Network cabinet heat dissipation structure
By using aluminum mounting plates to dissipate heat in the network server rack, liquid cooling coils to cool the air and circulating coolant, combined with exhaust fans and cooling fans to form air circulation, the problem of low heat dissipation efficiency in existing network server racks is solved, achieving a more efficient heat dissipation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DAWNING ZHITONG INFORMATION TECH CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-08-04
AI Technical Summary
Existing network server rack cooling structures mainly rely on cooling fans to generate suction to expel hot air and introduce cool air through air inlets for air convection, resulting in low cooling efficiency.
An aluminum mounting plate is used to quickly dissipate heat from the equipment. Combined with liquid cooling coils to cool the air and recycle the coolant, and with the help of exhaust fans and cooling fans to form an air circulation path, full-coverage heat dissipation is achieved.
It improves heat dissipation efficiency, avoids localized high temperatures, ensures stable equipment operation, and enhances the stability and efficiency of heat dissipation.
Smart Images

Figure CN224596788U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of network cabinet technology, and in particular to the heat dissipation structure of network cabinets. Background Technology
[0002] A network cabinet is a standard structured cabinet used for the centralized installation, management, and protection of network equipment. It is typically made of a metal frame and possesses good heat dissipation, load-bearing capacity, and electromagnetic shielding capabilities. The network cabinet's heat dissipation structure refers to a systematic heat dissipation solution designed to ensure the stable operation of the network equipment inside the cabinet within a safe temperature range. Its core objective is to effectively dissipate the heat generated during equipment operation through reasonable airflow organization, heat dissipation component layout, and environmental control, preventing performance degradation or hardware failure due to overheating.
[0003] To address this, patent CN216017342U discloses a heat dissipation structure for a network server rack, including a rack body, an air intake mechanism, and a heat dissipation mechanism. The rack body includes a rack body, a lower buffer plate and a middle partition plate built into the rack body. The air intake mechanism includes an air inlet on the side of the rack body and an air exchange slot inside the rack body. The heat dissipation mechanism includes a device housing installed on the top of the rack body, a cooling fan installed inside the device housing, and a power component for driving the cooling fan. In this invention, the power component drives the cooling fan to rotate and generate airflow. Therefore, the heat dissipation pipes installed inside the cooling fan obtain a suction force. The exhaust heads connected to the heat dissipation pipes begin to draw hot air from inside the rack body into the device housing and exhaust it to the outside. Meanwhile, cold air from the outside enters the rack body through the air inlet, completing the heat exchange process. Furthermore, the exhaust heads are evenly distributed in the air exchange slots, making heat dissipation more comprehensive.
[0004] The heat dissipation structure of the network server rack mentioned above mainly relies on the suction force generated by the cooling fan to expel hot air and introduce cold air through the air inlet to complete the heat exchange. It only adopts the air convection heat dissipation method, which has low heat dissipation efficiency. Utility Model Content
[0005] The purpose of this invention is to provide a heat dissipation structure for network server racks, in order to solve the problem of low heat dissipation efficiency in existing heat dissipation structures for network server racks.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a network cabinet heat dissipation structure, including a cabinet body;
[0007] A cabinet door is installed on one side of the cabinet, a placement board is fixed inside the cabinet, and a heat dissipation structure is installed on the top of the cabinet.
[0008] A cooling structure is fixed to one side of the top of the cabinet. The cooling structure includes a cooling water tank fixed to one side of the top of the cabinet. A heat dissipation groove is provided on one side of the cabinet. A dustproof net is installed on one side of the heat dissipation groove. A liquid cooling coil is installed inside the heat dissipation groove. A first connecting pipe is installed on one side of the bottom of the cabinet at one end of the liquid cooling coil. A first water pump is installed on the outside of the first connecting pipe. A water supply pipe is installed at one end of the first connecting pipe. A water inlet pipe is fixed to one side of the water supply pipe. A cooling shell is fixed to the bottom of the plate placed inside the cabinet.
[0009] Preferably, the placement panels are evenly spaced inside the cabinet, and the placement panels are made of aluminum.
[0010] With the above structure, the aluminum plate has good thermal conductivity, which can quickly conduct away the heat generated by the equipment placed on it during operation, thus preventing heat from accumulating in local areas of the equipment.
[0011] Preferably, the heat dissipation structure includes exhaust fans installed on both sides of the top of the cabinet, a first reciprocating screw installed on one side of the cabinet interior, a second reciprocating screw installed on one side of the first reciprocating screw, a motor installed at one end of the first reciprocating screw at the top of the cabinet, a drive wheel installed on the outer side of the bottom of the first reciprocating screw inside the cabinet, a driven wheel installed on the outer side of the bottom of the second reciprocating screw, a transmission belt installed on the outer side of the drive wheel and the driven wheel, a movable seat installed on the outer side of the first reciprocating screw and the second reciprocating screw, threaded grooves provided on the outer side of the first reciprocating screw and the second reciprocating screw inside the movable seat, and a cooling fan installed on one side of the movable seat.
[0012] Preferably, the exhaust fans are symmetrically distributed at the top of the cabinet, the first reciprocating screw and the second reciprocating screw are symmetrically distributed on one side inside the cabinet, and the movable seat is threadedly connected to the first reciprocating screw and the second reciprocating screw through threaded grooves.
[0013] With the above structure, the symmetrically distributed exhaust fans work in conjunction with the internal cooling fans of the cabinet to form an air circulation path that enters from the bottom and exits from the top, thereby improving the overall ventilation efficiency. Furthermore, the reciprocating movement of the cooling fans ensures full coverage of the heat dissipation range, avoiding localized heat dissipation blind spots.
[0014] Preferably, a return water pipe is installed on the other side of the cabinet, a water outlet pipe is fixed on one side of the return water pipe, a second connecting pipe is installed at one end of the return water pipe, and a second water pump is installed on the outside of the second connecting pipe.
[0015] Preferably, a cooler is installed inside the cooling water tank, one end of the liquid cooling coil is fixedly connected to the bottom end of the cooling water tank, and the other end of the liquid cooling coil is fixedly connected to one end of the first connecting pipe.
[0016] With the above structure, the liquid cooling coil is installed in the heat dissipation groove during use. When the cooling fan is running, the outside air is drawn in through the heat dissipation groove and is cooled by the liquid cooling coil as it flows over the surface of the liquid cooling coil. The resulting cold air is then blown into the cabinet, improving the overall cooling efficiency of the cabinet.
[0017] Preferably, the water inlet pipes are evenly spaced on one side of the water supply pipe, and one end of each water inlet pipe extends through one side of the cabinet into the interior of the cabinet and is fixedly connected to one side of the cooling shell. A moisture-absorbing cotton is installed at the bottom of the cooling shell.
[0018] With the above structure, during use, the coolant flows directly into the cooling shell and contacts the placement plate. The aluminum placement plate quickly conducts heat from the equipment, achieving rapid cooling. Additionally, the moisture-absorbing cotton installed at the bottom of the cooling shell absorbs moisture from the air inside the cabinet, reducing air humidity.
[0019] Preferably, the water outlet pipes are evenly spaced on one side of the return water pipe, and one end of each water outlet pipe extends through one side of the cabinet into the interior of the cabinet and is fixedly connected to the other side of the cooling shell. One end of the second connecting pipe is fixedly connected to one side of the cooling water tank.
[0020] With the above structure, when the coolant absorbs heat from the equipment and heats up in the cooling shell, it flows into the return pipe through the outlet pipe, and then returns to the cooling water tank for cooling through the second connecting pipe, forming a complete circulation path and ensuring that the heated coolant is evenly recovered.
[0021] The advantages of the network cabinet heat dissipation structure provided by this utility model are as follows:
[0022] By setting up a heat dissipation structure, and by using exhaust fans and cooling fans in conjunction to form air convection, the heat inside the cabinet can be quickly discharged. At the same time, the cooling fans move up and down with the movable base to cover different height areas of the cabinet, so that the cool air is evenly distributed, avoiding local high temperatures and further improving heat dissipation efficiency.
[0023] By incorporating a cooling structure that cools the air through liquid cooling coils and then blows it into the cabinet by a cooling fan, the temperature of the air entering the cabinet can be effectively reduced, enhancing the cooling effect. Furthermore, the coolant absorbs heat from the equipment within the cooling shell, achieving direct cooling of the equipment. The coolant is also recycled, continuously removing heat and ensuring the stability and efficiency of heat dissipation. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0025] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;
[0026] Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention;
[0027] Figure 4 This is a three-dimensional structural diagram of the cooling structure of this utility model;
[0028] Figure 5 This is a three-dimensional structural diagram of the heat dissipation structure of this utility model.
[0029] The following are the annotations in the diagram: 1. Cabinet body; 2. Cabinet door; 3. Placement plate; 4. Heat dissipation structure; 401. Exhaust fan; 402. First reciprocating screw; 403. Second reciprocating screw; 404. Motor; 405. Drive wheel; 406. Driven wheel; 407. Drive belt; 408. Moving seat; 409. Threaded groove; 410. Radiator fan; 5. Cooling structure; 501. Cooling water tank; 502. Liquid cooling coil; 503. First connecting pipe; 504. First water pump; 505. Water supply pipe; 506. Water inlet pipe; 507. Cooling shell; 508. Water return pipe; 509. Water outlet pipe; 510. Second connecting pipe; 511. Second water pump; 512. Heat dissipation groove; 513. Dustproof net. Detailed Implementation
[0030] 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.
[0031] Please see Figure 1-5 The network cabinet heat dissipation structure provided by this utility model includes a cabinet body 1.
[0032] Reference Figure 2 , Figure 3 and Figure 5As shown, a cabinet door 2 is installed on one side of the cabinet 1. Placement panels 3 are fixed inside the cabinet 1, and are evenly spaced. The placement panels 3 are made of aluminum. A heat dissipation structure 4 is installed at the top of the cabinet 1, including exhaust fans 401 installed on both sides of the top of the cabinet 1. A first reciprocating screw 402 is installed on one side inside the cabinet 1, and a second reciprocating screw 403 is installed on one side of the first reciprocating screw 402. A motor 404 is installed at one end of the first reciprocating screw 402 at the top of the cabinet 1. A drive wheel 405 is installed on the outer side of the bottom of the first reciprocating screw 402 inside the cabinet 1, and a driven wheel 405 is installed on the outer side of the bottom of the second reciprocating screw 403. A drive belt 407 is installed on the outer side of the drive wheel 405 and the driven wheel 406. A movable seat 408 is installed on the outer side of the first reciprocating screw 402 and the second reciprocating screw 403. Threaded grooves 409 are provided on the outer side of the first reciprocating screw 402 and the second reciprocating screw 403 inside the movable seat 408. A cooling fan 410 is installed on one side of the movable seat 408. Exhaust fans 401 are symmetrically distributed at the top of the cabinet 1. The first reciprocating screw 402 and the second reciprocating screw 403 are symmetrically distributed on one side inside the cabinet 1. The movable seat 408 is threadedly connected to the first reciprocating screw 402 and the second reciprocating screw 403 through the threaded grooves 409.
[0033] The motor 404 drives the first reciprocating screw 402 to rotate, causing the drive wheel 405 to rotate. The drive wheel drives the driven wheel 406 to rotate via the transmission belt 407, which in turn causes the second reciprocating screw 403 and the first reciprocating screw 402 to rotate synchronously. The movable seat 408 is threadedly connected to the first and second reciprocating screws via the threaded groove 409. The rotation of the screws causes the movable seat 408 to move up and down, which in turn causes the cooling fan 410 to move back and forth with the movable seat. At the same time, the cooling fan 410 operates, blowing cool air into the cabinet, thereby achieving uniform heat dissipation. In addition, the exhaust fans 401 are symmetrically distributed at the top of the cabinet, working in conjunction with the cooling fans 410 to form better air convection, enhance the heat dissipation effect, and promote air circulation and heat dissipation.
[0034] Reference Figures 1-4As shown, a cooling structure 5 is fixed to one side of the top of the cabinet 1. The cooling structure 5 includes a cooling water tank 501 fixed to one side of the top of the cabinet 1. A heat dissipation groove 512 is provided on one side of the cabinet 1. A dustproof net 513 is installed on one side of the heat dissipation groove 512. A liquid cooling coil 502 is installed inside the heat dissipation groove 512. A first connecting pipe 503 is installed on one side of the bottom of the cabinet 1 at one end of the liquid cooling coil 502. A first water pump 504 is installed on the outside of the first connecting pipe 503. A water supply pipe 505 is installed at one end of the first connecting pipe 503. A water inlet pipe 506 is fixed to one side of the water supply pipe 505. A cooling shell 507 is fixed to the bottom of the plate 3 placed inside the cabinet 1. A return water pipe 508 is installed on the other side of the cabinet 1. A water outlet pipe 509 is fixed to one side of the return water pipe 508. A second connecting pipe 510 is installed at one end of the return water pipe 508. A second water pump 511 is installed on the outside of the second connecting pipe 510. A cooler is installed inside the cooling water tank 501. One end of the liquid cooling coil 502 is fixedly connected to the bottom of the cooling water tank 501. The other end of the liquid cooling coil 502 is fixedly connected to one end of the first connecting pipe 503. The inlet pipe 506 is evenly distributed on one side of the water supply pipe 505. One end of the inlet pipe 506 passes through one side of the cabinet 1 and extends into the interior of the cabinet 1 and is fixedly connected to one side of the cooling shell 507. A moisture-absorbing cotton is installed at the bottom of the cooling shell 507. The outlet pipe 509 is evenly distributed on one side of the return pipe 508. One end of the outlet pipe 509 passes through one side of the cabinet 1 and extends into the interior of the cabinet 1 and is fixedly connected to the other side of the cooling shell 507. One end of the second connecting pipe 510 is fixedly connected to one side of the cooling water tank 501.
[0035] Coolant from the cooling water tank 501 enters the liquid cooling coil 502, which in turn causes the cooling fan 410 to blow outside air into the cabinet 1 through the heat dissipation slot 512, cooling the air as it passes through the liquid cooling coil 502. One end of the liquid cooling coil 502 is connected to one end of the first connecting pipe 503. By starting the first water pump 504, coolant is drawn into the first connecting pipe 503 and transported to the inlet pipe 506 through the water supply pipe 505. One end of the inlet pipe 506 is fixedly connected to one side of the cooling shell 507, allowing coolant to enter the cooling shell 507 and absorb the heat from the equipment on the placement plate 3, thus cooling the interior of the cabinet. By starting the second water pump 511, the coolant, after absorbing heat in the cooling shell 507, returns to the cooling water tank 501 through the outlet pipe 509, return pipe 508, and second connecting pipe 510 for further cooling, thus ensuring the recycling of coolant.
[0036] Although the present invention 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 invention should be included within the protection scope of the present invention.
Claims
1. A network cabinet heat dissipation structure, including the cabinet body (1); Its features are: A cabinet door (2) is installed on one side of the cabinet (1), a placement board (3) is fixed inside the cabinet (1), and a heat dissipation structure (4) is installed on the top of the cabinet (1). A cooling structure (5) is fixed to one side of the top of the cabinet (1). The cooling structure (5) includes a cooling water tank (501) fixed to one side of the top of the cabinet (1). A heat dissipation groove (512) is provided on one side of the cabinet (1). A dustproof net (513) is installed on one side of the heat dissipation groove (512). A liquid cooling coil (502) is installed inside the heat dissipation groove (512). A first connecting pipe (503) is installed on one side of the bottom of the cabinet (1) at one end of the liquid cooling coil (502). A first water pump (504) is installed on the outside of the first connecting pipe (503). A water supply pipe (505) is installed at one end of the first connecting pipe (503). A water inlet pipe (506) is fixed on one side of the water supply pipe (505). A cooling shell (507) is fixed to the bottom of the plate (3) placed inside the cabinet (1).
2. The network cabinet heat dissipation structure of claim 1, wherein: The placement plates (3) are evenly distributed inside the cabinet (1), and the placement plates (3) are made of aluminum.
3. The network cabinet heat dissipation structure of claim 1, wherein: The heat dissipation structure (4) includes exhaust fans (401) installed on both sides of the top of the cabinet (1), a first reciprocating screw (402) installed on one side inside the cabinet (1), a second reciprocating screw (403) installed on one side of the first reciprocating screw (402), a motor (404) installed at one end of the first reciprocating screw (402) at the top of the cabinet (1), and a drive wheel (405) installed on the outer side of the bottom of the first reciprocating screw (402) inside the cabinet (1). A driven wheel (406) is installed on the outer side of the bottom of the drive wheel (405) and the driven wheel (406). A transmission belt (407) is installed on the outer side of the drive wheel (405) and the driven wheel (406). A movable seat (408) is installed on the outer side of the first reciprocating screw (402) and the second reciprocating screw (403). A threaded groove (409) is provided on the outer side of the first reciprocating screw (402) and the second reciprocating screw (403) inside the movable seat (408). A cooling fan (410) is installed on one side of the movable seat (408).
4. The network cabinet heat dissipation structure of claim 3, wherein: The exhaust fan (401) is symmetrically distributed at the top of the cabinet (1), the first reciprocating screw (402) and the second reciprocating screw (403) are symmetrically distributed on one side inside the cabinet (1), and the movable seat (408) is threadedly connected to the first reciprocating screw (402) and the second reciprocating screw (403) through the threaded groove (409).
5. The network cabinet heat dissipation structure of claim 1, wherein: A return water pipe (508) is installed on the other side of the cabinet (1). A water outlet pipe (509) is fixed on one side of the return water pipe (508). A second connecting pipe (510) is installed at one end of the return water pipe (508). A second water pump (511) is installed on the outside of the second connecting pipe (510).
6. The network cabinet heat dissipation structure of claim 1, wherein: The cooling water tank (501) is equipped with a cooler, which is a semiconductor cooling chip. One end of the liquid cooling coil (502) is fixedly connected to the bottom end of the cooling water tank (501), and the other end of the liquid cooling coil (502) is fixedly connected to one end of the first connecting pipe (503).
7. The network cabinet heat dissipation structure of claim 1, wherein: The water inlet pipes (506) are evenly distributed on one side of the water supply pipe (505). One end of each water inlet pipe (506) extends through one side of the cabinet (1) into the interior of the cabinet (1) and is fixedly connected to one side of the cooling shell (507). The bottom of the cooling shell (507) is equipped with moisture-absorbing cotton.
8. The network cabinet heat dissipation structure of claim 5, wherein: The outlet pipes (509) are evenly distributed on one side of the return pipe (508). One end of each outlet pipe (509) extends through one side of the cabinet (1) into the interior of the cabinet (1) and is fixedly connected to the other side of the cooling shell (507). One end of the second connecting pipe (510) is fixedly connected to one side of the cooling water tank (501).