Driving transformer

Abstract

The utility model discloses a driver transformer, which relates to the technical field of transformers and comprises a shell, a ferrite magnetic ring, an insulated wire, epoxy resin glue and an upper cover, a mounting groove is arranged along the end face of the shell, the insulated wire is wound on the ferrite magnetic ring, the ferrite magnetic ring with the insulated wire is arranged in the mounting groove, and the upper cover is arranged in the mounting groove. The upper cover covers a notch of the mounting groove, and epoxy resin glue is poured at a center hole of the ferrite magnetic ring, so that the shell, the ferrite magnetic ring, the insulated wire and the upper cover are connected into an integral structure through the epoxy resin glue; the added upper cover provides possibility for automatic feeding and discharging of products, the feeding and discharging requirements on an industrial automatic production line are met, the shell, the ferrite magnetic ring, the insulating wire and the upper cover are connected into an integrated structure through epoxy resin glue, and the overall stability is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field, concretely is a kind of drive transformer. BACKGROUND

[0002] Transformer is the key component in power system and electronic equipment, bears voltage transformation, current transformation, impedance transformation and electrical isolation and other core functions, is widely used in various electrical appliances.Drive transformer as important branch among them, in switching power supply, electronic ballast, inverter and other equipment, responsible for conveying drive signal for power switch tube, ensure that equipment normal operation and efficient conversion of energy.

[0003] Traditional drive transformer is generally composed of magnetic core, winding and shell.Magnetic core adopts ferrite, silicon steel sheet and other materials, provides passage for magnetic field;Winding is by insulated wire winding on magnetic core, realizes energy transfer using electromagnetic induction;Shell plays the role of protection and electromagnetic shielding.However, traditional drive transformer has many defects in structure and manufacturing process.

[0004] On the one hand, its internal components are not stable enough.Winding and magnetic core are only fixed by wire winding, under long-term use, mechanical vibration or impact, winding is easy to loosen and displace, resulting in change of transformer electrical performance, affect work reliability.Especially small or special application drive transformer, internal space is narrow, traditional connection mode is difficult to guarantee mechanical strength and electrical performance in compact space.

[0005] On the other hand, traditional packaging process is simple, and the protection of internal components is insufficient.In high temperature, high humidity, strong electromagnetic interference and other complex environments, magnetic core and winding are easy to be affected, shorten service life.Moreover, the connection mode of shell and internal components cannot effectively block dust and moisture from entering, which is easy to cause short circuit, insulation damage and other faults.

[0006] In addition, in the current industrial automation production, traditional drive transformer is difficult to meet the needs of feeding and discharging on automatic production line.Because its structure design does not consider automation operation, it lacks structure convenient for automatic equipment to grab and place, so that feeding and discharging process is often completed by manual operation in production process, which not only increases labor cost, but also reduces production efficiency, easily introduces human error, affects product quality consistency.

[0007] Therefore, it is necessary to provide an improved technical scheme to solve the above problems. UTILITY MODEL CONTENT

[0008] The utility model aims at providing a technical scheme to solve the above problems.

[0009] The utility model provides a drive transformer, including shell, ferrite magnetic ring, insulating wire, epoxy resin glue and upper cover, install the recess groove along the end surface of shell, the insulating wire is coiled in ferrite magnetic ring, and the ferrite magnetic ring with insulating wire is built -in in the installation recess groove, the upper cover covers to the slot position of installation recess groove, wherein, the epoxy resin glue is casted at the center hole of ferrite magnetic ring, to make the shell, ferrite magnetic ring, insulating wire and upper cover connect into an integral structure through the epoxy resin glue.

[0010] As the utility model further scheme: the upper cover is partially covered in the slot of installation recess groove, to make the slot of installation recess groove correspond the both sides of upper cover and form the wire passing -through port for insulating wire, wherein, the both sides of shell are all provided with the pin respectively, and the lead wire of insulating wire passes through the wire passing -through port and is connected with the pin.

[0011] As the utility model further scheme: the both sides of the end surface of shell correspond the installation groove and are all respectively provided with the boss structure, and the two boss structures are oppositely arranged and surround and form the butt joint groove for upper cover.

[0012] As the utility model further scheme: the both ends of upper cover are extended to form the extension, and the extension is butted to the inner side of boss structure.

[0013] Wherein, the boss structure is '' character type shape.

[0014] As the utility model further scheme: the end surface of shell correspond the inner side of boss structure and is provided with the recess position, and the epoxy resin glue is also casted at the recess position.

[0015] As the utility model further scheme: the wire passing -through groove that communicates in wire passing -through port is set up along the wall of shell, and the plastic wire protection sleeve is embeddedly connected at the wire passing -through groove.

[0016] As the utility model further scheme: the edge portion of upper cover is provided with the heat dissipation fin around the central region of upper cover.

[0017] Compared with the prior art, the utility model has the advantages of the following:

[0018] 1) the epoxy resin glue connects each component into an integral whole, greatly improves the structural stability of drive transformer, in the long -term use process, even if the mechanical vibration, impact and other external force, winding is not easy to loosen, displacement, thereby guarantee the stability of transformer electrical performance, improves the work reliability, for small -size or special application drive transformer, can guarantee good mechanical strength and electrical performance in the compact space.

[0019] 2) The upper cover is covered to the mounting groove, and a relatively closed space is formed with the shell, which effectively blocks impurities such as dust and moisture from entering the inside of the transformer to a certain extent, reduces faults such as short circuit and insulation damage caused by impurities, and prolongs the service life of the transformer. The protective performance of the drive transformer is more obvious in complex environments such as high temperature, high humidity and strong electromagnetic interference;

[0020] 3) The upper cover provides the possibility of automatic feeding and discharging for the product. By reasonably designing the structure of the upper cover, for example, setting a flat, groove or protrusion structure convenient for grabbing, the automatic equipment can accurately and conveniently grab and place the drive transformer, meeting the needs of feeding and discharging on the industrial automatic production line. This not only reduces labor costs, improves production efficiency, but also reduces human errors and ensures the consistency of product quality.

[0021] The additional aspects and advantages of the present application will be partially given in the following description, and some will become apparent from the following description, or will be understood by those skilled in the art through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0023] Figure 1 is a structural schematic diagram of the present application;

[0024] Figure 2 is an explosion structural schematic diagram of the present application;

[0025] Figure 3 is a structural schematic diagram of the wire passing groove in the present application;

[0026] Figure 4 is a structural schematic diagram of the heat dissipation fin in the present application.

[0027] The reference signs and names in the drawings are as follows:

[0028] 1, shell; 2, ferrite magnetic ring; 3, insulating wire; 4, epoxy resin glue; 5, upper cover; 6, mounting groove; 7, wire passing port; 8, pin; 9, boss structure; 10, butt joint groove; 11, extension; 12, groove position; 13, wire passing groove; 14, plastic wire protection sleeve; 15, heat dissipation fin. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model.

[0030] Please refer to Figures 1-4 In the embodiments of the present utility model, a driving transformer comprises a shell 1, a ferrite magnetic ring 2, an insulating wire 3, epoxy resin glue 4 and an upper cover 5. A mounting groove 6 is formed in the end face of the shell 1. The insulating wire 3 is wound on the ferrite magnetic ring 2, and the ferrite magnetic ring 2 with the insulating wire 3 is built-in the mounting groove 6. The upper cover 5 is covered to the slot position of the mounting groove 6. The central hole of the ferrite magnetic ring 2 is filled with the epoxy resin glue 4, so that the shell 1, the ferrite magnetic ring 2, the insulating wire 3 and the upper cover 5 are connected into an integral structure through the epoxy resin glue 4.

[0031] In the technical solutions of the present utility model, the epoxy resin glue 4 is poured in the central hole of the ferrite magnetic ring 2. The shell 1, the ferrite magnetic ring 2, the insulating wire 3 and the upper cover 5 are connected into an integral structure by using the strong bonding property of the epoxy resin glue 4 after solidification. This way makes the combination between each component more compact, and enhances the stability of the whole. The traditional connection mode between components of the driving transformer is relatively loose. When subjected to external vibration and impact, the components are prone to displacement. However, the design realizes the stable connection of each component through the epoxy resin glue 4, effectively avoiding the problems caused by loose components.

[0032] The end face of the shell 1 is provided with the mounting groove 6 for placing the ferrite magnetic ring 2 with the insulating wire 3. This design provides a stable installation space for the internal core components, and also facilitates subsequent assembly. The upper cover 5 is covered to the slot position of the mounting groove 6, further protecting the internal components. The existence of the upper cover 5 also provides a structural basis for automatic feeding and discharging. By designing appropriate shape and size of the upper cover 5, the automatic equipment can be conveniently grabbed and placed.

[0033] In summary, the epoxy resin glue 4 connects each component into a whole, greatly improves the structural stability of the drive transformer, and even if subjected to mechanical vibration, impact and other external forces during long-term use, the winding is not easy to loosen and displace, thereby ensuring the stability of the electrical performance of the transformer and improving the working reliability. For small or special application drive transformers, good mechanical strength and electrical performance can be ensured in a compact space; the upper cover 5 is covered to the mounting groove 6, forming a relatively closed space with the shell 1, which effectively blocks the entry of dust, moisture and other impurities into the transformer to a certain extent, reduces the short circuit, insulation damage and other faults caused by the entry of impurities, and prolongs the service life of the transformer. The protective performance advantage of the drive transformer is more obvious in complex environments such as high temperature, high humidity and strong electromagnetic interference; the added upper cover 5 makes it possible to realize automatic feeding and discharging of the product. By reasonably designing the structure of the upper cover 5, such as setting a flat surface, a groove or a protrusion structure convenient for grabbing, the automatic equipment can accurately and conveniently grab and place the drive transformer, meeting the feeding and discharging requirements of the industrial automatic production line. This not only reduces the labor cost and improves the production efficiency, but also reduces the human error and ensures the consistency of product quality.

[0034] In the embodiment of the utility model, the upper cover 5 is partially covered in the slot of the mounting groove 6, so that the slot of the mounting groove 6 corresponds to the two sides of the upper cover 5 to form a wire passing port 7 acting on the insulation wire 3, wherein the shell 1 is provided with a pin 8 on each side, and the lead of the insulation wire 3 is connected with the pin 8 through the wire passing port 7.

[0035] The upper cover 5 partially covers the slot of the mounting groove 6 to form the wire passing port 7, which is based on the consideration of the planning of the lead connection path of the insulation wire 3. The insulation wire 3 is wound on the ferrite magnetic ring 2, and the lead thereof needs to be connected with the pins 8 on the two sides of the shell 1 to realize electrical connection. The setting of the wire passing port 7 provides a special channel for the lead, ensuring that the lead can extend in order from the magnetic ring position to the pin 8, avoiding problems such as winding and short circuit caused by random arrangement of the lead in the transformer. The pins 8 are arranged on the two sides of the shell 1 to realize the connection between the drive transformer and the external circuit. The lead of the insulation wire 3 is connected with the pin 8 through the wire passing port 7. This connection mode utilizes the good conductivity of the pin 8, can stably transmit the electromagnetic signal in the transformer to the external circuit, and guarantees the normal work of the drive transformer in the entire circuit system.

[0036] In the embodiment of the utility model, the end face of the shell 1 and the two sides of the mounting groove correspondingly protrude to form a boss structure 9, and the two boss structures 9 are oppositely arranged and surround to form a butt joint groove 10 acting on the upper cover 5.

[0037] The boss structure 9 is arranged on the end face of the shell 1 to provide a positioning and supporting base for the upper cover 5, and the boss structure 9 can increase the contact area and connecting points between the shell 1 and the upper cover 5, so that the upper cover 5 is more stable after installation and can bear certain external force, thereby ensuring the stability of the entire drive transformer structure.

[0038] The two opposite bosses surround to form the docking groove 10, and the principle is to provide a precise docking position for the upper cover 5; the upper cover 5 cooperates with the docking groove 10, so that the upper cover 5 can be accurately installed at the specified position, precise docking with the shell 1 is realized, the position accuracy of the wire passing port 7 and other structures is ensured, the lead wire 3 can be smoothly connected with the pin 8 through the wire passing port 7, and the automatic equipment can be accurately and conveniently grabbed and placed to realize automatic operation.

[0039] In the embodiment of the utility model, the two ends of the upper cover 5 are extended to form an extension part 11, and the extension part 11 is docked to the inner side of the boss structure 9.

[0040] The boss structure 9 is in the shape of a Chinese character “fang”.

[0041] The two ends of the upper cover 5 are extended to form the extension part 11, which is mainly to realize more close and stable cooperation with the boss structure 9 on the shell 1, the extension part 11 can increase the contact area of the upper cover 5 and the boss structure 9, so that the upper cover 5 can be better fixed on the shell 1 after installation, and the upper cover 5 is prevented from shaking or displacing during use.

[0042] The boss structure 9 is designed in the shape of a Chinese character “fang”, which can provide a suitable docking space for the extension part 11, the extension part 11 can be embedded in the inner side of the boss structure 9 in the shape of a Chinese character “fang” to realize precise docking, and on the other hand, the structure shape in the shape of a Chinese character “fang” has good mechanical properties, can bear certain external force, and can buffer the impact and vibration from the outside to a certain extent to protect the internal core, winding and other components.

[0043] In the embodiment of the utility model, the recess position 12 is arranged on the end face of the shell 1 and corresponds to the inner side of the boss structure 9, and the epoxy resin glue 4 is also poured at the recess position 12.

[0044] The epoxy resin glue 4 is poured at the recess position 12, which is equivalent to increasing more bonding points and bonding areas between the upper cover 5 and the shell 1, the epoxy resin glue 4 itself has strong adhesion, and can tightly bond the upper cover 5 and the shell 1 together after solidification, so that the connection of the two is more stable.

[0045] The existence of the recessed position 12 can make the epoxy resin glue 4 better fill the tiny gap possibly existing between the upper cover 5 and the shell 1, make the cooperation between the upper cover 5 and the shell 1 more closely, eliminate the relative movement or shaking possibly caused by the gap, and thus realize more accurate and stable connection.

[0046] In one embodiment of the utility model embodiment, a wire passing groove 13 is arranged in the wall of the shell 1 and is communicated with the wire passing hole 7, and a plastic wire protection sleeve 14 is embedded and connected at the wire passing groove 13.

[0047] The wire passing groove 13 is arranged to provide a directional channel for the insulation wire 3 from the wire passing hole 7 to other positions, so that the insulation wire 3 is more regular and orderly, and problems such as mutual entanglement and abrasion of the insulation wire 3 caused by random arrangement of the insulation wire 3 on the surface of the shell 1 are avoided, and the insulation wire 3 is also convenient for centralized management and protection.

[0048] The plastic wire protection sleeve 14 is generally made of plastic material with certain flexibility and wear resistance, and is embedded and connected at the wire passing groove 13, which utilizes the material properties to protect the insulation wire 3. The plastic wire protection sleeve 14 can buffer the extrusion and friction of the insulation wire 3 from the outside, prevent the outer skin of the insulation wire 3 from being scratched and torn, and thus ensure the insulation performance and electrical performance of the insulation wire 3.

[0049] In one embodiment of the utility model embodiment, the edge portion of the upper cover 5 is provided with a heat dissipation fin 15 around the central region of the upper cover 5.

[0050] Without affecting the accurate and convenient grabbing and placing of the drive transformer by the automatic equipment (such as grabbing in the central region of the upper cover 5), the heat dissipation fin 15 is arranged at the edge portion, so that the working temperature of the drive transformer is effectively reduced, and problems such as performance degradation of internal core, winding and other components and accelerated insulation aging caused by overheating are avoided.

[0051] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.

Claims

1. A drive transformer, characterized by The application relates to a ferrite magnetic ring, which comprises a shell, a ferrite magnetic ring, an insulating wire, epoxy resin glue and an upper cover, a mounting groove is arranged on the end surface of the shell, the insulating wire is wound on the ferrite magnetic ring, the ferrite magnetic ring with the insulating wire is arranged in the mounting groove, and the upper cover covers the slot position of the mounting groove, wherein the epoxy resin glue is poured in the central hole of the ferrite magnetic ring, so that the shell, the ferrite magnetic ring, the insulating wire and the upper cover are connected into an integrated structure through the epoxy resin glue.

2. A drive transformer according to claim 1, characterised in that The upper cover is partially covered on the slot of the mounting groove, so that the slot of the mounting groove corresponds to the two sides of the upper cover to form wire passing ports for the insulating wire, wherein the shell is provided with pins on the two sides respectively, and the lead wire of the insulating wire is connected with the pins through the wire passing ports.

3. A drive transformer according to claim 1 or 2, characterised in that The end surface of the shell is provided with a boss structure on the two sides corresponding to the mounting groove respectively, the two boss structures are oppositely arranged and surround to form a butt joint groove for the upper cover.

4. A drive transformer according to claim 3, characterised in that The two ends of the upper cover are extended to form extension parts, and the extension parts are butted to the inner side of the boss structure. The boss structure is in the shape of a Chinese character 'fang'.

5. A drive transformer according to claim 4, characterised in that The end surface of the shell is provided with a groove position corresponding to the inner side of the boss structure, and the epoxy resin glue is also poured in the groove position.

6. A drive transformer according to claim 2, characterised in that A wire passing groove is arranged on the wall of the shell and communicated with the wire passing port, and a plastic wire sleeve is embedded and connected in the wire passing groove.

7. A drive transformer according to claim 1, characterized in that The edge part of the upper cover is provided with a heat dissipation fin around the central area of the upper cover.

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