Independent resistance box
By designing an independent resistor box and utilizing a combination of an axial fan and a resistor rack, the problem of insufficient heat dissipation of the resistor was solved, thereby improving the stability and safety of electrical components and extending their service life.
Patent Information
- Application Number
- CN202422442942.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-10-10
AI Technical Summary
In existing technologies, resistors cannot dissipate heat in a timely manner, which leads to a decrease in the stability and safety of electrical components and a shortened service life.
An independent resistor box was designed, comprising a resistor box body, a braking resistor, a resistor frame, and an axial flow fan. The axial flow fan actively dissipates heat, and the design of the resistor frame and fan mesh cover enhances the heat dissipation efficiency. Furthermore, the heat exhaust path is optimized through the setting of the resistor box bracket and ventilation holes.
This improves the heat dissipation efficiency of the resistor, enhances the stability and safety of electrical components, extends their service life, and simplifies the maintenance and installation process.
Smart Images

Figure CN223513723U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of resistance boxes, and in particular to an independent resistance box. Background Technology
[0002] Braking resistors generate a lot of heat when in operation. Even if the resistor is installed in an open space, it will still have an adverse effect on the normal operation of the machine. This effect will cause the stability of electrical components to decrease, frequent failures to occur, and a shortened service life. Utility Model Content
[0003] This invention aims to overcome the shortcomings of existing technologies where resistors cannot dissipate heat in a timely manner, resulting in decreased stability, safety, and service life of electrical components. It provides an independent resistor box that improves the heat dissipation efficiency of resistors, thereby enhancing the stability, safety, and extending the service life of electrical components.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] An independent resistor box includes a resistor box body, a braking resistor, a resistor frame, and an axial flow fan. The resistor box body is internally open and connected to the outside at both ends. The braking resistor and the resistor frame are both placed inside the resistor box body. There are two resistor frames, each fixedly connected to the rear end face inside the resistor box body. There are several braking resistors distributed vertically. The left and right ends of each braking resistor are respectively engaged with two resistor frames. The axial flow fan is placed on the right end face of the resistor box body and fixedly connected to the right end face of the resistor box body. The axial flow fan and the braking resistor are aligned in a straight line inside the resistor box body. A resistor box support is provided on the lower end face of the resistor box body. There are several resistor box supports, each fixedly connected to the lower end face of the resistor box body. A wire mesh cover is provided on the right side face of the axial flow fan, and the wire mesh cover is connected to the right side face of the axial flow fan.
[0006] During installation, different numbers of braking resistors are arranged vertically and clipped onto the resistor rack inside the resistor box as needed. The axial fan is installed at one of the open ends of the resistor box, ensuring that the braking resistors and the axial fan are in a straight line. This allows for active heat dissipation, ensuring effective heat removal and preventing heat buildup. The wire mesh cover on the axial fan ensures sufficient airflow while protecting it from foreign objects, improving safety and stability. The resistor box support under the resistor box raises the box, preventing heat from being transferred to other locations through the box. It also serves as a mounting bracket, thus improving the resistor's heat dissipation efficiency, thereby enhancing the stability and safety of electrical components and extending their service life.
[0007] Preferably, the front end face of the resistor frame has several mounting holes, which are evenly distributed vertically. The left and right ends of the braking resistor each have several slots, the positions of which correspond to the positions of the mounting holes. The braking resistor is engaged with the resistor frame through the cooperation of the slots and mounting holes. The multiple mounting holes facilitate the installation of nuts at different positions, allowing different numbers of braking resistors to be engaged using the slots.
[0008] Preferably, the resistor frame has several ventilation holes on its side, which are evenly distributed vertically. These ventilation holes on the side of the resistor frame increase the space for airflow, thereby accelerating heat dissipation.
[0009] Preferably, a resistor box cover is provided on the front end face of the resistor box, and the resistor box cover is connected to the front end face of the resistor box. The resistor box cover is removable, which facilitates later maintenance, repair and replacement.
[0010] Preferably, the resistor housing is provided with several ventilation holes, which are located on the rear end face of the resistor housing and communicate with the interior of the resistor housing. These ventilation holes not only increase ventilation and heat dissipation efficiency but also serve as wiring holes, facilitating installation.
[0011] Preferably, the resistor box bracket is provided with a second set of mounting holes, which are several in number and evenly distributed on the resistor box bracket. The second set of mounting holes facilitates the installation and removal of the resistor box.
[0012] The beneficial effects of this utility model are: improving the heat dissipation efficiency of the resistor, thereby improving the stability and safety of electrical components and extending their service life; multiple mounting holes facilitate the installation of nuts in different positions, allowing different numbers of braking resistors to be connected by slots; the ventilation holes on the side of the resistor frame increase the space for airflow, thus enabling faster heat dissipation; the resistor box cover is removable, facilitating later maintenance, repair, and replacement; the second ventilation hole not only increases the efficiency of ventilation and heat dissipation but also serves as a wire threading hole, facilitating installation; the second mounting hole facilitates the installation and disassembly of the resistor box. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 yes Figure 1 A magnified view of detail A;
[0015] Figure 3 This is an exploded view of this utility model.
[0016] In the diagram: 1. Resistor box body, 2. Braking resistor, 3. Resistor frame, 4. Axial flow fan, 5. Iron mesh cover, 6. Mounting hole one, 7. Slot, 8. Ventilation hole one, 9. Resistor box cover, 10. Ventilation hole two, 11. Resistor box bracket, 12. Mounting hole two. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0018] like Figure 1 and Figure 3 In one embodiment, an independent resistor box includes a resistor box body 1, a braking resistor 2, a resistor frame 3, and an axial flow fan 4. The resistor box body 1 is internally open and its left and right ends are connected to the outside. The braking resistor 2 and the resistor frame 3 are both placed inside the resistor box body 1. There are two resistor frames 3, each fixedly connected to the rear end face inside the resistor box body 1. There are several braking resistors 2, which are distributed vertically. The left and right ends of the braking resistors 2 are respectively engaged with two resistor frames 3. The axial flow fan 4 is placed on the right end face of the resistor box body 1 and fixedly connected to the right end face of the resistor box body 1. The axial flow fan 4 and the braking resistor 2 are in a straight line inside the resistor box body 1. A resistor box support 11 is provided on the lower end face of the resistor box body 1. There are several resistor box supports 11, which are fixedly connected to the lower end face of the resistor box body 1. A wire mesh cover 5 is provided on the right side face of the axial flow fan 4 and is connected to the right side face of the axial flow fan 4.
[0019] like Figure 2 As shown, the front end face of the resistor frame 3 is provided with several mounting holes 6, which are evenly distributed vertically. The left and right ends of the brake resistor 2 are provided with several slots 7, which correspond to the positions of the mounting holes 6. The brake resistor 2 is engaged with the resistor frame 3 through the cooperation of the slots 7 and the mounting holes 6.
[0020] like Figures 1 to 3 As shown, the resistor frame 3 has several ventilation holes 8 on its side, which are evenly distributed vertically.
[0021] like Figure 1 and Figure 3 As shown, a resistor box cover 9 is provided on the front end face of the resistor box 1, and the resistor box cover 9 is connected to the front end face of the resistor box 1.
[0022] like Figure 3 As shown, the resistor box 1 is provided with several ventilation holes 10, which are located on the rear end face of the resistor box 1 and are connected to the interior of the resistor box 1.
[0023] like Figure 1 and Figure 3As shown, the resistor box bracket 11 is provided with mounting holes 12, and there are several mounting holes 12 evenly distributed on the resistor box bracket 11.
[0024] During installation, different numbers of braking resistors 2 are arranged vertically and clipped onto the resistor frame 3 inside the resistor housing 1. The slots 7 of the braking resistors 2 should be aligned with the mounting holes 6 on the resistor frame 3. Screws or inserts can then be used to install them into the mounting holes 6, thus securing the slots 7. The axial flow fan 4 is installed at the open end of the resistor housing 1, ensuring the braking resistors 2 and the axial flow fan 4 are in a straight line. This allows for active heat dissipation, ensuring effective heat removal and preventing heat buildup. The ventilation holes 8 on the resistor frame 3 further increase the airflow space. The wire mesh cover 5 on the axial flow fan 4 ensures the proper functioning of the fan. The air intake volume is increased, and the axial flow fan 4 is protected from sucking in foreign objects, thus improving safety and stability. The resistor box bracket 11 under the resistor box 1 can raise the resistor box, thereby preventing heat from being transferred to other positions through the resistor box. It can also be easily installed through the mounting hole 12. The ventilation hole 10 on the resistor box 1 can not only facilitate heat dissipation, but also serve as a wire hole, making it convenient to place the wires in a centralized manner, which is more tidy. When the brake resistor 2 needs to be repaired or replaced, the resistor box cover 9 can be opened for repair or replacement. This achieves the purpose of improving the heat dissipation efficiency of the resistor, thereby improving the stability and safety of electrical components and extending their service life.
Claims
1. An independent resistance box, characterized in that, The system includes a resistor housing (1), a braking resistor (2), a resistor frame (3), and an axial flow fan (4). The resistor housing (1) is internally open and its left and right ends are connected to the outside. The braking resistor (2) and the resistor frame (3) are both placed inside the resistor housing (1). There are two resistor frames (3), each fixedly connected to the rear end face inside the resistor housing (1). There are several braking resistors (2) arranged vertically. The left and right ends of each braking resistor (2) are respectively engaged with two resistor frames (3). The axial flow fan (4) 4) The resistor is placed on the right end face of the resistor box (1) and fixedly connected to the right end face of the resistor box (1). The axial flow fan (4) and the brake resistor (2) are in a straight line inside the resistor box (1). The resistor box support (11) is provided on the lower end face of the resistor box (1). There are several resistor box supports (11) and they are fixedly connected to the lower end face of the resistor box (1). The iron mesh cover (5) is provided on the right side face of the axial flow fan (4). The iron mesh cover (5) is connected to the right side face of the axial flow fan (4).
2. The independent resistance box according to claim 1, characterized in that, The front end face of the resistor frame (3) is provided with a number of mounting holes (6), which are evenly distributed vertically. The left and right ends of the brake resistor (2) are provided with a number of slots (7), the positions of the slots (7) correspond to the positions of the mounting holes (6), and the brake resistor (2) is engaged with the resistor frame (3) through the cooperation of the slots (7) and the mounting holes (6).
3. The independent resistance box according to claim 2, characterized in that, The resistor frame (3) has several ventilation holes (8) on its side, and the ventilation holes (8) are evenly distributed vertically.
4. The independent resistance box according to claim 1, characterized in that, The front end face of the resistor box (1) is provided with a resistor box cover (9), and the resistor box cover (9) is connected to the front end face of the resistor box (1).
5. An independent resistance box according to claim 4, characterized in that, The resistor box (1) is provided with a plurality of ventilation holes (10), which are located on the rear end face of the resistor box (1) and are connected to the interior of the resistor box (1).
6. The independent resistance box according to claim 1, characterized in that, The resistor box bracket (11) is provided with mounting holes two (12), and there are several mounting holes two (12) evenly distributed on the resistor box bracket (11).