CN206807092U - A kind of charger - Google Patents

Abstract

The utility model discloses a charging machine, which comprises: a radiator, a frame, a heating device and a plurality of circuit module components; wherein, the radiator includes a radiator substrate; the frame is installed on the radiator substrate, and the frame includes multiple A module placement area divided according to the location area; a heating device mounted on the surface of the substrate and located in the frame; a plurality of circuit module components are correspondingly installed in the module placement area according to their maintenance frequency. The charger has a modular design for its electronic components, and different areas of the frame are set according to different maintenance frequencies, so the weight and volume of the charger can be reduced. At the same time, the charger concentrates and mounts heat-generating components on the heat dissipation substrate, which is beneficial to the heat dissipation of the charger and improves the service life of the charger.

Description

a charger

technical field

The utility model relates to the technical field of power electronics, in particular to a charger.

Background technique

At present, the on-board auxiliary power system of rail vehicles mainly includes: auxiliary inverter and battery charger. The auxiliary inverter provides 380V AC power supply for the train air conditioner, cooling fan, lighting and other equipment, and the battery charger is used to charge the battery and supply power to the 110V bus load.

With the development of the rail vehicle industry, it is required to improve the reliability of equipment and reduce maintenance time to improve operating efficiency; to reduce the weight of on-board equipment to reduce energy consumption during operation; to minimize noise and vibration during vehicle operation. Improve comfort. However, due to the unreasonable design of the traditional power frequency transformer battery charger, its total weight and volume are relatively large. At the same time, the heat dissipation of the existing battery charger is also poor, which affects the service life of the battery charger. Therefore can not satisfy the development of present rail vehicle industry.

Utility model content

The embodiment of the utility model provides a charger to meet the development requirements of the rail vehicle industry.

In a first aspect, a charger is provided, which includes:

radiators, including radiator substrates;

a frame installed on the heat sink substrate, which includes a plurality of module placement areas divided by location areas;

a heating device mounted on the surface of the heat sink substrate and located in the frame;

A plurality of circuit module assemblies are correspondingly installed in the module placement area according to their maintenance frequency.

In the charger of the present invention, the plurality of circuit module components include: input and pre-charging circuit components, capacitor components, voltage detection components, drive circuit components, and output and detection circuit components; the module placement area includes: layer drop zone and intermediate drop zone;

The input and precharge circuit components, voltage detection components, drive circuit components, and output and detection circuit components are installed in the outer placement area, and the capacitor components are installed in the middle placement area, wherein the input and precharge circuit components, The overhaul frequency of the voltage detection component, the drive circuit component and the output and detection circuit component is greater than that of the capacitor component.

In the charger of the utility model, a window is opened on the frame, and the window is corresponding to the drive circuit assembly; hole.

In the charger of the present invention, the charger further includes: a box body, and the charger is detachably installed in the box body.

In the charger of the present invention, the box is provided with an air duct, and when the charger is installed in the box, the radiator is located in the air duct.

In the charging machine of the present invention, the frame is provided with a first slide rail, and the first slide rail is provided with a first slide condition; the box body is provided with a second slide rail, and the second The slide rail is provided with a second slide condition; by cooperation of the first slide condition and the second slide condition, the charger is detachably installed in the box.

In the charger of the present invention, the charger further includes: a temperature detection module, the temperature detection module is arranged on the radiator substrate to detect the temperature of the radiator substrate.

In the charger of the utility model, a plurality of ventilation holes are opened on the frame.

In the charger of the utility model, the heating device includes: an insulated gate bipolar transistor, a diode, a high-power resistor, a resonant transformer and a BOOST inductor.

In the charger of the present invention, the radiator includes a finned radiator, a heat pipe radiator or a water-cooled radiator.

The embodiment of the present invention provides a charging machine, which includes: a radiator, a frame, a heating device and a plurality of circuit module assemblies; wherein, the radiator includes a radiator substrate; the frame is installed on the radiator substrate, the The frame includes a plurality of module placement areas divided by location areas; the heating device is mounted on the surface of the substrate and located in the frame; a plurality of circuit module assemblies are correspondingly installed in the module placement area according to their maintenance frequency. The charger has a modular design for its electronic components, and different areas of the frame are set according to different maintenance frequencies, so the weight and volume of the charger can be reduced. At the same time, the charger concentrates and mounts the heat-generating components on the heat dissipation substrate, which is beneficial to the heat dissipation of the charger and improves the service life of the charger.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of the utility model. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

Fig. 1 is a schematic diagram of the appearance structure of a charger provided by an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a charger provided by an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a substrate of a charger provided by an embodiment of the present invention;

Fig. 4 is another schematic diagram of the structure of a charger provided by the embodiment of the present invention;

Fig. 5 is a schematic diagram of the installation structure of a charger provided by the embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. . Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprising" indicate the presence of described features, integers, elements and/or components, but do not exclude one or more other features. , whole, element, component and/or the presence or addition of a collection thereof.

The charger in this embodiment is a battery charger, specifically a high-frequency battery charger, which is used to charge a battery or provide a DC voltage to a load. Specifically, the charger can be applied in the rail vehicle industry or similar power electronics industry.

Please refer to Fig. 1 and Fig. 2, Fig. 1 and Fig. 2 are a schematic diagram of the appearance structure and structure of a charger provided by the embodiment of the present invention. As shown in Figures 1 and 2, the charger 10 includes: a radiator 12, a frame 13, a heating device 14 and a plurality of circuit module assemblies 15, wherein the radiator 12 is a finned radiator, which includes a radiator substrate 11 and a plurality of fins disposed on the heat sink substrate 11 .

Among them, the frame 13 is installed on the substrate 11, and the frame 13 includes a plurality of module placement areas divided by location areas; the heating device 14 is mounted on the surface of the radiator substrate 11 and is located in the frame 13; a plurality of circuit module assemblies 15, according to Its maintenance frequency is correspondingly installed in the module placement area.

In this embodiment, the substrate 11 is a metal substrate, such as an aluminum alloy substrate.

In some embodiments, the radiator 12 can also be a heat pipe radiator or a water-cooled radiator.

In this embodiment, specifically, the frame 13 is fixedly mounted on a side surface of the heat sink substrate 11 by screws, and the side surface is opposite to the surface on which the fins are arranged. The heat generating device 14 is mounted on the surface of the substrate 11 by screw fixing, and in some embodiments, it can also be mounted by other methods, which are not limited here.

In this embodiment, the circuits and electronic components involved in the charger 10 are modularized according to their functions, that is, a plurality of circuit module assemblies 15 are designed to facilitate the miniaturization design of the charger; The optimized design is also convenient for installation; according to the different maintenance frequencies of multiple circuit module assemblies 15, they are correspondingly installed in different module placement areas, which is convenient for future maintenance and operation.

In this embodiment, the heating element 14 of the charger can be understood as an electronic component that generates relatively large heat in the charger. These electronic components are independent of the modular design and mounted on the surface of the radiator substrate 11 The fins provided on the other surface of the heat sink substrate 11 can quickly dissipate the heat of relatively large electronic components. Therefore, the charger can centrally dissipate heat from the heating device 14, improving the heat dissipation efficiency of the charger.

In the charging machine of the above embodiment, its electronic components are modularized, and different areas of the frame are set according to the different maintenance frequencies, which can facilitate future maintenance and improve maintenance efficiency; at the same time, the transformer in the charging machine is a high-frequency transformer, which can reduce The weight and volume of a small charger. At the same time, the charger concentrates and mounts the heat-generating components on the heat dissipation substrate, which is beneficial to the heat dissipation of the charger and improves the service life of the charger.

Please refer to FIG. 3 and FIG. 4, and describe the charger in detail in combination with FIG. 3 and FIG. 4. As shown in FIG. Diode 142 , high power resistor 143 , resonant transformer 144 and BOOST inductor 145 . These large thermal devices are all in contact with the radiator substrate 11, and their heat will be transferred to the radiator 12 through the radiator substrate 11, and then dissipated through the fins of the radiator 12 to achieve the effect of concentrated heat dissipation.

As shown in Figure 4, the plurality of said circuit module assemblies 15 include: input and precharge circuit assembly 151, capacitor assembly 152, voltage detection assembly 153, drive circuit assembly 154 and output and detection circuit assembly 155; wherein, input and The inspection frequency of the pre-charging circuit assembly 151 , the voltage detection assembly 153 , the driving circuit assembly 154 , and the output and detection circuit assembly 155 is higher than that of the capacitor assembly 152 , which means that the capacitor assembly 152 is less likely to fail. The module placement area of the frame 13 includes: an outer layer placement area and a middle placement area. Correspondingly, the input and precharging circuit assembly 151, the voltage detection assembly 153, the drive circuit assembly 154, and the output and detection circuit assembly 155 are installed in the outer placement area, and the capacitor assembly 152 is installed in the middle placement area, and the components that are prone to failure are installed outside. layer, so it is convenient for future maintenance and replacement, and improves maintenance efficiency.

In some embodiments, the plurality of circuit module components 15 can also be divided in other ways according to their functions, and the five components involved in this embodiment do not constitute a limitation to the charger circuit. Among them, the five components involved in this embodiment can be further compared to obtain their more specific maintenance frequency. According to more specific frequency of maintenance, the frame is correspondingly detailed and installed accordingly.

In this embodiment, as shown in FIG. 4 , the frame 13 is provided with at least two first sliding rails 130 , and the number of the first sliding rails 130 is at least two, and the first sliding rails 130 are provided with first sliding conditions 131 . Wherein, the materials of the first sliding rail 130 and the first sliding condition 131 are different, for example, the first sliding rail 130 is made of metal, and the first sliding condition 131 is made of polytetrafluoroethylene.

Please refer to FIG. 5 . FIG. 5 is a schematic diagram of an installation structure of a charger provided by an embodiment of the present invention. As shown in FIG. 5 , a window 132 is opened on the frame 13 , and the window 132 corresponds to the driving circuit assembly 153 , and the window 132 is convenient for maintenance of the driving circuit assembly. A blocking piece 133 is installed on the window 132, and a plurality of through holes 1330 are opened on the blocking piece 133, which is beneficial to heat dissipation.

In this embodiment, as shown in Figure 5, the charger also includes a box body 20, the charger 10 is detachably installed in the box body 20, and the box body 20 is installed with other equipment, Figure 5 is a part of the box body, The box body 20 can be made of metal. The box body 20 is provided with an air duct 21 , when the charger 10 is installed in the box body 20 , the radiator 12 is located in the air duct 21 , and the heat of the radiator is quickly taken away by the forced wind in the air duct 21 .

In this embodiment, as shown in FIG. 5, a second slide rail 200 is provided on the box body 20, and the second slide rail 200 is provided with a second slide condition 201, wherein the second slide rail 200 and the second slide condition 201 The materials are different. For example, the second sliding rail 200 is made of metal, and the second sliding condition 201 is made of polytetrafluoroethylene. The coefficient of sliding friction of polytetrafluoroethylene is smaller than that of metal. Through the cooperation of the first sliding condition 131 and the second sliding condition 201 , the charger 10 can be easily pushed to the installation position of the box body, and the charger 10 can be detachably installed in the box body 20 by screws.

In this embodiment, as shown in FIG. 2 , a plurality of ventilation holes 136 are provided on the frame 13 to facilitate heat dissipation of the circuit components.

In this embodiment, the charger further includes: a temperature detection module, which is connected to the main control circuit of the charger, and when the detected temperature is higher than a certain preset threshold, an over-temperature protection program is started by the main control unit , to protect the charger. Specifically, after the design of the charger is completed, it is started to work at full load for a period of time until it stabilizes, then the temperature on the entire substrate is measured with a thermocouple, and the temperature detection module is set at the highest temperature of the substrate to detect the temperature of the substrate. temperature.

The above is only a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any person familiar with the technical field can easily think of various Equivalent modifications or replacements shall all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (10)

1. A kind of 1. charger, it is characterised in that including：

   Radiator, including radiator base plate；

   Framework, on the radiator base plate, it includes the module rest area of multiple opsition dependent region divisions；

   Heater members, it is mounted on the radiator base plate surface and in the framework；

   Multiple circuit module components, the module rest area is correspondingly arranged on by its repair rate.
2. 2. charger according to claim 1, it is characterised in that multiple circuit module components include：Input and pre- Charging circuit component, capacitance component, voltage detecting assembly, drive circuit assembly and output and detection circuit unit；The module is put Putting area includes：Outer layer rest area and middle rest area；

   Input and precharging circuit component, voltage detecting assembly, drive circuit assembly and output and detection the circuit unit installation In outer layer rest area, the capacitance component is arranged on the middle rest area, wherein the input and precharging circuit component, voltage Detection components, drive circuit assembly and output and maintenance frequency of the repair rate more than the capacitance component for detecting circuit unit Rate.
3. 3. charger according to claim 2, it is characterised in that window, the window and institute are offered on the framework It is corresponding to state drive circuit assembly；Catch part is installed on the window, multiple through holes are offered on the catch part.
4. 4. charger according to claim 1, it is characterised in that also include：Casing, the charger are removably mounted at In the casing.
5. 5. charger according to claim 4, it is characterised in that the casing is provided with an air channel, pacifies in the charger When in the casing, the radiator is located in the air channel.
6. 6. charger according to claim 4, it is characterised in that the framework is provided with the first slide rail, and described first slides Rail is provided with the first sliding condition；The casing is provided with the second slide rail, and second slide rail is provided with the second sliding condition；By described The cooperation of first sliding condition and the second sliding condition, the charger are removably mounted in the casing.
7. 7. charger according to claim 1, it is characterised in that also include：Temperature detecting module, the temperature examine module It is arranged on the radiator base plate to detect the temperature of the radiator base plate.
8. 8. charger according to claim 1, it is characterised in that multiple air vents are offered on the framework.
9. 9. charger according to claim 1, it is characterised in that the heater members include：Insulated gate bipolar crystal Pipe, diode, high-power resistance, resonance transformer and BOOST inductance.
10. 10. charger according to claim 1, it is characterised in that the radiator includes fin radiator, heat pipe heat radiation Device or water-filled radiator.