Vehicle-mounted transformer

Abstract

A vehicle-mounted transformer comprises a magnetic core, a base, a coil, an adhesive tape, a PIN and a positioning column, the magnetic core is arranged in the base, the coil is wound on the magnetic core, the adhesive tape is arranged at the joint of the coil and the magnetic core, the PIN is connected with the bottom of one end of the base, and the positioning column is connected with the bottom of the other end of the base. Wherein the magnetic core comprises a first magnetic core, a second magnetic core and a breath gasket. Compared with the prior art, the two symmetrical C-shaped magnetic cores are used to form the square magnetic core, and a closed magnetic circuit is formed. A traditional E-shaped magnetic core middle column is omitted, so that a magnetic circuit is simple, and loss is reduced. The two independent C-shaped magnetic cores can be wound with coils separately, and the two coils can have different parameters.

Description

Technical Field

[0001] This utility model relates to the field of transformers, specifically to a vehicle-mounted transformer. Background Technology

[0002] High-efficiency transformers minimize energy loss and improve the overall energy efficiency of electric vehicles. Safety ensures the reliability of vehicles under various environmental conditions, requiring transformers with excellent insulation and durability. Compact size accommodates the limitations of vehicle interior space, facilitating installation and maintenance. Through optimized design and the application of innovative materials, modern transformers are continuously evolving to meet the stringent requirements of the new energy vehicle market.

[0003] What is needed is a transformer that can be automatically produced, has high power density, and high insulation, and more importantly, can achieve high-power electrical energy conversion in a small size.

[0004] To address the aforementioned issues, we have made a series of improvements. Utility Model Content

[0005] The purpose of this utility model is to provide a vehicle-mounted transformer to overcome the above-mentioned shortcomings and deficiencies of the prior art.

[0006] A vehicle-mounted transformer includes: a magnetic core, a base, a coil, tape, a pin, and a positioning post. The magnetic core is disposed inside the base, the coil is wound around the magnetic core, the tape is disposed at the connection between the coil and the magnetic core, the pin is connected to the bottom of one end of the base, and the positioning post is connected to the bottom of the other end of the base.

[0007] The magnetic core includes a first magnetic core, a second magnetic core, and an air pad. The first and second magnetic cores have the same structure and are C-shaped. The first and second magnetic cores are interconnected, and an air pad is provided at the connection between the first and second magnetic cores.

[0008] Furthermore, the coil is provided with a lead wire, the coil is connected to the first magnetic core and the second magnetic core respectively, and the lead wire is connected to the base.

[0009] Furthermore, the surface of the magnetic core is provided with an insulating coating.

[0010] The beneficial effects of this utility model are:

[0011] Compared with traditional technologies, this invention uses two symmetrical C-shaped magnetic cores, assembled into a U-shaped magnetic core, forming a closed magnetic circuit. This reduces the number of central pillars in the traditional E-shaped magnetic core, simplifying the magnetic circuit and reducing losses. The two independent C-shaped magnetic cores can be wound with coils separately, and the two coils can have different parameters. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is an exploded view of the structure of this utility model.

[0014] Figure 3 This is a side view of the present invention.

[0015] Figure label:

[0016] Magnetic core 100, first magnetic core 110, second magnetic core 120 and air pad 130.

[0017] Base 200, coil 300 and lead wire 310.

[0018] 400 tapes, 500 pins, and 600 positioning posts. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0020] Example 1

[0021] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 2 This is an exploded view of the structure of this utility model. Figure 3 This is a side view of the present invention.

[0022] like Figure 1 and Figure 3 As shown, a vehicle-mounted transformer includes: a magnetic core 100, a base 200, a coil 300, an adhesive tape 400, a pin 500, and a positioning post 600. The magnetic core 100 is disposed inside the base 200, the coil 300 is wound around the magnetic core 100, the adhesive tape 400 is disposed at the connection between the coil 300 and the magnetic core 100, the pin 500 is connected to the bottom of one end of the base 200, and the positioning post 600 is connected to the bottom of the other end of the base 200.

[0023] like Figure 2 As shown, the magnetic core 100 includes a first magnetic core 110, a second magnetic core 120, and an air pad 130. The first magnetic core 110 and the second magnetic core 120 have the same structure and are C-shaped. The first magnetic core 110 and the second magnetic core 120 are interconnected, and an air pad 130 is provided at the connection between the first magnetic core 110 and the second magnetic core 120.

[0024] The coil 300 is provided with a lead wire 310. The coil 300 is connected to the first magnetic core 110 and the second magnetic core 120 respectively, and the lead wire 310 is connected to the base 200.

[0025] The surface of the magnetic core 100 is coated with an insulating coating.

[0026] The innovation of this invention lies in the innovative C-shaped structure adopted by the first magnetic core 110 and the second magnetic core 120. Compared with the traditional E-shaped structure, this design reduces EMI resistance to meet the requirements of the on-board transformer of electric vehicles, resulting in greater heat dissipation and subsequent beneficial effects. It also differs from the similar U-shaped structure. Specifically, firstly, in terms of cost, the E-shaped structure is more complex and significantly more expensive than the C-shaped structure of this invention. Compared with the U-shaped structure, the skeleton structure is omitted, further optimizing costs. Secondly, this invention uses two symmetrical C-shaped structures assembled into a U-shaped magnetic core 100, forming a closed magnetic circuit. Compared to the central column structure of the E-shaped structure, this simplifies the magnetic circuit and reduces losses. Finally, there is a difference in the winding method. The two independent C-shaped structures of this invention can be wound separately, with the magnetic core placed outside the coil, allowing the two coils to have different parameters. In contrast, the traditional E-shaped structure requires the coil to be wound only on the central column. Compared with the similar U-shaped structure, the structure of this invention directly omits the skeleton. This means that the magnetic core of this invention can be produced automatically, and the assembled core is easier to manufacture and more efficient than a complete U-shaped core. Molding and winding can be carried out independently of the transformer manufacturing process, followed by assembly, significantly improving production efficiency.

[0027] These characteristics meet the requirements of trolleybus onboard transformers in terms of cost, efficiency, installation efficiency, and space utilization.

[0028] In other details, this utility model adopts a base 200 structure, with positioning posts 600 at the bottom of the base, which can hold the product on the circuit board to achieve positioning and fixation. The lead wire 310 is fixed to the base 200 with adhesive, which is also very convenient.

[0029] An insulating coating is added to the outside of the magnetic core to prevent conductivity and improve safety. Air shims 130 are installed at the connection points of the magnetic core, allowing for adjustment to achieve different inductance values.

[0030] Finally, because this invention lacks a frame and complex auxiliary materials, it has a large heat dissipation area and excellent heat dissipation effect. Furthermore, it eliminates the need for impregnation with paint, reducing production steps.

[0031] Compared with traditional technologies, this invention uses two symmetrical C-shaped magnetic cores, assembled into a U-shaped magnetic core, forming a closed magnetic circuit. This reduces the number of central pillars in the traditional E-shaped magnetic core, simplifying the magnetic circuit and reducing losses. The two independent C-shaped magnetic cores can be wound with coils separately, and the two coils can have different parameters.

[0032] The specific embodiments of this utility model have been described above, but this utility model is not limited thereto. Various changes can be made to this utility model as long as they do not depart from its spirit.

Claims

1. A vehicle-mounted transformer, characterized in that, include: The magnetic core (100), base (200), coil (300), tape (400), pin (500) and positioning post (600) are provided. The magnetic core (100) is disposed inside the base (200). The coil (300) is wound around the magnetic core (100). The tape (400) is disposed at the connection between the coil (300) and the magnetic core (100). The pin (500) is connected to the bottom of one end of the base (200). The positioning post (600) is connected to the bottom of the other end of the base (200). The magnetic core (100) includes a first magnetic core (110), a second magnetic core (120), and an air pad (130). The first magnetic core (110) and the second magnetic core (120) have the same structure. The first magnetic core (110) and the second magnetic core (120) have a C-shaped structure. The first magnetic core (110) and the second magnetic core (120) are connected to each other. An air pad (130) is provided at the connection between the first magnetic core (110) and the second magnetic core (120).

2. The vehicle-mounted transformer according to claim 1, characterized in that, The coil (300) is provided with a lead wire (310), the coil (300) is connected to the first magnetic core (110) and the second magnetic core (120) respectively, and the lead wire (310) is connected to the base (200).

3. The vehicle-mounted transformer according to claim 1, characterized in that, The surface of the magnetic core (100) is provided with an insulating coating.

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