Distribution box cabinet with heat insulation mechanism
By introducing three sets of maintenance mechanisms into the distribution box cabinet, and utilizing stainless steel material and a double scraper design, the problem of jamming caused by dirt accumulation in the heat insulation curtain is solved, realizing automatic cleaning and stable opening and closing of the heat insulation curtain, ensuring normal heat dissipation of the distribution box and stable operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU DATANG POWER EQUIP CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional heat insulation curtains can become stuck due to dirt accumulation during long-term use, affecting normal opening and closing, which in turn can obstruct the heat dissipation of the distribution box or require frequent disassembly and maintenance.
Three sets of maintenance mechanisms were designed, including a rectangular mounting ring made of stainless steel, double scrapers, and adjusting bolts, for dynamic cleaning during the raising and lowering of the thermal curtain, scraping off dirt from the inside and outside of the curtain surface. Combined with the automatic raising and lowering function of the coil spring and hook, it ensures that the curtain surface is clean and prevents dirt from entering the winding drum.
It achieves full cleaning of the heat insulation curtain's retraction path, prevents dirt from getting stuck, ensures stable equipment operation, reduces maintenance frequency, ensures heat insulation effect, and improves equipment operation safety.
Smart Images

Figure CN224204639U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of distribution box cabinets, specifically a distribution box cabinet with a heat insulation mechanism. Background Technology
[0002] Distribution cabinets (boxes) are the final-level equipment in a power distribution system. Distribution cabinets are a general term for motor control centers. They are suitable for situations where the load is relatively dispersed and there are few circuits, or situations where the power load of the motor control center is concentrated and there are many circuits. They distribute the power of a certain circuit of the previous level of power distribution equipment to the nearest load. This level of equipment should provide protection, monitoring and control for the load. The components inside the distribution cabinet will generate heat during operation. Overheating can easily lead to equipment burnout. When the distribution cabinet is installed outdoors, the sun's radiation will cause the temperature of the distribution cabinet to be even higher, making it more prone to failure.
[0003] However, the application "A Distribution Box Cabinet with Heat Insulation Mechanism" with application number "202323192070.5" includes a distribution box, the top of which is fixedly connected to a rain shield, and the inner side of the rain shield is provided with a heat insulation component, which includes a winding drum, a spiral spring and a heat insulation curtain. This utility model features a winding groove inside the rain shield on the top of the distribution box. A connecting shaft for receiving the winding drum is fixed inside the winding groove. The winding drum is provided with winding force by an inner spiral spring. The upper end of the heat insulation curtain of the heat insulation component is fixed to the outer wall of the winding drum. After the heat insulation curtain passes through the bottom of the winding groove, its lower end is snapped onto the bottom plate of the distribution cabinet. This allows four heat insulation components to shield the distribution box from all sides for protection. While blocking and insulating against strong external light, the gaps between the heat insulation curtains do not affect the heat dissipation of the distribution cabinet itself. The overall structure is simple and easy to operate. However, during long-term use, if the surface of the heat insulation curtain accumulates too much dirt or contains particulate matter due to installation in an industrial or outdoor environment, it may get stuck during the next pull-out process after being wound up, making it impossible to pull out smoothly. This will seriously affect the normal use of the distribution box cabinet and may even require disassembly and repair of the winding drum. Utility Model Content
[0004] Based on this, the purpose of this utility model is to provide a distribution box cabinet with a heat insulation mechanism to solve the technical problem that traditional heat insulation curtains are stuck due to dirt accumulation during long-term use, affecting normal opening and closing, which in turn causes the heat dissipation of the distribution box to be obstructed or requires frequent disassembly and maintenance.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a distribution box cabinet with a heat insulation mechanism, comprising a distribution box cabinet, wherein the distribution box cabinet includes a cabinet body, and three sets of maintenance mechanisms are provided on the outer surface and both sides of the cabinet body;
[0006] The maintenance mechanism includes mounting rings, three of which are fixedly connected to the cabinet via connecting rods. A first scraper is provided on one side of the bottom of each mounting ring, and a movable block is slidably connected to the inner side of each mounting ring via a slide rail. A second scraper is provided at the bottom of the movable block, and the first and second scrapers are arranged opposite to each other.
[0007] The mounting ring has two screw holes on its outer side, and an adjusting bolt is installed in the screw holes. The adjusting bolt is rotatably connected to the mounting ring through a bearing.
[0008] By adopting the above technical solution and through the integrated design of three sets of maintenance mechanisms, the entire process of the heat insulation curtain's retraction and extension path is kept clean, preventing dirt from getting stuck and ensuring stable equipment operation.
[0009] Furthermore, the maintenance mechanism is made of stainless steel, the mounting ring is rectangular in shape, and the first scraper and the second scraper are used to scrape off dirt from the outer surface and inner side of the heat insulation curtain, respectively.
[0010] By adopting the above technical solution, the stainless steel material and rectangular structure enhance the corrosion resistance and rigidity of the maintenance mechanism, and the dual scrapers work together to clean dirt on the inside and outside, extending its service life.
[0011] Furthermore, the top of the cabinet is provided with a top cover, and the bottom of the top cover is provided with two second receiving slots and a first receiving slot. The two second receiving slots are opposite to the two sides of the cabinet, and the first receiving slot is opposite to the outer surface of the cabinet.
[0012] By adopting the above technical solution, the design of the receiving groove of the top cover optimizes the opening and closing path of the heat insulation curtain and prevents external impurities from entering the coiling spring mechanism.
[0013] Furthermore, the two second receiving slots and the first receiving slot are provided with heat insulation mechanisms, the heat insulation mechanisms including coil springs, and heat insulation curtains are wound around the coil springs, the bottom of the heat insulation curtains being provided with hooks.
[0014] By adopting the above technical solution, the combination of coil spring and heat insulation curtain realizes automatic opening and closing function, and hooks simplify the curtain fixing operation.
[0015] Furthermore, the cabinet has a base at the bottom, and three hanging rods are provided on the top outer side of the base. The three hanging rods are respectively attached to hooks at the bottom of the three heat insulation curtains.
[0016] By adopting the above technical solution, the base and hanging rod provide stable support for the heat insulation curtain, ensuring that the heat insulation layer effectively covers the cabinet.
[0017] Furthermore, the coil spring is used to roll up the heat insulation curtain, and the hanging rod and hook can be used to open the heat insulation curtain to provide heat insulation protection for the distribution box cabinet.
[0018] By adopting the above technical solution, the elastic reset of the coil spring and the heat insulation curtain after hanging together achieve efficient heat insulation and ensure stable internal temperature of the distribution box cabinet.
[0019] In summary, the present invention has the following main advantages:
[0020] 1. This utility model, through the setting of a maintenance mechanism, achieves full-process dirt interception along the retraction path of the thermal insulation curtain through the synergistic action of a dual-scraper dynamic cleaning system and adjusting bolts. The first scraper initially removes large particles of impurities from the outside of the curtain surface, while the second scraper, driven by the adjusting bolts, adheres tightly to the inside of the curtain surface to scrape off adhesive dirt. This design prevents dirt from entering the inside of the winding drum, thereby preventing curtain jamming and overload of the winding mechanism. At the same time, the stainless steel material and rectangular structure ensure the long-term reliability of the maintenance mechanism in harsh environments. Ultimately, this mechanism effectively solves the technical problem of traditional thermal insulation curtains being hindered in heat dissipation or requiring frequent disassembly and maintenance due to dirt accumulation, ensuring the stable operation of the distribution box cabinet. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a side view of the three-dimensional structure of the present invention;
[0023] Figure 3 This is a partial three-dimensional structural diagram of the distribution box cabinet of this utility model;
[0024] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.
[0025] In the diagram: 1. Distribution box cabinet; 101. Cabinet body; 102. Top cover; 103. First receiving slot; 104. Second receiving slot; 105. Base; 106. Hanging rod; 2. Heat insulation mechanism; 201. Coil spring; 202. Heat insulation curtain; 203. Hook; 3. Maintenance mechanism; 301. Connecting rod; 302. Mounting ring; 303. First scraper; 304. Movable block; 305. Adjusting bolt; 306. Second scraper. Detailed Implementation
[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0027] A type of electrical distribution box cabinet with a heat insulation mechanism, such as Figures 1-4As shown, the distribution box cabinet 1 includes a cabinet body 101. Three sets of maintenance mechanisms 3 are provided on the outer surface and both sides of the cabinet body 101. Each maintenance mechanism 3 includes mounting rings 302. The three mounting rings 302 are fixedly connected to the cabinet body 101 via connecting rods 301. A first scraper 303 is provided on one side of the bottom of each mounting ring 302. A movable block 304 is slidably connected to the inner side of each mounting ring 302 via a slide rail. A second scraper 306 is provided at the bottom of the movable block 304. The first scraper 303 and the second scraper 306 are positioned opposite each other. Two screw holes are provided on the outer side of the mounting ring 302, and adjusting bolts 305 are installed in these holes. The adjusting bolts 305 are rotatably connected to the mounting ring 302 via bearings. The maintenance mechanism 3 is fixed to the surface of the cabinet 101 via the mounting ring 302. Its dual-scraper structure, with the first scraper 303 and the second scraper 306, simultaneously scrapes away dirt from both the inner and outer surfaces of the curtain surface when the heat insulation curtain 202 is rolled up, preventing impurities from entering the winding drum 201 and causing jamming. Combined with the fine-tuning function of the adjusting bolts 305, it ensures that the scrapers are always in close contact with the curtain surface, completely solving the problem of poor winding caused by dirt accumulation in traditional heat insulation curtains and significantly reducing maintenance frequency.
[0028] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The maintenance mechanism 3 is made of stainless steel, and the mounting ring 302 has a rectangular structure. The first scraper 303 and the second scraper 306 are used to scrape away dirt from the outer and inner surfaces of the heat insulation curtain 202, respectively. The stainless steel maintenance mechanism 3 can resist corrosive substances in industrial or outdoor environments, ensuring that the structure does not deform after long-term use. The rectangular mounting ring 302 provides a stable running track for the scrapers. The first scraper 303 is responsible for initially removing large particles of impurities from the outside of the curtain, while the second scraper 306 is adjusted via the sliding rail of the movable block 304 to deeply clean the adhesive dirt on the inside. This division of labor design improves the dirt removal rate and avoids the risk of curtain jamming caused by incomplete cleaning on one side.
[0029] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The cabinet 101 has a top cover 102. The bottom of the top cover 102 has two second receiving slots 104 and a first receiving slot 103. The two second receiving slots 104 are positioned opposite the sides of the cabinet 101, and the first receiving slot 103 is positioned opposite the outer surface of the cabinet 101. The second receiving slots 104 and the first receiving slot 103 at the bottom of the top cover 102 correspond to the sides and outer surface of the cabinet 101, respectively, providing a vertical guide channel for the heat insulation curtain 202. The closed structure of the receiving slots prevents rainwater or dust from entering the installation area of the coil spring 201, avoiding impurities from affecting the elastic return performance of the coil spring. At the same time, the internal space design ensures that the heat insulation curtain 202 remains neat when rolled up, reducing the risk of wear caused by wrinkles.
[0030] See Figure 1 , Figure 2 , Figure 3 , Figure 4 A heat insulation mechanism 2 is installed in each of the two second receiving slots 104 and the first receiving slot 103. The heat insulation mechanism 2 includes a coil spring 201, and a heat insulation curtain 202 is wound around the coil spring 201. A hook 203 is provided at the bottom of the heat insulation curtain 202. The coil spring 201 drives the heat insulation curtain 202 to automatically roll up through elastic potential energy. The user only needs to pull down the hook 203 to the hanging rod 106 to complete the unfolding. The surface of the heat insulation curtain 202 is made of weather-resistant material to adapt to outdoor ultraviolet rays and temperature differences. The snap-on design of the hook 203 ensures that the curtain remains stably unfolded in strong winds. This design takes into account both ease of operation and heat insulation reliability, replacing the cumbersome process of traditional manual rolling.
[0031] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The cabinet 101 has a base 105 at its bottom, and three hanging rods 106 are located on the top outer side of the base 105. These three hanging rods 106 are respectively attached to hooks 203 at the bottom of three heat insulation curtains 202. The three hanging rods 106 on the top of the base 105 correspond to three sides of the cabinet 101, and the heat insulation curtains 202 are fixed in place by mechanical attachment to the hooks 203. The cylindrical design of the hanging rods 106 reduces friction on the curtain surface, and their layout is optimized for fluid dynamics to prevent the curtains from falling off due to strong winds. Simultaneously, the counterweight structure of the base 105 enhances overall stability and prevents the heat insulation mechanism 2 from failing due to external impacts.
[0032] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The coil spring 201 is used to retract the heat insulation curtain 202. After the hanging rod 106 and hook 203 are attached, the heat insulation curtain 202 can be opened to provide heat insulation protection for the distribution box cabinet 1. The coil spring 201 stores elastic potential energy when the heat insulation curtain 202 is unfolded, and releases energy when it is retracted to drive the curtain to automatically retract. Its torque parameters are precisely calculated to match the weight of the curtain. After being attached, the heat insulation curtain 202 and the surface of the cabinet 101 form an air insulation layer, blocking the conduction of external heat radiation. Tests have shown that this design can reduce the temperature inside the cabinet by 15-20°C, while avoiding the risk of heat dissipation interruption caused by the jamming of traditional heat insulation curtains, significantly improving the safety of equipment operation.
[0033] The implementation principle of this embodiment is as follows: First, when it is necessary to unfold the heat insulation curtain 202, the operator pulls down the bottom hook 203 of the heat insulation curtain 202. The coil spring 201 is pulled to release the wound heat insulation curtain 202, so that the curtain surface is vertically lowered along the second receiving groove 104 and the first receiving groove 103 of the top cover 102 until the hook 203 is engaged and locked with the hanging rod 106 on the base 105. At this time, the three-sided heat insulation curtain 202 is fully opened to form a heat insulation layer.
[0034] During the winding process, the coil spring 201 automatically retracts the heat insulation curtain 202 through elastic restoring force. When the curtain passes through the maintenance mechanism 3, its outer surface contacts the first scraper 303 fixed at the bottom of the mounting ring 302, initially scraping off the dust or particles attached to the surface. At the same time, the inner side forms dynamic friction with the second scraper 306 at the bottom of the movable block 304. The slide rail adjustment mechanism ensures that the second scraper 306 is always in close contact with the inner side of the curtain. The two scrapers work together to achieve bidirectional deep cleaning.
[0035] If the scraper blade wears down or the thickness of the heat insulation curtain 202 changes after long-term use, the position of the movable block 304 can be adjusted by rotating the adjusting bolt 305 to compensate for the contact pressure between the scraper blade and the curtain surface and ensure cleaning efficiency.
[0036] Finally, the cleaned heat insulation curtain 202 is completely retracted into the receiving groove of the top cover 102, preventing dirt from entering the coil spring 201 and causing jamming. At the same time, the stainless steel maintenance mechanism 3 maintains structural stability in industrial or outdoor environments, ensuring the long-term reliable operation of the heat insulation mechanism 2.
[0037] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A distribution box cabinet with a heat insulation mechanism, characterized in that: It includes a power distribution cabinet (1), which includes a cabinet body (101), and the outer surface and both sides of the cabinet body (101) are provided with three sets of maintenance mechanisms (3); The maintenance mechanism (3) includes mounting rings (302), and three mounting rings (302) are fixedly connected to the cabinet (101) via connecting rods (301). A first scraper (303) is provided on one side of the bottom of the mounting ring (302), and a movable block (304) is slidably connected to the inner side of the mounting ring (302) via a slide rail. A second scraper (306) is provided at the bottom of the movable block (304), and the first scraper (303) and the second scraper (306) are arranged opposite to each other. The mounting ring (302) has two screw holes on its outer side, and an adjusting bolt (305) is provided in the screw holes. The adjusting bolt (305) is rotatably connected to the mounting ring (302) through a bearing.
2. The distribution box cabinet with heat insulation mechanism according to claim 1, characterized in that: The maintenance mechanism (3) is made of stainless steel, the mounting ring (302) is rectangular, and the first scraper (303) and the second scraper (306) are used to scrape off dirt from the outer surface and inner side of the heat insulation curtain (202), respectively.
3. The distribution box cabinet with heat insulation mechanism according to claim 1, characterized in that: The top of the cabinet (101) is provided with a top cover (102). The bottom of the top cover (102) has two second receiving slots (104) and a first receiving slot (103). The two second receiving slots (104) are opposite to the two sides of the cabinet (101), and the first receiving slot (103) is opposite to the outer surface of the cabinet (101).
4. The distribution box cabinet with heat insulation mechanism according to claim 1, characterized in that: A heat insulation mechanism (2) is provided in the two second receiving slots (104) and the first receiving slot (103). The heat insulation mechanism (2) includes a coil spring (201) and a heat insulation curtain (202) is wound on the coil spring (201). A hook (203) is provided at the bottom of the heat insulation curtain (202).
5. The distribution box cabinet with heat insulation mechanism according to claim 4, characterized in that: The cabinet (101) has a base (105) at the bottom, and three hanging rods (106) are provided on the top outer side of the base (105). The three hanging rods (106) are respectively hung on the hooks (203) at the bottom of the three heat insulation curtains (202).
6. The distribution box cabinet with a heat insulation mechanism according to claim 5, characterized in that: The coil spring (201) is used to roll up the heat insulation curtain (202), and the hanging rod (106) and hook (203) can be used to open the heat insulation curtain (202) to provide heat insulation protection for the distribution box cabinet (1).
Citation Information
Patent Citations
Distribution box cabinet with heat insulation mechanism
CN221709166U