Device for optimizing temperature rise of positive fuse box and reducing ablation of positive fuse box

By incorporating a temperature sensor and fan system within the fuse box for active heat dissipation, the problem of poor heat dissipation in extreme weather conditions is solved, achieving optimized temperature control and extended service life.

CN223871440UActive Publication Date: 2026-02-03BYD CO LTD
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Patent Information

Application Number
CN202520383135.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-02-03
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

Existing fuse boxes are prone to burning and corrosion due to poor heat dissipation in extreme weather or during the hot summer months, causing the positive electrode to heat up rapidly.

Method used

An active cooling structure is adopted, which uses temperature sensors and controllers to drive the intake and exhaust fans for active cooling and constructs air ducts to optimize temperature control.

Benefits of technology

It effectively reduces the probability of positive electrode burnout and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a device for optimizing temperature rise of an anode fuse box and reducing ablation of the anode fuse box, which belongs to the technical field of fuse boxes and comprises a box body, the box body comprises a lower bottom box and an upper cover plate which are combined with each other, and an inner cavity of the lower bottom box and an inner cavity of the upper cover plate are formed on opposite sides of the lower bottom box and the upper cover plate. Fixing plate frames are symmetrically connected to the two opposite side walls of an inner cavity of the lower bottom box, copper columns are screwed on the two fixing plate frames in a threaded mode, threaded holes are tapped in the top walls of the two copper columns, a circuit board is fixed to the two copper columns, and screws penetrating into the threaded holes of the two copper columns are installed on the two sides of the top wall of the circuit board in the vertical direction respectively. The circuit board is a corresponding circuit in the fuse box. According to the device for optimizing the temperature rise of the anode fuse box and reducing the ablation of the anode fuse box, through the arrangement of the active heat dissipation structure, the phenomenon of the temperature rise of the anode can be optimized, meanwhile, the probability of burning and ablation of the anode is reduced, and the service life is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of insurance box, especially relates to a device for optimizing temperature rise of positive electrode insurance box and reducing ablation of positive electrode insurance box. BACKGROUND

[0002] The insurance box is an overcurrent protection switch, and exists to avoid accidents caused by abnormal current in the circuit due to various reasons of the power structure. The fuse is installed in the insurance box, and when the current exceeds the carrying current of the fuse, the fuse will be burned out.

[0003] In the implementation of the utility model, the inventor finds that at least the following problems exist in the technology: The existing insurance box usually adopts a passive heat dissipation mode for heat dissipation, and in some extreme weather or summer periods, the positive electrode of the insurance box is quickly heated due to the difficulty in heat dissipation, and is easily burned and corroded.

[0004] Therefore, the device for optimizing temperature rise of positive electrode insurance box and reducing ablation of positive electrode insurance box is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a device for optimizing temperature rise of positive electrode insurance box and reducing ablation of positive electrode insurance box. By arranging the active heat dissipation structure, the positive electrode heating phenomenon can be optimized, the probability of positive electrode burning and ablation can be reduced, and the service life can be prolonged. The problems in the background art can be effectively solved.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A device for optimizing temperature rise of positive electrode insurance box and reducing ablation of positive electrode insurance box, comprising a box body, the box body comprising a lower bottom box and an upper cover plate combined with each other, wherein the inner cavities of the lower bottom box and the upper cover plate are formed on the opposite sides of the two, two fixed plate frames are symmetrically connected to the opposite side walls of the inner cavity of the lower bottom box, and copper columns are screwed on the two fixed plate frames, threaded holes are formed in the top walls of the two copper columns, a circuit board is fixed on the two copper columns, and screws penetrating into the threaded holes of the two copper columns are installed on the two sides of the top wall of the circuit board in the vertical direction. The circuit board is the corresponding circuit in the insurance box.

[0008] Temperature sensors are fixed on the opposite sides of the inner cavity of the upper cover plate, a controller is installed on the bottom wall of the inner cavity of the lower bottom box, a flow guide cover is inlaid and installed on the center of the bottom wall of the lower bottom box and the center of the top wall of the upper cover plate, an air inlet fan and an air outlet fan are respectively installed in the two flow guide covers, and the temperature sensors, the air inlet fan and the air outlet fan are electrically connected with the controller.

[0009] As a preferred embodiment, two positioning seats are symmetrically connected to the top of the opposite side walls of the lower bottom box and the bottom of the opposite side walls of the upper cover plate. That is, four positioning seats are provided on the lower bottom box and the upper cover plate respectively, and the positioning seats on the lower bottom box correspond one-to-one with the positioning seats on the upper cover plate.

[0010] As a preferred embodiment, the two corresponding positioning seats fit tightly together and are fixed by a pair of bolts and nuts; thereby combining the lower bottom box and the upper cover into one unit to form a sealed cavity.

[0011] As a preferred embodiment, the two air deflectors are connected to the lower bottom box and the upper cover plate as a whole, and dustproof nets are installed at the openings on opposite sides of the two air deflectors; thus, the dustproof nets provide a certain degree of protection for the interior of the lower bottom box and the upper cover plate.

[0012] As a preferred implementation, the airflow direction of the intake fan and the exhaust fan is the same, both from bottom to top; thus creating an air duct to facilitate active heat dissipation when the temperature is high. The temperature sensor, controller, intake fan and exhaust fan require power supply components in the bottom box for power supply.

[0013] As a preferred embodiment, extension plates are fixedly connected to the opposite side walls of the inner cavity of the upper cover plate, and the two temperature sensors are respectively installed on the two extension plates; thereby keeping the structure of the two temperature sensors stable.

[0014] In summary, the technical effects and advantages of this utility model are as follows:

[0015] This device optimizes the temperature rise of the positive electrode fuse box and reduces its erosion. By suspending the circuit board and installing a temperature-controlled fan on both the upper cover and the lower box, the controller drives the two fans to actively dissipate heat when the temperature inside the box reaches a set high threshold (e.g., 50°C). This optimizes the positive electrode temperature rise, reduces the probability of positive electrode burnout, and extends the service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a vertical sectional view of the present invention;

[0018] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0019] In the diagram: 1. Lower base box; 2. Upper cover plate; 3. Positioning seat; 4. Bolt; 5. Nut; 6. Fixing plate frame; 7. Copper pillar; 8. Circuit board; 9. Screw; 10. Temperature sensor; 11. Controller; 12. Air guide; 13. Inlet fan; 14. Outlet fan; 15. Dustproof net; 16. Extension plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-3 A device for optimizing the temperature rise of the positive electrode fuse box and reducing the ablation of the positive electrode fuse box includes a box body, which includes a lower bottom box 1 and an upper cover plate 2 that are connected to each other. Two positioning seats 3 are symmetrically connected to the top of the opposite side walls of the lower bottom box 1 and the bottom of the opposite side walls of the upper cover plate 2. That is, four positioning seats 3 are provided on the lower bottom box 1 and the upper cover plate 2 respectively, and the positioning seats 3 on the lower bottom box 1 correspond one-to-one with the positioning seats 3 on the upper cover plate 2. The two corresponding positioning seats 3 are tightly fitted together and fixed by a pair of bolts 4 and nuts 5, so that the lower bottom box 1 and the upper cover plate 2 are combined into one body to form a sealed cavity.

[0022] The inner cavity of the lower box 1 and the inner cavity of the upper cover 2 are formed on opposite sides. Fixed plate frames 6 are symmetrically connected to the opposite side walls of the inner cavity of the lower box 1, and copper pillars 7 are threaded on both fixed plate frames 6. Threaded holes are tapped on the top walls of both copper pillars 7. Circuit boards 8 are fixed on the two copper pillars 7, and screws 9 that pass through the threaded holes of the two copper pillars 7 are installed on both sides of the top wall of the circuit board 8 in the vertical direction. Circuit board 8 is the corresponding circuit in the fuse box.

[0023] Temperature sensors 10 are fixed on opposite sides of the inner cavity of the upper cover plate 2 (extension plates 16 are fixedly connected to opposite side walls of the inner cavity of the upper cover plate 2, and the two temperature sensors 10 are respectively installed on the two extension plates 16, so that the structure of the two temperature sensors 10 remains stable). A controller 11 is installed on the bottom wall of the inner cavity of the lower bottom box 1. The temperature sensor 10 can refer to the technical principle of the PT100 model, and the controller 11 can refer to the technical principle of the S7-200 model. A flow guide shroud 12 is embedded in the center of the bottom wall of the lower bottom box 1 and the center of the top wall of the upper cover plate 2, and an inlet fan 13 and an outlet fan 14 are respectively installed in the two flow guide shrouds 12.

[0024] Temperature sensor 10, inlet fan 13, and outlet fan 14 are all electrically connected to controller 11. Two air guides 12 are connected to the lower box 1 and upper cover 2 as a whole. The airflow direction of inlet fan 13 and outlet fan 14 is the same, from bottom to top, thus forming an air duct to facilitate active heat dissipation when the temperature is high. Temperature sensor 10, controller 11, inlet fan 13, and outlet fan 14 require power supply components in the lower box 1 for power supply. Dustproof nets 15 are installed at the openings on opposite sides of the two air guides 12, thus providing a certain degree of protection for the interior of the lower box 1 and upper cover 2 through the dustproof nets 15.

[0025] The device for optimizing the temperature rise of the positive fuse box and reducing its erosion is as follows: During use, when all structures are powered on and operating normally, two temperature sensors 10 are used to monitor the ambient temperature inside the lower box 1 in real time. When the electronic components on the circuit board 8 continuously release heat, causing the temperature inside the lower box 1 to reach a set high threshold (e.g., 50°C), the temperature sensors 10 transmit electrical signals to the controller 11, causing the controller 11 to drive the inlet fan 13 and the outlet fan 14 to run. The inlet fan 13 draws in cool air from below the lower box 1 into the lower box 1, and the outlet fan 14 extracts heat from the lower box 1, thereby achieving active heat dissipation. When the temperature inside the lower box 1 reaches a set low threshold (e.g., 30°C), the inlet fan 13 and the outlet fan 14 stop running. Therefore, it avoids the continuous operation of the inlet fan 13 and the outlet fan 14 (which leads to serious dust accumulation) and can quickly dissipate heat when needed, reducing the probability of burn-out and extending the lifespan.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for optimizing the temperature rise of the positive electrode fuse box and reducing the ablation of the positive electrode fuse box, comprising a box body, characterized in that, The box body includes a lower bottom box (1) and an upper cover plate (2) that are connected to each other. The inner cavity of the lower bottom box (1) and the inner cavity of the upper cover plate (2) are formed on opposite sides of each other. The two opposite side walls of the inner cavity of the lower bottom box (1) are symmetrically connected with fixing plates (6), and copper pillars (7) are threaded on both fixing plates (6). The top walls of the two copper pillars (7) are tapped with threaded holes. Circuit boards (8) are fixed on the two copper pillars (7), and screws (9) that pass through the threaded holes of the two copper pillars (7) are installed on both sides of the top wall of the circuit board (8) in the vertical direction. Temperature sensors (10) are fixed on both sides of the inner cavity of the upper cover plate (2), and a controller (11) is installed on the bottom wall of the inner cavity of the lower bottom box (1). A flow guide (12) is embedded in the center of the bottom wall of the lower bottom box (1) and the center of the top wall of the upper cover plate (2). An inlet fan (13) and an outlet fan (14) are respectively installed in the two flow guides (12). The temperature sensors (10), the inlet fan (13) and the outlet fan (14) are all electrically connected to the controller (11).

2. The apparatus for optimizing the temperature rise of the positive electrode fuse box and reducing its erosion according to claim 1, characterized in that, The bottom of the lower box (1) and the top of the opposite side walls are symmetrically connected to two positioning seats (3), that is, the lower box (1) and the upper cover (2) are respectively provided with four positioning seats (3), and the positioning seats (3) on the lower box (1) correspond one-to-one with the positioning seats (3) on the upper cover (2).

3. The device for optimizing the temperature rise of the positive electrode fuse box and reducing the erosion of the positive electrode fuse box according to claim 2, characterized in that, The two corresponding positioning seats (3) are tightly fitted together and fixed by a pair of bolts (4) and nuts (5).

4. The apparatus for optimizing the temperature rise of the positive electrode fuse box and reducing the erosion of the positive electrode fuse box according to claim 1, characterized in that, The two air deflectors (12) are connected to the lower bottom box (1) and the upper cover plate (2) respectively, and dustproof nets (15) are installed at the openings on opposite sides of the two air deflectors (12).

5. The apparatus for optimizing the temperature rise of the positive electrode fuse box and reducing the erosion of the positive electrode fuse box according to claim 1, characterized in that, The airflow direction of the inlet fan (13) and the outlet fan (14) is the same, both from bottom to top.

6. The apparatus for optimizing the temperature rise of the positive electrode fuse box and reducing the erosion of the positive electrode fuse box according to claim 1, characterized in that, The upper cover plate (2) has two side walls with opposite sides fixedly connected to extension plates (16), and the two temperature sensors (10) are respectively installed on the two extension plates (16).