An electric vehicle charger transformer

Abstract

The utility model relates to the technical field of charger transformer, concretely to an electric motor car charger transformer, including upper casing, lower casing, the outside of upper casing, lower casing is provided with the flow heat dissipation subassembly, the flow heat dissipation subassembly includes the air inlet that sets up in the outside of upper casing, the outside of lower casing is provided with the air outlet, the air inlet is staggered and is set up, the air inlet is provided with the upper grid, the air outlet is provided with the lower grid, the lower casing is provided with the flow auxiliary assembly, in the utility model, through the setting of flow heat dissipation subassembly and flow auxiliary assembly, increase the air inlet and air outlet distance while, to the hot air carries out the quick guidance, reduces the stagnation of hot air, and through the setting of the support frame and the transformer high -elevation, the vertical distance of the elevated post -heating center and the heat dissipation center increases, the buoyancy of hot air because of the density reduction produces stronger, the flow velocity of natural convection is significantly promoted.

Description

Technical Field

[0001] This utility model relates to the field of charger transformer technology, and in particular to an electric vehicle charger transformer. Background Technology

[0002] Electric vehicles, also known as electric-driven vehicles, are vehicles powered by electricity. Electric vehicles are divided into AC electric vehicles and DC electric vehicles. Generally speaking, an electric vehicle uses a battery as its energy source, and through components such as a controller and motor, it converts electrical energy into mechanical energy for movement, with speed adjusted by controlling the magnitude of the current.

[0003] An existing electric vehicle charger transformer with authorized publication number CN211150242U is small in size and has good heat dissipation. It includes an upper housing and a lower housing. A first slotted heat sink is provided on one side of the upper housing, and a second slotted heat sink is provided on the top of the upper housing. A cooling fan is fixedly connected to one side of the upper housing, and a first support crossbeam is fixedly connected inside the upper housing. A first mounting post is fixedly connected inside the first support crossbeam. This small electric vehicle charger transformer with good heat dissipation, by incorporating the first and second slotted heat sinks, which are designed with concave grooves to increase the airflow front surface, and by having heat dissipation holes evenly distributed on the first and second slotted heat sinks, provides good airflow guidance and prevents airflow blockage. The inclusion of the first and second slotted heat sinks also provides good protection against damage.

[0004] Regarding the aforementioned technologies, the existing charger transformers have the following drawbacks: the devices only conduct heat by opening multiple heat dissipation holes. During continuous operation of the transformer, the temperature continues to rise, and the heat dissipation holes are not effective, leading to overload of the device. Therefore, this utility model provides an electric vehicle charger transformer. Utility Model Content

[0005] The purpose of this application is to provide an electric vehicle charger transformer to solve the problem mentioned in the background art that during the continuous operation of the transformer, the temperature continues to rise and the heat dissipation effect of the heat dissipation holes is poor, leading to overload of the equipment.

[0006] To achieve the above objectives, this application provides the following technical solution: an electric vehicle charger transformer, comprising an upper housing and a lower housing, wherein a heat dissipation assembly is provided on the outer side of the upper housing and the lower housing; the heat dissipation assembly includes an air inlet on the outer side of the upper housing and an air outlet on the outer side of the lower housing, the air inlets being arranged alternately vertically, an upper grille being provided inside the air inlet, a lower grille being provided inside the air outlet, and a heat guiding auxiliary assembly being provided inside the lower housing.

[0007] Preferably, the flow guiding auxiliary component includes multiple fixing frames fixedly connected to the inner wall side of the lower housing, a fixing block fixedly connected to one end of each fixing frame, a common support frame provided between the multiple fixing blocks, multiple vertically penetrating flow guiding grooves fixedly connected to the inner wall side of the support frame, and slots provided on the outer side of the upper housing.

[0008] Preferably, an inclined frame is provided inside the slot, and multiple inclined guide fans are provided inside the inclined frame.

[0009] Preferably, multiple connecting blocks are fixedly connected to the outer sides of both the upper and lower housings, threaded holes are provided on the inner sides of the connecting blocks, and a flow guide is provided on the inner side of the upper housing.

[0010] Preferably, both the inner walls of the upper shell and the lower shell are provided with multiple slots, and phase change material capsules are disposed in the slots.

[0011] Preferably, multiple heat dissipation fins are fixedly connected to the outer sides of both the upper housing and the lower housing, and grooves are formed on the outer sides of the heat dissipation fins.

[0012] In summary, the technical effects and advantages of this utility model are as follows: In this invention, by setting up the airflow guiding heat dissipation component and the airflow guiding auxiliary component, the distance between the air inlet and the air outlet is increased, while the hot air is quickly guided and the stagnation of hot air is reduced. Furthermore, by setting up the support frame to raise the transformer, the vertical distance between the heating center and the heat dissipation center is increased after the transformer is raised. The buoyancy generated by the reduced density of the hot air is stronger, and the flow rate of natural convection is significantly improved. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a first-view axial side view of the structure of this utility model; Figure 2 This is a schematic diagram of the second-view axial side structure of this utility model; Figure 3 This is a schematic diagram of the support frame in this utility model; Figure 4 This is a schematic diagram of the structure of the guide fan in this utility model; Figure 5 This is a schematic diagram of the hollow groove structure of this utility model.

[0015] In the diagram: 1. Upper shell; 2. Lower shell; 3. Connecting block; 4. Inclined frame; 5. Guide fan; 6. Heat dissipation fins; 7. Groove; 8. Lower grille; 9. Upper grille; 10. Fixing block; 11. Support frame; 12. Air guide channel; 13. Phase change material capsule; 14. Fixing frame; 15. Air guide cover; 16. Empty slot; 17. Air inlet; 18. Air outlet. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Example 1: Reference Figure 1-5The electric vehicle charger transformer shown includes an upper housing 1 and a lower housing 2. The upper housing 1 and the lower housing 2 serve as the core mounting carrier, providing structural support for the internal components and achieving sealing protection to prevent dust and moisture from entering and affecting the operation of the internal components. A heat dissipation component is provided on its outer side to accelerate the dissipation of heat from the equipment and ensure the stability of the transformer's operation. The airflow cooling assembly includes an air inlet 17 on the outer side of the upper housing 1 and an air outlet 18 on the outer side of the lower housing 2. The air inlet 17 and the air outlet 18 form a cooling airflow channel to achieve air circulation cooling. The air inlets 17 are staggered vertically to increase the air intake area and avoid direct airflow collision, thus improving air intake efficiency. An upper grille 9 is provided inside the air inlet 17, and a lower grille 8 is provided inside the air outlet 18. The grilles can block foreign objects from entering the housing without affecting airflow. An airflow guiding auxiliary assembly is provided inside the lower housing 2 to guide the airflow direction and improve the uniformity of heat dissipation. The airflow guiding auxiliary assembly includes multiple fixing brackets 14 fixedly connected to the inner wall side of the lower housing 2. The fixing brackets 14 provide installation support points for subsequent components to ensure structural stability. One end of each fixing bracket 14 is fixedly connected to a fixing block 10, which is used to connect the fixing bracket 14 to the support bracket 11 to enhance the overall structural strength. A common support bracket 11 is provided between the multiple fixing blocks 10. The support bracket 11 is a flow guide channel 1. 2. Provide an installation foundation; multiple vertically penetrating guide grooves 12 are fixedly connected to the inner wall side of the support frame 11. The guide grooves 12 can directionally guide the airflow, allowing the airflow to flow precisely through the heating element area, improving the targeted heat dissipation; slots are opened on the outer side of the upper housing 1, providing installation space for the inclined frame 4; the inclined frame 4 is set in the slot, and the inclined frame 4 is used to fix the guide fan 5 and determine its installation angle; multiple inclined guide fans 5 are set in the inclined frame 4, and the inclined setting can optimize the airflow introduction direction, allowing the airflow to enter the housing more smoothly and enhancing the airflow driving force; multiple connecting blocks 3 are fixedly connected to the outer sides of both the upper housing 1 and the lower housing 2, making it convenient for the equipment to be mounted at a designated position; threaded holes are opened on the inner side of the connecting block 3, and the threaded holes, together with bolts, can realize a firm connection between the connecting block 3 and the mounting surface; a guide shroud 15 is set on the inner wall side of the upper housing 1, which can guide the airflow entering the housing in a secondary manner, allowing the airflow to cover the internal components more evenly and improving the overall heat dissipation effect.

[0019] Example 2: Reference Figure 1-5Based on the same concept as in Embodiment 1 above, this embodiment further proposes that multiple slots 16 are formed on the inner side walls of both the upper shell 1 and the lower shell 2. These slots 16 are used to stably embed the phase change material capsule 13, while simultaneously increasing the contact area between the phase change material capsule 13 and the inner wall of the shell, thus improving heat transfer efficiency. The phase change material capsule 13, housed within the slots 16, absorbs or releases heat through a phase change process, thereby regulating the temperature of the internal components and maintaining stable operating temperatures. Multiple heat dissipation fins 6 are fixedly connected to the outer sides of both the upper shell 1 and the lower shell 2. These fins increase the heat exchange area between the shell and the external environment, accelerating heat dissipation. Grooves 7 are formed on the outer sides of the heat dissipation fins 6, further expanding the heat dissipation contact area and promoting airflow, thereby increasing the heat dissipation rate.

[0020] The working principle of this utility model is as follows: The transformer is placed inside the support frame 11, and the transformer is raised by the fixing frame 14, fixing block 10, and support frame 11. The upper shell 1 and lower shell 2 are spliced ​​and installed by the connecting block 3. The upper shell 1 and lower shell 2 dissipate heat through the heat dissipation fins 6, and form a bottom-in and top-out ventilation channel through the air inlet 17 and air outlet 18. The distance between the air inlet 17 and the air outlet 18 is increased to avoid the hot air backflow and the formation of circulation. The setting of the air guide shroud 15 guides the hot air to flow quickly towards the air outlet 18, reducing the hot air stagnation around the transformer. The setting of multiple through-type air guide grooves 12 enhances the directional guidance of airflow and enhances the heat dissipation effect. The inclined air guide fan 5 enhances the guidance of airflow.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electric vehicle charger transformer, comprising an upper housing (1) and a lower housing (2), characterized in that: The outer sides of the upper shell (1) and the lower shell (2) are provided with heat dissipation components; The heat dissipation assembly includes an air inlet (17) on the outside of the upper housing (1) and an air outlet (18) on the outside of the lower housing (2). The air inlets (17) are arranged in an alternating pattern. An upper grille (9) is provided inside the air inlet (17), a lower grille (8) is provided inside the air outlet (18), and a heat dissipation auxiliary assembly is provided inside the lower housing (2).

2. The electric vehicle charger transformer according to claim 1, characterized in that: The flow guiding auxiliary component includes multiple fixed frames (14) fixedly connected to the inner wall side of the lower housing (2). One end of each of the multiple fixed frames (14) is fixedly connected to a fixed block (10). The multiple fixed blocks (10) are provided with the same support frame (11). The inner wall side of the support frame (11) is fixedly connected to multiple vertically penetrating flow guiding grooves (12). The outer side of the upper housing (1) is provided with slots.

3. The electric vehicle charger transformer according to claim 2, characterized in that: An inclined frame (4) is provided inside the slot, and multiple inclined guide fans (5) are provided inside the inclined frame (4).

4. The electric vehicle charger transformer according to claim 3, characterized in that: Multiple connecting blocks (3) are fixedly connected to the outer sides of the upper shell (1) and the lower shell (2). Threaded holes are opened on the inner side of the connecting blocks (3), and a flow guide (15) is provided on the inner wall side of the upper shell (1).

5. The electric vehicle charger transformer according to claim 4, characterized in that: Multiple slots (16) are provided on the inner side walls of the upper shell (1) and the lower shell (2), and phase change material capsules (13) are provided in the slots (16).

6. The electric vehicle charger transformer according to claim 1, characterized in that: Multiple heat dissipation fins (6) are fixedly connected to the outer sides of the upper shell (1) and the lower shell (2), and grooves (7) are provided on the outer sides of the heat dissipation fins (6).

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