Local side power supply box body structure

Abstract

The utility model discloses a local side power supply box body structure, relates to the technical field of power supply, and mainly aims to improve the heat dissipation efficiency of components in a case. The main technical scheme of the utility model is as follows: the local side power supply box body structure comprises a case, an air inducing mechanism and a Venturi mechanism, circulation cavities are formed in the opposite side walls of the case respectively; the air inducing mechanism is mounted on the outer side of the front end of the circulation cavity; the Venturi mechanism comprises a pipe body, a taper pipe and a throat pipe, one end of the pipe body is connected to the inner side of the rear end of the circulation cavity, the other end of the pipe body faces the interior of the machine box, the taper pipe is coaxially arranged in the pipe body, the small end of the taper pipe faces the other end of the pipe body, and the throat pipe is arranged in the pipe body. One end of the throat pipe is connected to the side wall of the pipe body on the periphery of the taper pipe, and the other end of the throat pipe penetrates through the top wall of the case.

Description

Technical Field

[0001] This utility model relates to the field of power supply technology, and in particular to a central office power supply box structure. Background Technology

[0002] Remote and central office units are remote power supply devices that work together. The central office unit is usually installed indoors, while the remote unit is usually installed outdoors in remote areas. The central office unit boosts AC power and converts it to DC power, which is then connected to the remote unit. The remote unit steps down the DC power and converts it back to AC power to supply power to the equipment.

[0003] A central office unit typically includes an external chassis and internal electrical components, including a switching power supply, AC circuit breaker, three-wire socket, surge protector, DC circuit breaker, 4G communication module, and temperature control switch; it also includes a terminal block and power module, as well as a remote power supply control card, display screen, and fan.

[0004] Although existing central office server chassis are generally equipped with fans to improve airflow circulation within the chassis, the efficiency of airflow circulation inside the chassis still needs to be optimized, and the efficiency of temperature regulation within the chassis still needs to be improved. Utility Model Content

[0005] In view of this, the present invention provides a central office power supply enclosure structure, the main purpose of which is to improve the heat dissipation efficiency of the internal components of the enclosure.

[0006] To achieve the above objectives, this utility model mainly provides the following technical solutions:

[0007] This utility model embodiment provides a local power supply box structure, which includes: a chassis, an exhaust mechanism, and a venturi mechanism;

[0008] The opposite side walls of the chassis are respectively provided with flow cavities;

[0009] The air intake mechanism is installed on the outer front end of the flow cavity;

[0010] The Venturi mechanism includes a tube body, a conical tube, and a throat. One end of the tube body is connected to the inner rear end of the flow cavity, and the other end faces the inside of the chassis. The conical tube is coaxially disposed in the tube body, with the small end of the conical tube facing the other end of the tube body. One end of the throat is connected to the side wall of the tube body surrounding the conical tube, and the other end penetrates the top wall of the chassis.

[0011] The purpose of this utility model and the technical problems to be solved can be further achieved by the following technical measures.

[0012] Optionally, it may also include multiple baffles, which are arranged alternately within the flow cavity.

[0013] Optionally, the front sidewall of the chassis is provided with multiple exhaust vents.

[0014] Optionally, a first filter cotton is also included, which is installed at the inlet of the air intake mechanism.

[0015] Optionally, a second filter cotton is also included, which is installed at the other end of the throat.

[0016] Optionally, the baffle plate has a matrix arrangement of multiple ventilation holes, and the axial direction of the ventilation holes and the axial direction of the flow cavity are at an angle.

[0017] Optionally, the chassis is made entirely of aluminum alloy.

[0018] By employing the above technical solution, this utility model has at least the following advantages:

[0019] The air intake mechanism draws outside air into the flow chamber. The air flows to the rear end of the flow chamber. During this process, the flowing air exchanges heat with the inner wall of the flow chamber, which accelerates the diffusion of heat from the equipment inside the chassis to the side wall and plays a role in pre-cooling the equipment inside the chassis. The air temperature inside the flow chamber rises to a certain extent.

[0020] After heat exchange, the air flows through the tube and the conical tube in sequence. When the air flows at high speed through the small end of the conical tube, a negative pressure is generated in the space between the conical tube and the tube due to the Venturi effect. This forces the outside air to flow from the other end of the throat to the other end of the throat and into the tube. In this way, the outside air that has not been heat-exchanged mixes with the air inside the tube, causing the air temperature inside the tube to drop again. The cooled air then enters the chassis and flows through the various devices inside the chassis, carrying away the heat from each device.

[0021] By adopting this enclosure structure, the equipment inside the enclosure undergoes two heat exchange processes, which improves the heat dissipation efficiency of the equipment inside the enclosure. Attached Figure Description

[0022] Figure 1 A top view of a central office power supply box structure provided in an embodiment of this utility model;

[0023] Figure 2 A side view of a central office power supply box structure provided in an embodiment of this utility model;

[0024] Figure 3 A perspective view of a central office power supply box structure provided for an embodiment of this utility model;

[0025] Figure 4 for Figure 1 Enlarged view of section A;

[0026] Figure 5 for Figure 1 Enlarged view of section B.

[0027] The reference numerals in the accompanying drawings include: 1. Chassis; 2. Air intake mechanism; 3. Flow chamber; 4. Pipe; 5. Conical tube; 6. Throat; 7. Baffle plate; 8. Exhaust hole; 9. Ventilation hole; 10. Second filter cotton. Detailed Implementation

[0028] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods, structures, features, and effects according to this utility model application are described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "embodiments" or "embodiments" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0030] like Figure 1 , Figure 2 and Figure 4 As shown, an embodiment of the present invention provides a central office power supply box structure, which includes: a chassis 1, an exhaust fan 2, and a venturi mechanism;

[0031] The opposite side walls of the chassis 1 are respectively provided with flow cavities 3;

[0032] The air intake mechanism 2 is installed on the outer front end of the flow cavity 3;

[0033] The Venturi mechanism includes a tube body 4, a conical tube 5, and a throat tube 6. One end of the tube body 4 is connected to the inner rear end of the flow cavity 3, and the other end faces the interior of the housing 1. The conical tube 5 is coaxially disposed inside the tube body 4, with the small end of the conical tube 5 facing the other end of the tube body 4. One end of the throat tube 6 is connected to the side wall of the tube body 4 surrounding the conical tube 5, and the other end penetrates the top wall of the housing 1.

[0034] The working process of the central office power supply enclosure structure is as follows:

[0035] The air intake mechanism 2 draws outside air into the flow chamber 3. The air flows to the rear end of the flow chamber 3. During this process, the flowing air exchanges heat with the inner wall of the flow chamber 3, which accelerates the speed at which the heat of the equipment in the chassis 1 diffuses to the side wall and plays a role in pre-cooling the equipment in the chassis 1. The air temperature in the flow chamber increases to a certain extent.

[0036] After heat exchange, the air flows through tube 4 and cone tube 5 in sequence. When the air flows at high speed through the small end of cone tube 5, a negative pressure is generated in the space between cone tube 5 and tube 4 due to the Venturi effect. This forces the outside air to flow from the other end of throat tube 6 to one end of throat tube 6 and enter the interior of tube 4. In this way, the outside air that has not been heat-exchanged mixes with the air inside tube 4, causing the air temperature inside tube 4 to drop again. The cooled air then enters the chassis 1 and flows through the various devices inside the chassis 1, carrying away the heat from each device.

[0037] By adopting this enclosure structure, the equipment inside the enclosure 1 undergoes two heat exchange processes, which improves the heat dissipation efficiency of the equipment inside the enclosure 1.

[0038] Specifically, the air intake mechanism 2 uses an exhaust fan.

[0039] Specifically, the outer edge of the large end of the tapered tube 5 is fixedly welded to the inner wall of the tube body 4, thereby fixing the positional relationship between the tapered tube 5 and the tube body 4.

[0040] Specifically, the front side wall of the chassis 1 is fixedly connected to the handle, making it easy for operators to move the chassis 1.

[0041] like Figure 1 and Figure 5 As shown, in a specific embodiment, it also includes a plurality of baffles 7, which are arranged alternately in the flow cavity 3.

[0042] In this embodiment, specifically, multiple baffles 7 are arranged alternately in the flow cavity 3 to form a baffle space, which prolongs the travel distance of air in the flow cavity 3 and increases the heat exchange area of ​​the flowing air.

[0043] like Figure 3 As shown in the specific embodiment, the front sidewall of the chassis 1 is evenly distributed with a plurality of exhaust holes 8.

[0044] In this embodiment, specifically, after the air is mixed inside the pipe 4, it enters the chassis 1 from the other end of the pipe 4. The air flows from the rear space of the chassis 1 to the front side wall of the chassis 1 and is discharged through multiple exhaust holes 8. In this way, the flowing air can flow through all the equipment inside the chassis 1 and exchange heat with all the equipment inside the chassis 1, thereby improving the heat dissipation rate of the equipment inside the chassis 1.

[0045] Specifically, it also includes a third filter, which is installed at the location of multiple exhaust holes 8 to prevent external dust from entering.

[0046] In a specific embodiment, a first filter cotton is also included, which is installed at the inlet of the air-drawing mechanism 2.

[0047] In this embodiment, specifically, the air intake mechanism 2 guides the air after dust removal by the first filter cotton into the circulation cavity 3 to prevent external dust from entering the casing 1.

[0048] like Figure 2 As shown, in a specific embodiment, a second filter cotton 10 is also included, which is installed at the other end of the throat tube 6.

[0049] In this embodiment, specifically, after the outside air is filtered by the second filter cotton 10, it enters the tube body 4 along the throat 6, further preventing outside dust from entering the casing 1.

[0050] like Figure 5 As shown, in a specific embodiment, the baffle plate 7 has a plurality of ventilation holes 9 arranged in a matrix on its surface, and the axial direction of the ventilation holes 9 and the axial direction of the flow cavity 3 are at an angle.

[0051] In this embodiment, specifically, the thickness of each baffle 7 is 0.5 cm, the surface direction of the baffle 7 is perpendicular to the length direction (axial direction) of the flow cavity 3, and the angle between the axial direction of each ventilation hole 9 and the axial direction of the flow cavity 3 is 45°.

[0052] When the air in the flow cavity 3 flows through the baffle 7, part of the air flows along the edge of the baffle 7, and the other part of the air flows through the baffle 7 through multiple ventilation holes 9. The contact area between the air and the baffle 7 is increased, which also increases the air flow rate per unit time in the flow cavity 3 (compared to when the baffle 7 has no ventilation holes 9).

[0053] Since the baffle 7 and the side wall of the flow cavity 3 are integrally connected, the contact area between the air and the baffle 7 is increased, which indirectly increases the contact area between the air and the side wall of the flow cavity 3, thus increasing the heat exchange efficiency of the flowing air.

[0054] When air flows through the ventilation hole 9, the direction of air flow is at an angle relative to the axis of the flow cavity 3. Thus, the air flowing through the ventilation hole 9 of the baffle plate 7 is deflected relative to the axis of the flow cavity 3 for a certain distance before it can flow along the axis of the flow cavity 3 again, which indirectly prolongs the travel distance of the air in the flow cavity 3.

[0055] In a specific embodiment, the chassis 1 is made entirely of aluminum alloy.

[0056] In this embodiment, specifically, the aluminum alloy chassis 1 has a high thermal conductivity, which can quickly conduct the heat emitted by the equipment inside the chassis 1 to the air inside the flow cavity 3, thereby improving the efficiency of heat exchange of the flowing air.

[0057] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A central office power supply enclosure structure, characterized in that, include: The chassis has flow cavities on its opposite side walls; An air intake mechanism is installed on the outer front end of the flow cavity; A Venturi mechanism, comprising a tube body, a conical tube, and a throat. One end of the tube body is connected to the inner rear end of the flow cavity, and the other end faces the interior of the chassis. The conical tube is coaxially disposed within the tube body, with its small end facing the other end of the tube body. One end of the throat is connected to the side wall of the tube body surrounding the conical tube, and the other end penetrates the top wall of the chassis.

2. The central office power supply enclosure structure according to claim 1, characterized in that, It also includes multiple baffles, which are arranged alternately in the flow cavity.

3. The central office power supply enclosure structure according to claim 1, characterized in that, The front side wall of the chassis has multiple exhaust vents.

4. The central office power supply enclosure structure according to claim 1, characterized in that, It also includes a first filter cotton, which is installed at the inlet of the air intake mechanism.

5. The central office power supply enclosure structure according to claim 1, characterized in that, It also includes a second filter cotton, which is installed at the other end of the throat.

6. The central office power supply enclosure structure according to claim 2, characterized in that, The baffle plate has multiple ventilation holes arranged in a matrix on its surface, and there is an angle between the axial direction of the ventilation holes and the axial direction of the flow cavity.

7. The central office power supply enclosure structure according to any one of claims 1 to 6, characterized in that, The chassis is made entirely of aluminum alloy.

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