0038] In a specific embodiment, the buffer shaft 160 made of rubber can improve the buffer protection effect on the first iron core 106 and the second iron core 107.

[0039] Working principle: When in use, first, the two clamping bars 109 on the two side surfaces of several second iron cores 107 are clamped inside the two clamping grooves 108 on the surface of the first iron core 106, so as to preliminarily improve the connection stability between several first iron cores 106 and second iron cores 107. Then, the first iron core 106 and the second iron core 107 are placed on the upper end of the receiving plate 130. At the same time, the positioning rod 103 is inserted into the positioning hole 170. Then, the bolt 104 and the lead screw 105 are respectively threadedly connected inside the first screw hole 111 and the second screw hole 121, so as to clamp and fix several first iron cores 106 and second iron cores 107 through the bottom plate 101 and the top plate 102, thereby improving the stability of the transformer iron core structure. When the transformer structure is operating, the two clamping plates 140 cooperate with several buffer springs 150 and buffer shafts 160 therebetween to buffer and limit several first iron cores 106 and second iron cores 107, so as to improve the protection effect between the first iron core 106 and the second iron core 107, and further extend the service life of the transformer.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transformer core structure, characterized in that: include: A transformer assembly (100), the transformer assembly (100) comprising two bottom plates (101) and a top plate (102), two positioning rods (103) being detachably connected between the two bottom plates (101) and the top plate (102), both ends of the two positioning rods (103) being fixedly connected with bolts (104), two screw rods (105) being threadedly connected inside the two bottom plates (101) and the top plate (102), a plurality of first iron cores (106) and a second iron core (107) being respectively connected between the two bottom plates (101) and the top plate (102), two clamping grooves (108) being provided on both sides of the plurality of first iron cores (106), two clamping strips (109) being fixedly connected at both ends of the plurality of second iron cores (107), the two clamping strips (109) being clamped inside the clamping grooves (108), and the plurality of first iron cores (106) and the second iron cores A plurality of ventilation slots (110) are symmetrically and equidistantly provided on both sides of the (107); a plurality of ventilation holes (120) are provided on the surfaces of the first iron cores (106) and the second iron cores (107); a receiving plate (130) is connected between the two bottom plates (101); a plurality of the first iron cores (106) and the second iron cores (107) are installed on the upper end of the receiving plate (130); two clamping plates (140) are connected at both ends of the first iron cores (106) and the second iron cores (107); a plurality of buffer springs (150) are detachably connected between the two clamping plates (140); a plurality of buffer springs (150) are fixedly connected at both ends with buffer shafts (160); two positioning holes (170) are provided on the surfaces of the first iron cores (106) and the second iron cores (107); the positioning rods (103) are inserted into the interior of the positioning holes (170).

2. A transformer core structure according to claim 1, characterized in that: Two first screw holes (111) are provided on the opposite surfaces of the two bottom plates (101) and the top plate (102), the bolts (104) are threadedly connected inside the first screw holes (111), and the side surfaces of the bolts (104) are threadedly connected with first nuts (112).

3. A transformer core structure according to claim 1, characterized in that: Two second screw holes (121) are provided at the upper and lower ends of the bottom plate (101) and the top plate (102); the screw rod (105) is threadedly connected to the inside of the second screw holes (121); and the side surface of the screw rod (105) is threadedly connected to a second nut (122).

4. A transformer core structure according to claim 1, characterized in that: Two limiting grooves (131) are provided on the opposite surfaces of the two bottom plates (101) and the top plate (102), and two clamping strips (109) on the surface of the first iron core (106) are clamped inside the limiting grooves (131).

5. The transformer core structure according to claim 1, characterized in that: The opposite surfaces of the two bottom plates (101) are each provided with a plurality of plug-in slots (141), and both sides of the receiving plate (130) are fixedly connected with a plurality of plug-in blocks (142), and the plurality of plug-in blocks (142) are each plugged into the inside of the plug-in slots (141).

6. The transformer core structure according to claim 1, characterized in that: A plurality of connection holes (151) are provided on the surfaces of the two clamping plates (140), and both ends of the buffer spring (150) are fixedly connected with connection shafts (152), and the connection shafts (152) are inserted into the interior of the connection holes (151).

7. The transformer core structure according to claim 1, characterized in that: The buffer shaft (160) is made of rubber.

8. A transformer, characterized in that: The invention comprises a transformer core structure as described in any one of claims 1 to 7.

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