Water-cooled resistance device

By using a central sleeve to separate the cooling water flow channel and the spiral blade design in the water-cooled resistor device, the problem of uneven heat dissipation in different parts of the resistor element is solved, the heat dissipation efficiency is improved and protection is provided, achieving a more efficient heat dissipation effect and protection.

CN224595308UActive Publication Date: 2026-08-04ANHUI WEIPA AUTOMATION SYST CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI WEIPA AUTOMATION SYST CO LTD
Filing Date
2025-09-04
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In existing water-cooled resistor devices, the heat dissipation efficiency of different parts of the resistor element is inconsistent, resulting in a decrease in overall heat dissipation efficiency. In addition, the cooling water flow time is short, and the problem of uneven heat distribution has not been effectively solved.

Method used

The cooling water flow channels are separated by a central sleeve, and combined with a spiral blade design, an independent cooling circulation loop is formed. It is protected by a protective shell and locking components to ensure that the coolant spirals forward to increase contact time and uniform heat dissipation.

Benefits of technology

This achieves uniform heat dissipation efficiency across all parts of the resistor element, improving overall heat dissipation efficiency, and provides additional protection through the casing to prevent external impacts and dust from entering.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224595308U_ABST
    Figure CN224595308U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of resistor device technology and discloses a water-cooled resistor device, including a mounting base. A water-cooling mechanism is installed in the middle of the top wall of the mounting base. The function of the water-cooling mechanism is to dissipate heat from the resistor element. The water-cooling mechanism includes a cavity shell. Multiple water inlets are equidistantly connected to the top of the cavity shell, and water outlets are provided on the right side of each of the multiple water inlets. A central sleeve runs through the interior of the cavity shell, and a partition component is installed on the outer wall of the central sleeve. In this utility model, the central sleeve conducts heat to the cooling water, the partition component divides the space inside the cavity shell into multiple independent cavities, and the spiral blade acts as a spiral guide to make the coolant spiral forward. This mechanism can shorten the travel distance of the coolant in each heat dissipation cycle and solve the problem of inconsistent heat distribution in different parts of the resistor element and reduced actual heat dissipation efficiency in the prior art.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of resistor device technology, and in particular to a water-cooled resistor device. Background Technology

[0002] Water-cooled resistors are high-power resistive devices that use liquid, usually deionized water or special coolant, as the heat dissipation medium. They are mainly used to consume or regulate excess electrical energy in the circuit, while efficiently removing the huge amount of heat generated by the resistor during operation through the water cooling system. They are suitable for high-power, high-heat-generating scenarios. Their main purpose is to solve the pain points of insufficient heat dissipation capacity and excessive size of traditional air-cooled resistors. The general structure of this type of device includes a resistor frame and resistor element, a cooling channel, a circulation pump, and liquid delivery pipelines.

[0003] Existing water-cooled resistor devices mostly adopt a single-layer integrated water-cooling cavity design. The cooling water flows in a short-path straight line within the cavity, resulting in short contact time with the heating resistor. This limited contact time leads to low heat dissipation efficiency. Furthermore, the cooling water that flows in first absorbs heat and carries it to the rear end of the resistor. The longer the cavity, the more pronounced the uneven heat distribution between the front and rear ends becomes. To improve these issues, existing technologies use spiral guide vanes within the wall to increase the flow time of the cooling water within the cavity, aiming to improve heat dissipation efficiency. However, in actual use, although the spiral design extends the heat dissipation time of the water flow within the cavity, it still does not solve the problem of uneven heat distribution between the water that enters first and the water that enters later. This results in inconsistent heat dissipation efficiency at different parts of the same resistor element, ultimately reducing the actual heat dissipation efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a water-cooled resistor device, which aims to improve the problem of inconsistent heat dissipation efficiency in different parts of the resistor element in the prior art, resulting in reduced actual heat dissipation efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a water-cooled resistor device, comprising a mounting base plate, wherein a water-cooling mechanism is mounted on the middle of the top wall of the mounting base plate, the function of the water-cooling mechanism is to dissipate heat from the resistor element, a protective mechanism is mounted on the outer wall of the water-cooling mechanism, the function of the protective mechanism is to provide protection for the water-cooling mechanism, the water-cooling mechanism includes a cavity shell, the cavity shell is fixedly connected to the top of the mounting base plate, a plurality of water inlets are equidistantly connected to the top of the cavity shell, a water outlet is provided on the right side of each of the plurality of water inlets, the plurality of water outlets are all connected to the top of the cavity shell, sealing plates are fixedly connected to the left and right sections of the inner wall of the cavity shell, a central sleeve penetrates the interior of the cavity shell, and a partition component is mounted on the outer wall of the central sleeve.

[0006] As a further description of the above technical solution: The separating component includes two separating plates, both of which are fixedly connected to the outer wall of the central sleeve. Spiral plates are provided on the left and right sides of the two separating plates, and multiple spiral plates are fixedly connected to the outer wall of the central sleeve at equal intervals.

[0007] As a further description of the above technical solution: The protective mechanism includes two protective shells, both of which are located outside the outer shell of the cavity. Each of the two protective shells is fixedly connected to a connecting buckle on its top. Each of the two protective shells has multiple honeycomb holes equidistantly arranged inside. Each of the two protective shells is fixedly connected to a cover on its left and right ends. Each of the two protective shells has a fixing component in its middle. Each of the two covers has a locking component installed on its left and right sides.

[0008] As a further description of the above technical solution: The fixing component includes a wheel frame, which is fixedly connected to the middle of the front and rear sides of the mounting base plate, and an eccentric wheel is rotatably connected to the inner side of the wheel frame.

[0009] As a further description of the above technical solution: The locking assembly includes a movable pin, which is slidably connected to the bottom of the protective shell. A lever is fixedly connected to the outer wall of each of the movable pins, and a spring is fixedly connected to the end of each of the movable pins. A through hole is provided on the outer side of the movable pin, and the movable pin is opened on the left and right sides inside the protective cover.

[0010] As a further description of the above technical solution: A resistor is fixedly connected inside the central sleeve, and multiple mounting holes are equally spaced on the front and rear sides of the top wall of the mounting base.

[0011] As a further description of the above technical solution: The bottom of both the left and right ends of the protective shell is provided with sliding grooves, and multiple heat dissipation ridges are fixedly connected to the outer walls of both protective shells.

[0012] As a further description of the above technical solution: Each of the multiple connecting buckles has a connecting bolt threaded to its center, and each of the multiple connecting buckles has a connection port on its left and right sides.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the central sleeve conducts heat to the cooling water, the partition plate divides the space inside the outer shell of the cavity into multiple independent cavities, and the spiral plate acts as a spiral guide to make the coolant spiral forward, ensuring contact and cooling time before being discharged from the outlet. This mechanism independently separates the heat dissipation chambers inside the mounting base, shortens the travel distance of the coolant in each heat dissipation cycle, and solves the problem of inconsistent heat in different parts of the resistive element and reduced actual heat dissipation efficiency in the prior art.

[0014] 2. In this utility model, the two protective shells are fastened together on the outer shell of the cavity and the mounting base, and the bolts on the connecting buckle are tightened to complete the initial installation. The honeycomb holes in the protective shell help to reduce the overall weight while taking into account both weight reduction and strength. The eccentric wheel is rotated to press down on the base of the protective shell, and the protective shell is locked on the mounting base. The cover is installed at the openings on both sides of the protective shell. When the cover moves inward, it presses the moving pin into the protective shell. The spring is compressed and the moving pin is inserted into the through hole, thus locking the position of the cover. This mechanism provides an additional protective layer for the water cooling mechanism, which can play a role in waterproofing, dustproofing and a certain degree of protection against external impacts. Attached Figure Description

[0015] Figure 1 This is a front view of a water-cooled resistor device proposed in this utility model; Figure 2 This is a perspective view of a water-cooled resistor device proposed in this utility model; Figure 3 This is an exploded view of the water cooling mechanism of a water-cooled resistor device proposed in this utility model; Figure 4 This is an exploded view of the protection mechanism of a water-cooled resistor device proposed in this utility model; Figure 5 This is an exploded view of the locking assembly of a water-cooled resistor device proposed in this utility model.

[0016] Legend: 1. Mounting base plate; 2. Water cooling mechanism; 201. Cavity shell; 202. Water inlet; 203. Water outlet; 204. Sealing plate; 205. Central sleeve; 206. Separating assembly; 2061. Separating plate; 2062. Spiral plate; 3. Protection mechanism; 301. Protective shell; 302. Connecting buckle; 303. Honeycomb hole; 304. Fixing assembly; 3041. Wheel frame; 3042. Eccentric wheel; 305. Protective cover; 306. Locking assembly; 3061. Moving pin; 3062. c; 3063. Spring; 3064. Through hole; 4. Resistor; 5. Connecting bolt; 6. Mounting hole; 7. Slide groove; 8. Heat dissipation ridge; 9. Connection port. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0018] Reference Figure 1 , Figure 2 and Figure 3 The present invention provides an embodiment of a water-cooled resistor device, including a mounting base plate 1, a water-cooling mechanism 2 installed in the middle of the top wall of the mounting base plate 1, the function of the water-cooling mechanism 2 is to dissipate heat from the resistor element, and a protective mechanism 3 is installed on the outer wall of the water-cooling mechanism 2, the function of the protective mechanism 3 is to provide protection for the water-cooling mechanism 2. The water cooling mechanism 2 includes a cavity shell 201, which is fixedly connected to the top of the mounting base plate 1. Multiple water inlets 202 are equidistantly connected to the top of the cavity shell 201. Water outlets 203 are provided on the right side of each of the multiple water inlets 202. The multiple water outlets 203 are all connected to the top of the cavity shell 201. Sealing plates 204 are fixedly connected to the left and right ends of the inner wall of the cavity shell 201. A central sleeve 205 passes through the inside of the cavity shell 201. A partition component 206 is installed on the outer wall of the central sleeve 205. The separating component 206 includes two separating pieces 2061, both of which are fixedly connected to the outer wall of the central sleeve 205. Spiral pieces 2062 are provided on the left and right sides of the two separating pieces 2061, and multiple spiral pieces 2062 are fixedly connected to the outer wall of the central sleeve 205 at equal intervals. The center sleeve 205 is fixedly connected to a resistor 4, and multiple mounting holes 6 are equally spaced on the front and rear sides of the top wall of the mounting base plate 1. Specifically, the resistor 4 is coaxially sleeved in the internal cavity of the central sleeve 205. The central sleeve 205 is made of a thermally conductive material, and its outer wall is in direct contact with the cooling water inside the cavity shell 201. This allows the heat generated by the resistor 4 during operation to be quickly transferred to the cooling water inside the cavity shell 201. Multiple partition plates 2061 are evenly arranged along the axial direction of the cavity shell 201, dividing the space inside the cavity shell 201 into multiple independent cavities. The coolant in each independent cavity forms its own circulation loop. Each cavity is equipped with a corresponding inlet 202 and outlet 203. The coolant is continuously injected from the inlet 202 into the flow channel inside the mounting base plate 1 through the liquid delivery pipe. The spiral blades 2062 in the flow channel of the mounting base plate 1 act as spiral guides along the flow channel, allowing the coolant entering the flow channel to move along a spiral trajectory, ensuring the contact cooling time between the coolant and the flow channel wall. After absorbing heat, the coolant is discharged from the outlet 203 through the pipe, completing one complete cooling cycle.

[0019] Reference Figure 4 and Figure 5The protective mechanism 3 includes two protective shells 301. Both protective shells 301 are located outside the outer shell 201 of the cavity. The top of each protective shell 301 is fixedly connected with a connecting buckle 302. Multiple honeycomb holes 303 are equally spaced inside each protective shell 301. Protective covers 305 are fixedly connected to the left and right ends of each protective shell 301. A fixing component 304 is provided in the middle of each protective shell 301. Locking components 306 are installed on the left and right sides of each protective cover 305. The fixing component 304 includes a wheel frame 3041, which is fixedly connected to the middle of the front and rear sides of the mounting base plate 1, and an eccentric wheel 3042 is rotatably connected to the inner side of the wheel frame 3041. The locking assembly 306 includes a movable pin 3061, which is slidably connected to the bottom of the protective shell 301. A lever 3062 is fixedly connected to the outer wall of each of the multiple movable pins 3061, and a spring 3063 is fixedly connected to the end of each of the multiple movable pins 3061. A through hole 3064 is provided on the outer side of the movable pin 3061, and the movable pin 3061 is opened on the left and right sides inside the protective cover 305. Each of the multiple connecting buckles 302 has a connecting bolt 5 threadedly connected to its center, and each of the multiple connecting buckles 302 has a connecting port 9 on its left and right sides. Specifically, the two protective shells 301 are snapped together so that the inner wall of the protective shell 301 fits against the surface of the cavity shell 201 and the mounting base 1. The bolts on the connecting buckle 302 are tightened, and the initial installation of the protective shell 301 is completed by the tightening force of the bolts. The honeycomb holes 303 evenly distributed inside the protective shell 301 can reduce the amount of material used by the protective shell 301 itself, which helps to reduce the overall weight of the protective shell 301, while maintaining the structural strength of the protective shell 301. The eccentric wheel 3042 is rotated, and its edge presses down against the base of the protective shell 301. Because the wheel frame 3041 that fixes the eccentric wheel 3042 is directly connected to the mounting base 1, the protective shell 301 will be locked onto the mounting base 1 under the pressure of the eccentric wheel 3042. Then the two protective covers 305 are respectively... Install the cover 305 by aligning it with the openings on both sides of the housing 301. As the cover 305 moves inward along the opening direction, the edge of the cover 305 will press against the moving pin 3061 on the inner wall of the housing 301, causing the moving pin 3061 to be pressed into the groove inside the housing 301. The spring 3063 connected to the moving pin 3061 is then compressed. When the cover 305 moves to the designated position, the moving pin 3061 pops out under the elastic force of the spring 3063 and inserts into the through hole 3064 of the cover 305, thus locking the position of the cover 305. When it is necessary to remove the cover 305, manually move the lever 3062 connected to the moving pin 3061. The lever 3062 will drive the moving pin 3061 to exit the through hole 3064 inside the housing 301, and the cover 305 can be removed.

[0020] Reference Figure 3 and Figure 5The bottom of both the left and right ends of the protective shell 301 are provided with sliding grooves 7, and multiple heat dissipation ridges 8 are fixedly connected to the outer walls of the two protective shells 301. Specifically, the slide 7 provides space for the movement of the lever 3062 and also serves as a limit to prevent excessive displacement. The heat dissipation ridge 8 is an auxiliary heat dissipation component that can absorb residual heat on the cavity shell 201 and dissipate it into the surrounding air.

[0021] Working principle: The resistor 4 is sleeved inside the central sleeve 205. The central sleeve 205 is made of thermally conductive material, which conducts the heat generated by the resistor 4 during operation to the cooling water in the outer shell 201. The partition plate 2061 divides the space inside the outer shell 201 into multiple independent cavities. The coolant in each cavity circulates separately and is equipped with an independent inlet 202 and outlet 203. The coolant is poured into the mounting base plate 1 from the inlet 202. The spiral plate 2062 acts as a spiral guide, making the coolant spiral forward to ensure contact and cooling time, and then discharged from the outlet 203 to complete the cooling cycle. This mechanism independently separates the heat dissipation chambers in the mounting base plate 1, ensuring independent heat dissipation circulation in each area, shortening the coolant travel distance in each heat dissipation cycle, and solving the problem of inconsistent heat dissipation efficiency in different parts of the resistor element and reduced actual heat dissipation efficiency in the prior art. The two protective shells 301 are snapped together on the outer shell 201 and the mounting base 1, and the bolts on the connecting buckle 302 are tightened to complete the initial installation. The honeycomb holes 303 inside the protective shell 301 help to reduce the overall weight of the protective shell 301, balancing weight reduction and strength. The eccentric wheel 3042 is rotated to press down on the base of the protective shell 301. Because the wheel frame 3041 is directly connected to the mounting base 1, the protective shell 301 will be locked onto the mounting base 1 at this time. Then the cover 305 is placed on top. Installed at the openings on both sides of the protective cover 301, as the cover 305 moves inward, the moving pin 3061 is squeezed into the protective cover 301, the spring 3063 is compressed and inserted into the through hole 3064, thus locking the position of the cover 305. When it is necessary to release the installation, the lever 3062 is moved to drive the moving pin 3061 out of the through hole 3064. This mechanism provides an additional protective layer for the water cooling mechanism 2, which can play a role in waterproofing, dustproofing and a certain degree of protection against external impacts.

[0022] 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 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. A water-cooled resistance device comprising a mounting base plate (1), characterized in that: A water cooling mechanism (2) is installed in the middle of the top wall of the mounting base plate (1). The function of the water cooling mechanism (2) is to dissipate heat from the resistive element. A protective mechanism (3) is installed on the outer wall of the water cooling mechanism (2). The function of the protective mechanism (3) is to provide protection for the water cooling mechanism (2). The water cooling mechanism (2) includes a cavity shell (201), which is fixedly connected to the top of the mounting base plate (1). The top of the cavity shell (201) is equidistantly connected to a plurality of water inlets (202). Each of the plurality of water inlets (202) is provided with a water outlet (203) on the right side. Each of the plurality of water outlets (203) is connected to the top of the cavity shell (201). The left and right ends of the inner wall of the cavity shell (201) are fixedly connected to sealing plates (204). A central sleeve (205) runs through the inside of the cavity shell (201). A partition component (206) is installed on the outer wall of the central sleeve (205).

2. A water cooled resistance device as claimed in claim 1, wherein: The separating component (206) includes two separating pieces (2061), both of which are fixedly connected to the outer wall of the central sleeve (205). Spiral pieces (2062) are provided on the left and right sides of the two separating pieces (2061), and a plurality of spiral pieces (2062) are fixedly connected to the outer wall of the central sleeve (205) at equal intervals.

3. A water cooled resistance device as claimed in claim 1, wherein: The protective mechanism (3) includes two protective shells (301), both of which are located outside the outer shell of the cavity (201). The top of each of the two protective shells (301) is fixedly connected with a connecting buckle (302). Multiple honeycomb holes (303) are equally spaced inside each of the two protective shells (301). Covers (305) are fixedly connected to the left and right ends of each of the two protective shells (301). A fixing component (304) is provided in the middle of each of the two protective shells (301). Locking components (306) are installed on the left and right sides of each of the two covers (305).

4. A water cooled resistance device as claimed in claim 3, wherein: The fixing component (304) includes a wheel frame (3041), which is fixedly connected to the middle of the front and rear sides of the mounting base plate (1), and an eccentric wheel (3042) is rotatably connected to the inner side of the wheel frame (3041).

5. A water cooled resistance device as claimed in claim 3, wherein: The locking assembly (306) includes a movable pin (3061), which is slidably connected to the bottom of the protective shell (301). A lever (3062) is fixedly connected to the outer wall of each of the movable pins (3061), and a spring (3063) is fixedly connected to the end of each of the movable pins (3061). A through hole (3064) is provided on the outer side of the movable pin (3061), and the movable pin (3061) is opened on the left and right sides inside the cover (305).

6. A water cooled resistance device as claimed in claim 1, wherein: The center sleeve (205) is fixedly connected to a resistor (4), and the mounting base plate (1) has multiple mounting holes (6) equidistantly opened on the front and rear sides of the top wall.

7. A water cooled resistance device as claimed in claim 3, wherein: The bottom of the left and right ends of the protective shell (301) are provided with sliding grooves (7), and the outer walls of the two protective shells (301) are fixedly connected with multiple heat dissipation ribs (8).

8. A water cooled resistance device as claimed in claim 3, wherein: The middle part of each of the plurality of connecting buckles (302) is threadedly connected with a connecting bolt (5), and the left and right sides of each of the plurality of connecting buckles (302) are provided with a connecting port (9).