A network transformer

Abstract

The present invention relates to the field of electronic component technology, and more particularly to a network transformer comprising a housing, a frame mounted within the housing, and a transformer mechanism mounted on the frame. The housing is provided with a plurality of pins, the transformer mechanism being electrically connected to the pins. The housing comprises a base, a rotating mechanism, and two side covers rotatably connected to either side of the base. The frame is mounted on the base, and the two side covers cooperate with the base to enclose the frame and the transformer mechanism. The rotating mechanism is used to drive the two side covers to rotate toward or away from each other. The present invention utilizes a base and two side covers to form a housing, and a rotating mechanism to control the rotation of the two side covers to achieve opening and closing of the housing, thereby enabling the housing to be opened more quickly when the transformer mechanism needs to be repaired.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic components, in particular to a network transformer. Background Art

[0002] Most of the current network transformers use glue injection to encapsulate their transformer mechanisms. Although this method can ensure that the transformer mechanism is isolated from the outside world and is conducive to improving the service life of the transformer mechanism, if the transformer mechanism fails, it will take a lot of manpower and material resources to open the package to repair the transformer mechanism. After the repair is completed, glue is also needed to re-encapsulate the transformer mechanism, which is undoubtedly a waste of manpower costs. Summary of the Invention

[0003] The present invention aims to solve the problems in the prior art and provides a network transformer, the shell of which can be quickly opened and the transformer mechanism can be repaired.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The present invention provides a network transformer, comprising a shell, a frame installed in the shell, and a transformer mechanism installed on the frame. The shell is provided with a plurality of pins, and the transformer mechanism is electrically connected to the pins. The shell comprises a base, a rotating mechanism, and two side covers respectively rotatably connected to the two sides of the base. The frame is installed on the base, and the two side covers cooperate with the base to surround the frame and the transformer mechanism. The rotating mechanism is used to drive the two side covers to flip in a direction closer to or farther away from each other.

[0006] Furthermore, the rotation mechanism includes a handle, a driving gear and two driven gears, the driving gear and the handle are coaxially transmitted, the two side covers are respectively provided with a rotating shaft, the rotating shaft is rotatably connected to the base, the two driven gears are respectively installed on the two rotating shafts, the two driven gears are engaged with each other, and one of the transmission gears is engaged with the driving gear.

[0007] Furthermore, a through hole is provided at the center of the driving gear, and card slots are provided on both sides of the through hole; the handle is connected to a rotating shaft for inserting into the through hole, and card blocks are provided on both sides of the rotating shaft, and the card blocks are installed in the card slots.

[0008] Preferably, a reset member is provided at one end of the rotating shaft away from the handle, and the reset member is connected to the inner wall of the base, and the reset member is used to drive the handle to move so that the card block is disengaged from the card slot.

[0009] Furthermore, a positioning mechanism is provided at the abutment of the two side covers, and the positioning mechanism includes a positioning hole, a limiting hole, a positioning block and an elastic member, the positioning hole and the limiting hole are both provided on the same side cover, and the limiting hole is connected to one side of the positioning hole; the positioning block and the elastic member are both provided on the other side cover, and the positioning block is connected to the other side cover via the elastic member; when the two side covers approach each other and contact each other, the positioning block is inserted into the positioning hole and compresses the elastic member until the positioning block is fully inserted into the positioning hole, and the elastic member resets and pushes the positioning block into the limiting hole.

[0010] Furthermore, a button is movably provided in the limiting hole, and the button is used to interfere with the positioning block and push the positioning block away from the limiting hole.

[0011] Furthermore, the pin includes an external connection part and an internal connection part connected to the external connection part, the external connection part protrudes from the side wall of the base, and the internal connection part protrudes from the top wall of the base; the bottom of the skeleton is provided with conductive holes with the same number as the internal connection part, and the inner walls of the conductive holes are provided with multiple metal sheets, and the transformer mechanism is respectively connected to the multiple metal sheets; when the skeleton is installed on the base, the internal connection part is inserted into the conductive hole and contacts the metal sheet.

[0012] Furthermore, a socket is provided on the top of the base, a first magnet is provided in the socket, and a shielding layer is provided on the inner wall of the socket; a second magnet is provided at the bottom of the skeleton, and the second magnet is used to be inserted into the socket and magnetically connected to the first magnet.

[0013] Furthermore, the skeleton is made of skeleton materials, which include the following raw materials in parts by weight: 65-80 parts of PET resin, 15-20 parts of silicone epoxy resin, 12-18 parts of PVDF resin, 9-14 parts of acrylonitrile-butadiene-styrene copolymer, 8-14 parts of glass fiber, 6-12 parts of modified graphene oxide, 10-20 parts of filler, 0.4-2 parts of antioxidant and 0.4-2 parts of light stabilizer.

[0014] Furthermore, the molecular weight of the PET resin is 23,000-27,000. The acrylonitrile-butadiene-styrene copolymer (ABS) has the characteristics of high strength and good toughness, and is matched with other raw materials to improve the mechanical properties and processing formability of the skeleton material. The acrylonitrile-butadiene-styrene copolymer can be, but is not limited to, Taiwan Chi Mei PA-764B. PVDF has good compatibility with PET resin, silicone epoxy resin, etc. in the system, has excellent toughness, friction coefficient, corrosion resistance and aging resistance, and can give the skeleton material good chemical stability and electrical insulation properties. The PVDF resin can be, but is not limited to, Arkema 460.

[0015] Furthermore, the filler is composed of nano-aluminum nitride, nano-aluminum oxide and nano-zinc oxide in a weight ratio of 0.6-2:1:0.5-1, and the filler particle size is 40-90nm. Nano-aluminum nitride has a crystalline structure, and nano-aluminum oxide has an amorphous structure; by comparison. Nano-aluminum nitride has better thermal conductivity than nano-aluminum oxide, but nano-aluminum oxide has better mechanical properties for PET resin; zinc oxide can improve the weather resistance of PET resin, and can be combined with acrylonitrile-butadiene-styrene copolymer to increase the uniformity and fineness of the spherulite structure of the composite material for the skeleton material, increase the cross-linking network density of the skeleton material, and improve its mechanical properties. The present invention adopts the above-mentioned fillers and controls their dosage ratio so that the three complement each other, thereby making the skeleton material have excellent thermal conductivity, mechanical properties and weather resistance.

[0016] Furthermore, the preparation method of the modified graphene oxide comprises the following steps: (1) mixing 6-12 parts of graphene oxide and 80-90 parts of ethanol by weight, adding 2-4 parts of a silane coupling agent, heating to 70-90° C. and stirring continuously to obtain a mixture A; (2) uniformly mixing the mixture A with 4-n-butyl-4-cyanobiphenyl, and then adding vinyl silicone oil, wherein the weight ratio of the mixture A, 4-n-butyl-4-cyanobiphenyl, and vinyl silicone oil is 8-12:0.4-0.8:2-5; (3) ultrasonically treating the mixture with the vinyl silicone oil, wherein the ultrasonic treatment power is 150-200W, the treatment time is 4-5h, and the ultrasonic treatment temperature is 50-65° C., and after removing the ethanol, an oily modified graphene oxide is obtained. Furthermore, the silane coupling agent is at least one of silane coupling agents KH-550, KH-560, and KH-570. By pre-modifying the graphene oxide, the modified graphene oxide is made liquid and then directly mixed with the matrix resin, and evenly dispersed in the graphene oxide system, the problem that graphene oxide itself is easy to agglomerate and difficult to disperse is solved, so that the skeleton material can have excellent thermal conductivity while maintaining insulation.

[0017] Furthermore, the preparation method of the organosilicon epoxy resin comprises the following steps: taking 40-50 parts by weight of 1,2-epoxy-4-vinylcyclohexane, 0.5-1 part of chloroplatinic acid, and 2-3 parts of toluene, mixing them uniformly at a temperature of 85-95°C, and then dropwise adding 20-25 parts of phenyltris(trimethylsiloxy)silane, 10-14 parts of methyltriacetoxysilane, and 4-8 parts of dimethyldichlorosilane for 60-120 minutes, maintaining stirring, reacting at a temperature of 110-120°C for 90-150 minutes, and distilling under reduced pressure to obtain the organosilicon epoxy resin. Through the above steps, the prepared organosilicon epoxy resin has good bonding properties, can achieve good compatibility and coordination with PVDF resin and acrylonitrile-butadiene-styrene copolymer, and improves the mechanical properties and weather resistance of the resin used in the composite skeleton.

[0018] Furthermore, the antioxidant is at least one of antioxidant 1010, antioxidant 1076, antioxidant 168, antioxidant 126, and antioxidant DLTP. By using the above antioxidants, the present invention can improve the antioxidant properties of the skeleton material, solve the problem of yellowing, effectively inhibit the thermal aging degradation of the skeleton material, and improve its stability.

[0019] Furthermore, the light stabilizer is at least one of light stabilizer 622, light stabilizer 770, and light stabilizer 944. The present invention effectively improves the stability of the skeleton material by using the above light stabilizer.

[0020] Furthermore, the method for preparing the skeleton material includes the following steps: weighing the raw materials except the glass fiber by weight, mixing them, adding them to the extruder from the main feed port, adding the glass fiber to the extruder from the side feed port, and melt-extruding and granulating them to obtain the skeleton material. Furthermore, the temperatures of zones one to five of the extruder are 210-225°C, 225-235°C, 240-255°C, 225-235°C, and 190-210°C, respectively. The side feed port is located between zones five and six. The glass fiber is added at an appropriate time to prevent the glass fiber from being cut too finely by the extruder due to being added too early, resulting in a reduced reinforcement effect; and to prevent uneven mixing due to being added too late, which affects the overall reinforcement effect on the skeleton plastic. The method for preparing the skeleton material of the present invention is easy to operate and control, has stable product quality, and is conducive to industrial production.

[0021] The skeleton material of the present invention uses PET resin as a matrix, is matched with silicone epoxy resin, PVDF resin and acrylonitrile-butadiene-styrene copolymer, and is added with glass fiber, modified graphene oxide and fillers. The mechanical properties, dimensional stability and other properties of the skeleton material are improved, so that the skeleton material has good thermal conductivity and insulation properties, is suitable for use in manufacturing transformer skeletons, and the resulting transformer skeleton product has stable quality and a long service life.

[0022] Beneficial effects of the present invention: The present invention forms a shell by adopting a base and two side covers, and controls the rotation of the two side covers through a rotating mechanism to realize the opening and closing of the shell, so that the shell can be opened more quickly when the transformer mechanism needs to be repaired. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the present invention.

[0024] Figure 2 It is a schematic diagram of the decomposition of the present invention.

[0025] Figure 3It is a schematic diagram of the cooperation between the handle and the driving gear of the present invention.

[0026] Figure 4 It is a schematic diagram of the positioning mechanism of the present invention.

[0027] Figure 5 It is a top schematic diagram of the base of the present invention.

[0028] Figure 6 Schematic diagram of the bottom of the skeleton of the present invention.

[0029] Figure numerals: 1—shell, 2—skeleton, 3—transformer mechanism, 4—pin, 11—base, 12—rotating mechanism, 13—side cover, 14—positioning mechanism, 21—conductive hole, 22—metal sheet, 23—second magnet, 41—external connection part, 42—internal connection part, 111—jack, 112—first magnet, 113—shielding layer, 121—handle, 122—driving gear, 124—driven gear, 125—meshing gear, 131—rotating shaft, 141—positioning hole, 142—limiting hole, 143—positioning block, 144—elastic member, 145—button, 1211—rotating shaft, 1212—block, 1213—reset member, 1221—through hole, 1222—slot. DETAILED DESCRIPTION

[0030] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the embodiments and the accompanying drawings. The contents mentioned in the embodiments are not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, a network transformer includes a shell 1, a frame 2 installed in the shell 1, and a transformer mechanism 3 installed on the frame 2. The shell 1 is provided with multiple pins 4, and the transformer mechanism 3 is electrically connected to the pins 4. The shell 1 includes a base 11, a rotating mechanism 12, and two side covers 13 respectively rotatably connected to the two sides of the base 11. The frame 2 is installed on the base 11, and the two side covers 13 cooperate with the base 11 to surround the frame 2 and the transformer mechanism 3. The rotating mechanism 12 is used to drive the two side covers 13 to flip towards or away from each other.

[0033] The present invention comprises a housing 1 by using a base 11 and two side covers 13 , and controls the flipping of the two side covers 13 by a rotating mechanism 12 to realize the opening and closing of the housing 1 , thereby enabling the housing 1 to be opened more quickly when the transformer mechanism 3 needs to be repaired.

[0034] In this embodiment, the rotating mechanism 12 includes a handle 121, a driving gear 122 and two driven gears 124. The driving gear 122 is coaxial with the handle 121. The two side covers 13 are respectively provided with a rotating shaft 131, which is rotatably connected to the base 11. The two driven gears 124 are respectively mounted on the two rotating shafts 131. The two driven gears 124 are meshed with each other, and one of the transmission gears is meshed with the driving gear 122. That is, the side cover 13 of the present invention is specifically controlled by the handle 121 to open and close the side cover 13, so as to Figure 1 As an example, combined with Figure 2 As can be seen from the structure, if it is necessary to open the side cover 13, the handle 121 is turned clockwise to drive the driving gear 122 to rotate clockwise, so that the driven gear 124 on the left side, which is engaged with the driving gear 122, rotates counterclockwise, that is, the side cover 13 on the left is flipped clockwise by rotating the transmission gear on the left. At the same time, since the driven gear 124 on the right is engaged with the driven gear 124 on the left, the driven gear 124 on the right rotates clockwise, and the side cover 13 on the right is driven to flip clockwise through the 131 connected thereto, thereby achieving the effect of simultaneously controlling the outward rotation of the two side covers 13, that is, opening the shell 1; of course, if it is necessary to close the shell 1, it is only necessary to turn the handle 121 counterclockwise, and its principle is roughly the same as the principle of opening the side cover 13 mentioned above, so it is not repeated here. Based on position considerations, transmission engagement can be achieved between the two driven gears 124 by providing multiple meshing gears 125 , and the number of the meshing gears 125 can be an even number, for example, in this embodiment, the number of the meshing gears 125 is four.

[0035] Specifically, the driving gear 122 is provided with a through hole 1221 at its center, with slots 1222 provided on either side of the through hole 1221. The handle 121 is connected to a rotating shaft 1211 for insertion into the through hole 1221, with blocks 1212 provided on either side of the rotating shaft 1211. The blocks 1212 are mounted in the slots 1222. By engaging the blocks 1212 in the slots 1222, the handle 121 is positioned, thereby ensuring that the driving gear 122 can be smoothly driven to rotate.

[0036] Preferably, in order to ensure that the side cover 13 is not opened due to the handle 121 being accidentally touched when the side cover 13 does not need to be opened, a reset member 1213 is provided at the end of the rotating shaft 1211 away from the handle 121 in this embodiment. The reset member 1213 is connected to the inner wall of the base 11 and is used to drive the handle 121 to move so that the block 1212 is disengaged from the slot 1222. That is, in a normal state, the reset member 1213 will push the handle 121 to disengage the block 1212 from the slot 1222. At this time, even if the handle 121 is turned, the side cover 13 cannot be turned over. When the side cover 13 needs to be turned over, the staff first presses the handle 121 inward, compressing the reset member 1213 while also causing the block 1212 to be installed in the slot 1222. Only then can the driving gear 122 be controlled to control the side cover 13.

[0037] Specifically, the reset member 1213 in this embodiment is preferably a spring.

[0038] In this embodiment, the pin 4 includes an external connection portion 41 and an internal connection portion 42 connected to the external connection portion 41, the external connection portion 41 protruding from the side wall of the base 11, and the internal connection portion 42 protruding from the top wall of the base 11; the bottom of the skeleton 2 is provided with a number of conductive holes 21 equal to the number of the internal connection portions 42, and the inner walls of the conductive holes 21 are provided with a plurality of metal sheets 22, and the transformer mechanism 3 is respectively connected to the plurality of metal sheets 22; when the skeleton 2 is installed on the base 11, the internal connection portion 42 is inserted into the conductive hole 21 and contacts the metal sheet 22, thereby achieving the effect of rapid contact connection between the transformer mechanism 3 and the pin 4. Specifically, the transformer mechanism 3 described in this embodiment is the most conventional transformer mechanism 3 in the field, such as a structure formed by winding a coil. This structure is very common to those skilled in the art, so it will not be described in detail.

[0039] In this embodiment, a socket 111 is provided at the top of the base 11, a first magnet 112 is disposed within the socket 111, and a shielding layer 113 is provided on the inner wall of the socket 111. A second magnet 23 is provided at the bottom of the frame 2, and the second magnet 23 is configured to be inserted into the socket 111 and magnetically connected to the first magnet 112. Inserting the second magnet 23 into the socket 111 completes the positioning and assembly of the base 11 and the frame 2, thereby ensuring a one-to-one correspondence between the internal connection portion 42 of the pin 4 and the conductive hole 21. After installation, the mutual attraction between the first magnet 112 and the second magnet 23 ensures the stability of the connection between the base 11 and the frame 2, preventing the frame 2 from easily moving relative to the base 11 without human manipulation.

[0040] Example 2

[0041] like Figure 4As shown, the difference between this embodiment and embodiment 1 is that this embodiment adopts another method to prevent the side cover 13 from accidentally turning outward, specifically: a positioning mechanism 14 is provided at the abutment of the two side covers 13, the positioning mechanism 14 includes a positioning hole 141, a limiting hole 142, a positioning block 143 and an elastic member 144, the positioning hole 141 and the limiting hole 142 are both provided on the same side cover 13, the limiting hole 142 is communicated with one side of the positioning hole 141; the positioning block 143 and the elastic member 144 Both are arranged on the other side cover 13, and the positioning block 143 is connected to the other side cover 13 via the elastic member 144; when the two side covers 13 are close to each other and contact each other, the positioning block 143 is inserted into the positioning hole 141 and compresses the elastic member 144 until the positioning block 143 is completely inserted into the positioning hole 141, and the elastic member 144 is reset to push the positioning block 143 into the limiting hole 142, thereby achieving the positioning effect, so that the two side covers 13 will not turn outward by themselves and open the shell 1.

[0042] Specifically, a button 145 is movably provided in the limiting hole 142. The button 145 is used to interfere with the positioning block 143 and push the positioning block 143 away from the limiting hole 142. When the housing needs to be opened, the positioning block 143 is pushed out of the limiting hole 142, so that the positioning block 143 can slide along the positioning hole 141 until it is released from the positioning hole 141. Specifically, the elastic member 144 in this embodiment is preferably a spring.

[0043] Of course, either of the two methods of preventing the side cover 13 from accidentally turning outward can be used, or both methods can be used simultaneously in the same solution as in the present invention. The staff can choose according to the actual usage scenario.

[0044] Example 3

[0045] In this embodiment, the skeleton 2 is made of a skeleton material, and the skeleton material includes the following raw materials in parts by weight: 75 parts of PET resin, 16 parts of silicone epoxy resin, 15 parts of PVDF resin, 11 parts of acrylonitrile-butadiene-styrene copolymer, 12 parts of glass fiber, 8 parts of modified graphene oxide, 15 parts of filler, 1 part of antioxidant and 1.2 parts of light stabilizer.

[0046] Furthermore, the molecular weight of the PET resin is 23000-27000. The acrylonitrile-butadiene-styrene copolymer can be, but is not limited to, Taiwan Chimei PA-764B. The PVDF resin can be, but is not limited to, Arkema 460.

[0047] Furthermore, the filler is composed of nano-aluminum nitride, nano-aluminum oxide and nano-zinc oxide in a weight ratio of 1.5:1:0.8, and the particle size of the filler is 40-90 nm.

[0048] Furthermore, the preparation method of the modified graphene oxide comprises the following steps: (1) mixing 8 parts of graphene oxide and 85 parts of ethanol by weight, adding 3 parts of a silane coupling agent, heating to 78° C. and stirring continuously to obtain a mixture A; (2) uniformly mixing the mixture A with 4-n-butyl-4-cyanobiphenyl, and then adding vinyl silicone oil, wherein the weight ratio of the mixture A, 4-n-butyl-4-cyanobiphenyl, and vinyl silicone oil is 10:0.6:4; (3) ultrasonically treating the mixture with the vinyl silicone oil, wherein the ultrasonic treatment power is 180 W, the treatment time is 4.5 h, and the ultrasonic treatment temperature is 55° C., and after removing the ethanol, an oily modified graphene oxide is obtained. The silane coupling agent is silane coupling agent KH-550.

[0049] Furthermore, the preparation method of the silicone epoxy resin comprises the following steps: taking 45 parts of 1,2-epoxy-4-vinylcyclohexane, 0.6 parts of chloroplatinic acid, and 2.5 parts of toluene by weight, mixing them uniformly at a temperature of 90°C, and then adding dropwise 22 parts of phenyltris(trimethylsiloxy)silane, 11 parts of methyltriacetoxysilane, and 6 parts of dimethyldichlorosilane. The dropping time is 100 minutes, the stirring state is maintained, the reaction is carried out at a temperature of 115°C for 120 minutes, and the silicone epoxy resin is obtained after reduced pressure distillation.

[0050] Furthermore, the antioxidant is composed of antioxidant 1010 and antioxidant 1076 in a weight ratio of 1:1. The light stabilizer is composed of light stabilizer 622 and light stabilizer 770 in a weight ratio of 1:2.

[0051] Furthermore, the method for preparing the skeleton material includes the following steps: weighing raw materials excluding glass fiber by weight, mixing them, adding them to an extruder through a main feed port, adding glass fiber to the extruder through a side feed port, and melt-extruding and granulating them to obtain the skeleton material. Furthermore, the temperatures of zones 1 to 5 of the extruder are 215°C, 230°C, 245°C, 230°C, and 200°C, respectively, and the side feed port is located between zones 5 and 6.

[0052] The rest of the contents of this embodiment are the same as those of embodiment 1 and will not be repeated here.

[0053] Example 4

[0054] In this embodiment, the skeleton 2 is made of a skeleton material, and the skeleton material includes the following raw materials in parts by weight: 65 parts of PET resin, 15 parts of silicone epoxy resin, 12 parts of PVDF resin, 9 parts of acrylonitrile-butadiene-styrene copolymer, 8 parts of glass fiber, 6 parts of modified graphene oxide, 10 parts of filler, 0.4 parts of antioxidant and 0.4 parts of light stabilizer.

[0055] Furthermore, the filler is composed of nano-aluminum nitride, nano-aluminum oxide and nano-zinc oxide in a weight ratio of 0.6:1:0.5, and the particle size of the filler is 40-90 nm.

[0056] Furthermore, the preparation method of the modified graphene oxide comprises the following steps: (1) mixing 6 parts of graphene oxide and 80 parts of ethanol by weight, adding 2 parts of a silane coupling agent, heating to 70°C and stirring continuously to obtain a mixture A; (2) uniformly mixing the mixture A with 4-n-butyl-4-cyanobiphenyl, and then adding vinyl silicone oil, wherein the weight ratio of the mixture A, 4-n-butyl-4-cyanobiphenyl, and vinyl silicone oil is 8:0.4:2; (3) ultrasonically treating the mixture with the vinyl silicone oil at a power of 150W, a treatment time of 5h, and a temperature of 55°C, and removing the ethanol to obtain oily modified graphene oxide. The silane coupling agent is composed of silane coupling agents KH-560 and KH-570 in a weight ratio of 1:0.8.

[0057] Furthermore, the preparation method of the silicone epoxy resin includes the following steps: taking 40 parts of 1,2-epoxy-4-vinylcyclohexane, 0.5 parts of chloroplatinic acid, and 2 parts of toluene by weight, mixing them evenly at a temperature of 85°C, and then adding 20 parts of phenyltris(trimethylsiloxy)silane, 10 parts of methyltriacetoxysilane, and 4 parts of dimethyldichlorosilane dropwise, the addition time is 60 minutes, keeping the stirring state, reacting at a temperature of 110°C for 150 minutes, and obtaining the silicone epoxy resin after reduced pressure distillation.

[0058] Furthermore, the antioxidant is composed of antioxidant 168 and antioxidant DLTP in a weight ratio of 1:2. Furthermore, the light stabilizer is composed of light stabilizer 770 and light stabilizer 944 in a weight ratio of 1:1.5.

[0059] The rest of the content of this embodiment is the same as that of Embodiment 3 and will not be repeated here.

[0060] Example 5

[0061] In this embodiment, the skeleton 2 is made of a skeleton material, and the skeleton material includes the following raw materials in parts by weight: 80 parts of PET resin, 20 parts of silicone epoxy resin, 18 parts of PVDF resin, 14 parts of acrylonitrile-butadiene-styrene copolymer, 13 parts of glass fiber, 12 parts of modified graphene oxide, 20 parts of filler, 2 parts of antioxidant and 1.2 parts of light stabilizer.

[0062] Furthermore, the molecular weight of the PET resin is 23000-27000. The acrylonitrile-butadiene-styrene copolymer can be, but is not limited to, Taiwan Chimei PA-764B. The PVDF resin can be, but is not limited to, Arkema 460.

[0063] Furthermore, the filler is composed of nano-aluminum nitride, nano-aluminum oxide and nano-zinc oxide in a weight ratio of 2:1:1, and the particle size of the filler is 40-90 nm.

[0064] Furthermore, the preparation method of the modified graphene oxide comprises the following steps: (1) mixing 12 parts of graphene oxide and 90 parts of ethanol by weight, adding 4 parts of a silane coupling agent, heating to 90° C. and stirring continuously to obtain a mixture A; (2) uniformly mixing the mixture A with 4-n-butyl-4-cyanobiphenyl, and then adding vinyl silicone oil, wherein the weight ratio of the mixture A, 4-n-butyl-4-cyanobiphenyl, and vinyl silicone oil is 12:0.8:5; (3) ultrasonically treating the mixture with the vinyl silicone oil at a power of 200 W, a treatment time of 4 hours, and a temperature of 65° C., and removing the ethanol to obtain oily modified graphene oxide. The silane coupling agent is silane coupling agent KH-570.

[0065] Furthermore, the preparation method of the silicone epoxy resin includes the following steps: taking 50 parts of 1,2-epoxy-4-vinylcyclohexane, 1 part of chloroplatinic acid, and 3 parts of toluene by weight, mixing them evenly at a temperature of 95°C, and then adding dropwise 25 parts of phenyltris(trimethylsiloxy)silane, 14 parts of methyltriacetoxysilane, and 8 parts of dimethyldichlorosilane for 120 minutes. The stirring state is maintained, and the reaction is carried out at a temperature of 120°C for 90 minutes. The silicone epoxy resin is obtained after reduced pressure distillation.

[0066] Furthermore, the antioxidant is antioxidant 168. The light stabilizer is light stabilizer 944.

[0067] The rest of the content of this embodiment is the same as that of Embodiment 2 and will not be repeated here.

[0068] Example 6

[0069] In this embodiment, the skeleton 2 is made of a skeleton material, and the skeleton material includes the following raw materials in parts by weight: 72 parts of PET resin, 16 parts of silicone epoxy resin, 14 parts of PVDF resin, 11 parts of acrylonitrile-butadiene-styrene copolymer, 14 parts of glass fiber, 9 parts of modified graphene oxide, 17 parts of filler, 1.2 parts of antioxidant and 2 parts of light stabilizer.

[0070] The rest of the content of this embodiment is similar to that of embodiment 3 and will not be repeated here.

[0071] Comparative Example 1

[0072] The difference between this comparative example and Example 3 is that the skeleton 2 is made of a skeleton material, and the skeleton material includes the following raw materials in parts by weight: 91 parts of PET resin, 15 parts of PVDF resin, 11 parts of acrylonitrile-butadiene-styrene copolymer, 12 parts of glass fiber, 8 parts of modified graphene oxide, 15 parts of filler, 1 part of antioxidant and 1.2 parts of light stabilizer.

[0073] Comparative Example 2

[0074] The difference between this comparative example and Example 3 is that graphene oxide is used instead of the modified graphene oxide in Example 3. The amount of graphene oxide added in this comparative example is adjusted to be the same as the amount of graphene oxide in the preparation process of the modified graphene oxide.

[0075] The performance tests of Examples 3-6 and Comparative Examples 1-2 were carried out, wherein the thermal conductivity was measured according to ASTM C177, the surface resistance was measured according to ASTM D25793, the flexural strength was measured according to ASTM D790, the tensile strength was measured according to ASTM D638, the notched impact strength was measured according to ASTM D256, and the m 2 The performance test results are as follows:

[0076]

[0077]

[0078] As can be seen from the above experimental data, the bending strength, tensile strength and notched impact strength of Example 3 in which silicone epoxy resin is added are enhanced compared with Comparative Example 1; while in Comparative Example 2, in which graphene oxide is used instead of the modified graphene oxide in Example 3, the mechanical properties do not change much, but the thermal conductivity and insulation properties are reduced.

[0079] The anti-aging test was carried out on the skeleton materials of Examples 3-6. The high-reinforced manure tank plastic was treated at 160°C for 1000 hours, and its mechanical properties were almost unchanged. The change rates of tensile bending strength, tensile elongation strength and notched impact strength were all less than 0.4%.

[0080] From the above content, it can be seen that the skeleton material of the present invention has excellent thermal conductivity and mechanical properties, good insulation, and the transformer skeleton product prepared has stable quality and long service life.

[0081] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are all within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. A network transformer comprising a housing, a frame mounted in the housing, and a transformer mechanism mounted on the frame, wherein the housing is provided with a plurality of pins, the transformer mechanism being electrically connected to the pins, and characterized in that: The housing includes a base, a rotating mechanism, and two side covers rotatably connected to both sides of the base. The frame is mounted on the base. The two side covers cooperate with the base to surround the frame and the transformer mechanism. The rotating mechanism is used to drive the two side covers to flip toward or away from each other. The rotating mechanism includes a handle, a driving gear and two driven gears, the driving gear is coaxial with the handle, the two side covers are respectively provided with a rotating shaft, the rotating shaft is rotatably connected to the base, the two driven gears are respectively mounted on the two rotating shafts, the two driven gears are meshed with each other, and one of the transmission gears is meshed with the driving gear; A through hole is provided at the center of the driving gear, and a clamping slot is provided on both sides of the through hole; the handle is connected to a rotating shaft for inserting into the through hole, and a clamping block is provided on both sides of the rotating shaft, and the clamping block is installed in the clamping slot; A reset member is provided at one end of the rotating shaft away from the handle, the reset member is connected to the inner wall of the base, and the reset member is used to drive the handle to move so that the card block is out of the card slot; A positioning mechanism is provided at the abutment of the two side covers, and the positioning mechanism includes a positioning hole, a limiting hole, a positioning block and an elastic member. The positioning hole and the limiting hole are both provided on the same side cover, and the limiting hole is communicated with one side of the positioning hole; the positioning block and the elastic member are both provided on the other side cover, and the positioning block is connected to the other side cover via the elastic member; when the two side covers approach each other and contact each other, the positioning block is inserted into the positioning hole and compresses the elastic member until the positioning block is fully inserted into the positioning hole, and the elastic member resets and pushes the positioning block into the limiting hole.

2. The network transformer according to claim 1, characterized in that: A button is movably provided in the limiting hole, and the button is used to interfere with the positioning block and push the positioning block away from the limiting hole.

3. The network transformer according to claim 1, characterized in that: The pin includes an external connection part and an internal connection part connected to the external connection part, the external connection part protrudes from the side wall of the base, and the internal connection part protrudes from the top wall of the base; the bottom of the frame is provided with conductive holes with the same number as the internal connection parts, and the inner walls of the conductive holes are provided with multiple metal sheets, and the transformer mechanism is respectively connected to the multiple metal sheets; when the frame is installed on the base, the internal connection part is inserted into the conductive hole and contacts the metal sheet.

4. The network transformer according to claim 1, characterized in that: A socket is provided on the top of the base, a first magnet is provided in the socket, and a shielding layer is provided on the inner wall of the socket; a second magnet is provided at the bottom of the skeleton, and the second magnet is used to be inserted into the socket and magnetically connected to the first magnet.

5. The network transformer according to claim 1, characterized in that: The skeleton is made of skeleton materials, which include the following raw materials in parts by weight: 65-80 parts of PET resin, 15-20 parts of silicone epoxy resin, 12-18 parts of PVDF resin, 9-14 parts of acrylonitrile-butadiene-styrene copolymer, 8-14 parts of glass fiber, 6-12 parts of modified graphene oxide, 10-20 parts of filler, 0.4-2 parts of antioxidant and 0.4-2 parts of light stabilizer.

6. The network transformer according to claim 5, characterized in that: The antioxidant is at least one of antioxidant 1010, antioxidant 1076, antioxidant 168, antioxidant 126 and antioxidant DLTP.

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