Novel electronic transformer easy to dissipate heat

Abstract

The novel electronic transformer easy to dissipate heat comprises a framework and magnetic cores, the framework comprises a base and a reel, a through hole is formed in the reel in the center direction of the reel in a penetrating mode, a plurality of heat dissipation holes are formed in the peripheral side of the reel, the magnetic cores comprise the upper magnetic core and the lower magnetic core, and the upper magnetic core and the lower magnetic core are arranged in a staggered mode. The upper magnetic core is arranged above the winding frame and provided with an upper ventilation hole, the lower magnetic core is arranged below the winding frame and provided with a lower ventilation hole, a plurality of first air outlet holes are formed in the bottom of the base, mounting tables are further arranged on the two sides of the base, each mounting table is provided with a plurality of guide grooves, pins are arranged below the guide grooves, and the first air outlet holes are communicated with the guide grooves. The outer side of the framework is further sleeved with the shell, the upper ventilation hole, the lower ventilation hole and the through hole of the winding frame are formed in the peripheral side of the winding frame, and the air outlet holes are formed in the bottom of the base and the bottom of the lower shell, so that heat generated when the transformer works is effectively reduced, the heat dissipation effect is improved, and stable operation of the transformer in a high-temperature environment is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to an electronic transformer, in particular to a novel electronic transformer easy to radiate heat. BACKGROUND

[0002] A transformer is a device that transforms voltage, current and impedance. The transformer is composed of a magnetic core and a coil, and the coil includes a coil winding and a skeleton (if necessary). The coil winding generally has two or more than two windings. The magnetic core and the coil are collectively referred to as the transformer body, which is the basis for establishing a magnetic field and transmitting energy.

[0003] With the development of power electronic technology, the application range and technical requirements of the transformer are continuously improved. Due to the limitation of structural design, the heat dissipation efficiency of the traditional quick assembly type transformer is low. Under high load or high frequency working conditions, heat is easily accumulated inside the transformer, which leads to performance degradation or even damage. SUMMARY

[0004] The utility model discloses a novel electronic transformer easy to radiate heat, which solves the above technical problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a novel electronic transformer easy to radiate heat, comprising a skeleton and a magnetic core, the skeleton comprises a base and a winding frame, the winding frame is provided with a through hole along the central direction, a plurality of heat dissipation holes are formed on the side of the winding frame, the magnetic core comprises an upper magnetic core and a lower magnetic core, the upper magnetic core is arranged above the winding frame and is provided with an upper ventilation hole, the lower magnetic core is arranged below the winding frame and is provided with a lower ventilation hole, a plurality of first air outlets are arranged on the bottom of the base, installation platforms are further formed on both sides of the base, a plurality of guide grooves are arranged on the installation platforms, a pin is arranged below each guide groove, and an outer shell is further sleeved on the outside of the skeleton.

[0006] Preferably, the outer shell comprises an upper shell and a lower shell, the upper shell and the lower shell are connected by snap fit, and a plurality of second air outlets are formed on the bottom of the lower shell.

[0007] Preferably, twisted enameled wires are arranged on the winding frame.

[0008] Preferably, the upper magnetic core, the lower magnetic core and the skeleton are made of high thermal conductivity material.

[0009] Preferably, heat dissipation fins are further arranged at the connection between the bottom of the base and the lower magnetic core.

[0010] Preferably, a layer of thermal conductive silicone grease is arranged on the contact surface of the upper magnetic core and the lower magnetic core.

[0011] Preferably, the pin is in Z shape.

[0012] Compared with the prior art, the electronic transformer has the advantages that

[0013] The electronic transformer has the advantages that BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative labor.

[0015] Figure 1 is a schematic view of the whole embodiment of the present application;

[0016] Figure 2 is a side view of the skeleton and the magnetic core of the present embodiment;

[0017] Figure 3 is a schematic view of the winding frame of the present embodiment;

[0018] Figure 4 is a top view of the winding frame of the present embodiment;

[0019] Figure 5 is a bottom view of the base of the present embodiment;

[0020] Figure 6 is a top view of the upper magnetic core of the present embodiment;

[0021] Figure 7 is a bottom view of the whole embodiment of the present application;

[0022] Figure 8 is a bottom view of the lower magnetic core of the present embodiment.

[0023] In the drawings, the components represented by each reference numeral are listed as follows:

[0024] 1, skeleton; 2, magnetic core; 3, base; 4, bobbin; 5, through hole; 6, heat dissipation hole; 7, upper magnetic core; 8, lower magnetic core; 9, upper ventilation hole; 10, first air outlet; 11, mounting table; 12, guide groove; 13, pin; 14, shell; 15, upper shell; 16, lower shell; 17, second air outlet; 18, stranded enameled wire; 19, heat sink; 20, heat-conducting silicone layer; 21, lower ventilation hole. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figures 1-8 The utility model provides a kind of technical scheme: a kind of novel electronic transformer easy to dissipate heat, including skeleton 1 and magnetic core 2, skeleton 1 includes base 3 and bobbin 4, through hole 5 is provided with along the central direction of bobbin 4, a plurality of heat dissipation holes 6 are set up on the side of bobbin 4, magnetic core 2 includes upper magnetic core 7 and lower magnetic core 8, upper magnetic core 7 is set in the upper of bobbin 4 and is set with upper ventilation hole 9, lower magnetic core 8 is set in the lower of bobbin 4 and is set with lower ventilation hole 21, base 3 bottom is provided with a plurality of first air outlet 10, base 3 both sides are also set with mounting table 11, mounting table 11 is provided with a plurality of guide grooves 12, guide groove 12 below is provided with pin 13, skeleton 1 outside is also sleeved with shell 14.

[0027] Specifically, shell 14 includes upper shell 15 and lower shell 16, upper shell 15 and lower shell 16 buckle connection, lower shell 16 bottom is set with a plurality of second air outlet 17, by being divided into upper shell 15 and lower shell 16, upper shell 15 and lower shell 16 buckle connection, more convenient magnetic core 2 and the installation of skeleton 1, so that assembly process is simple and fast.

[0028] Specifically, bobbin 4 is provided with stranded enameled wire 18, by using stranded enameled wire 18, to reduce the skin effect of whole, improve the current-carrying capacity of inductance.

[0029] Further, upper magnetic core 7, lower magnetic core 8 and skeleton 1 all adopt high-thermal-conductivity material, can adopt manganese zinc ferrite, by the application of manganese zinc ferrite, can significantly improve the heat dissipation effect, so that the whole heat dissipation effect of electronic transformer is better, guarantee the stable operation of transformer under high temperature environment.

[0030] Further, the bottom of the base 3 is provided with a fin 19 at the joint with the lower magnetic core 8, and the contact surface of the upper magnetic core 7 and the lower magnetic core 8 is provided with a heat-conducting silicone grease layer 20, so that the heat dissipation performance of the electronic transformer is further enhanced, and the temperature of the transformer is ensured to be within a safe range during long-time operation or high-load state, thereby prolonging the service life of the transformer.

[0031] Specifically, the pin 13 is provided in a Z shape, so that the contact area of the pin 13 and the circuit board is increased, thereby improving the stability and reliability of the connection, and the Z-shaped pin 13 can also absorb stress on the circuit board to a certain extent, thereby reducing the problem of poor contact caused by vibration or impact.

[0032] One specific application example of the embodiment is as follows:

[0033] First, the lower magnetic core 8 is placed on the base 3 and is ensured to be in close contact with the fin 19, then the bobbin 4 is placed above the lower magnetic core 8, and the guide slot 12 of the bobbin 4 is ensured to be aligned with the pin 13 on the mounting table 11.

[0034] After the assembly of the magnetic core 2 and the bobbin 4 is completed, the upper shell 15 and the lower shell 16 of the shell 14 are buckled and connected, and the second air outlet 17 is ensured to correspond to the air outlet of the base 3, so as to facilitate heat dissipation.

[0035] In the description of the utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0036] In the utility model, unless another definite provision and limitation, the term "installation", "arrangement", "connection", "fixation", "screw connection" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element inside's intercommunication or two element's mutual action relation, unless another definite limitation, for the ordinary skill of the person of the art, can understand the above-mentioned term in the utility model specific meaning according to specific circumstances.

[0037] Although the embodiments of the utility model have been shown and described, it will be appreciated by those of ordinary skill in the art that changes can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A new electronic transformer which is easy to dissipate heat, characterized in that: The utility model relates to a magnetic core cooling device, including skeleton (1) and magnetic core (2), skeleton (1) includes base (3) and bobbin (4), the through -hole (5) is set along the center direction of bobbin (4) and is equipped with, bobbin (4) is equipped with a plurality of heat dissipation holes (6) on the week side, the magnetic core (2) includes upper magnetic core (7) and lower magnetic core (8), upper magnetic core (7) is set in the upper of bobbin (4), upper magnetic core (7) is equipped with upper vent hole (9), lower magnetic core (8) is set in the lower of bobbin (4), lower magnetic core (8) is equipped with lower vent hole (21), the bottom of base (3) is equipped with a plurality of first air outlet (10), the both sides of base (3) are also equipped with mounting table (11), mounting table (11) is equipped with a plurality of guide slot (12), the needle foot (13) of guide slot (12) below is all set up, the outside of skeleton (1) still has the shell (14) of sleeve joint.

2. A novel electronic transformer that is easy to dissipate heat according to claim 1, characterized in that: The shell (14) includes an upper housing (15) and a lower housing (16), the upper housing (15) and the lower housing (16) are connected by snap-fit, the lower housing (16) is provided with a plurality of second air outlets (17) at the bottom.

3. A novel electronic transformer with easy heat dissipation as claimed in claim 1 wherein: The bobbin (4) is provided with twisted enameled wire (18).

4. A novel electronic transformer of easy heat dissipation as claimed in claim 1 wherein: The upper magnetic core (7), the lower magnetic core (8) and the skeleton (1) are made of high thermal conductivity material.

5. A novel electronic transformer of easy heat dissipation as claimed in claim 1 wherein: The base (3) is further provided with a cooling fin (19) at the bottom and the connection with the lower magnetic core (8).

6. A new electronic transformer of easy heat dissipation as claimed in claim 1 wherein: The upper magnetic core (7) and the lower magnetic core (8) are provided with a layer of thermal conductive silicone grease (20) on the contact surface.

7. A new electronic transformer of easy heat dissipation as claimed in claim 1 wherein: The needle foot (13) is in Z shape.

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