Protection structure for direct current metering device
By introducing a protective structure consisting of a rotating rod, bevel gear, protective cover, reinforcement components, and flame-retardant components into the DC metering device, the problem of spontaneous combustion of the DC metering device under strong current overload is solved, thus achieving safety protection for maintenance personnel.
Patent Information
- Application Number
- CN202520154419.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing DC metering devices are prone to spontaneous combustion when subjected to strong current overload, and the released heat is not easily contained, failing to effectively protect the safety of maintenance personnel.
A protective structure including a rotating rod, a bevel gear, a protective cover, a reinforcement component, and a flame-retardant component is designed. The rotating rod controls the opening and closing of the protective cover, the reinforcement component stabilizes the protective cover, the flame-retardant component reduces the outflow of spontaneous combustion heat, and the vent holes and flame-retardant material absorb heat, thereby achieving safety protection for maintenance personnel.
It effectively blocks external forces, reduces the outflow of heat from spontaneous combustion, enhances the self-ignition protection effect of DC metering devices, and ensures the safety of maintenance personnel.
Smart Images
Figure CN223910969U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to direct current metering device technical field, specifically is a kind of protective structure for direct current metering device. BACKGROUND
[0002] Direct current metering device is the equipment for measuring direct current electric energy, usually by direct current electric energy meter, voltage transformer, current transformer and its secondary circuit etc., in solar photovoltaic power generation, wind power generation etc.
[0003] The working principle of direct current metering device is based on Ohm's law and electric power formula. In direct current circuit, the calculation formula of electric energy is W=UIt. Direct current electric energy meter measures voltage and current in direct current circuit, and carries out integral operation, to obtain the metering value of electric energy.
[0004] Long time use finds that, when existing direct current metering device is used, overload occurs when strong current is encountered, and self-ignition phenomenon occurs, the existing direct current metering device is equipped with fuse to ensure the safety of direct current metering device, but the heat released during self-ignition is not easy to block, and the maintenance personnel are protected.
[0005] Therefore, the utility model provides a kind of protective structure for direct current metering device. UTILITY MODEL CONTENTS
[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background art is solved.
[0007] The utility model solves the technical scheme that the utility model discloses a kind of protective structure for direct current metering device, including direct current metering device body;The rotating rod is rotationally engaged with the side wall of the direct current metering device body;The first bevel gear is fixedly connected with the side wall of the rotating rod;The second bevel gear is hingedly connected with the side wall of the first bevel gear;The second bevel gear is rotationally engaged with the side wall of the direct current metering device body;The first fixed rod is fixedly connected with the end of the first fixed rod;The protective cover is fixedly connected with the outer side wall of the protective cover;The reinforcing assembly is fixedly connected with the outer side wall of the protective cover;The fire-retardant assembly is fixedly connected with the outer side wall of the protective cover;Through the above structure, the meshing between the first bevel gear and the second bevel gear can be controlled by the setting of the rotating rod to the deployment and closure of the protective cover, the external force can be blocked and protected by the protective cover, the closed protective cover can be reinforced and stabilized by the setting of the reinforcing assembly, the self-ignition heat flow caused by excessive current in the direct current metering device body can be reduced by the fire-retardant assembly, the operation of maintenance personnel is protected, and the self-ignition protection effect of the protective structure for direct current metering device is enhanced.
[0008] Preferably, the reinforcing assembly comprises a first fixing seat; a reinforcing plate is rotationally connected to the inner side wall of the first fixing seat; a fixing bolt is screw-connected to the middle part of the reinforcing plate; a second fixing rod is fixedly connected to the outer side wall of the protective cover; the fixing bolt and the second fixing rod are screw-connected to the inner side wall of the second fixing rod; through the above structure, the fixing bolt and the second fixing rod can be used to reinforce the closed protective cover by the reinforcing plate, so that the closed protective cover will not be expanded due to external force, and the closing reinforcing effect of the protection structure for the direct current metering device is further improved.
[0009] Preferably, the protective cover is provided with air holes in the side wall; the air holes are uniformly distributed in the side wall of the protective cover; through the above structure, the air holes can quickly discharge heat when the direct current metering device body is self-ignited, and the heat is absorbed and blocked by the fire-retardant assembly, so that the heat dissipation guiding effect of the protection structure for the direct current metering device is further improved.
[0010] Preferably, the fire-retardant assembly comprises a heat-conducting layer; a fire-retardant layer is mounted on the side wall of the heat-conducting layer; through the above structure, the heat-conducting layer made of graphite material can guide the heat guided by the air holes, and the heat transferred by the heat-conducting layer can be absorbed by the fire-retardant layer made of ceramic material, so that the maintenance threat caused by heat dissipation is reduced, and the fire-retardant effect of the protection structure for the direct current metering device is further improved.
[0011] Preferably, the control column is made of copper; through the above structure, the control column made of copper as the casting material can quickly guide out the heat, facilitate the rotation control of the rotating rod, and further improve the control effect of the protection structure for the direct current metering device.
[0012] Preferably, the protective cover is provided with an observation window; the observation window is made of transparent heat-insulating material; through the above structure, the observation window can be used to observe the use condition of the direct current metering device body, and the observation effect of the protection structure for the direct current metering device is further improved.
[0013] Preferably, the control column is provided with anti-skid blocks; the anti-skid blocks are uniformly distributed on the side wall of the control column; through the above structure, the anti-skid blocks can make the control column more stable during rotation, and the protection effect of the protection structure for the direct current metering device is further improved.
[0014] The beneficial effects of the utility model are as follows:
[0015] 1. The utility model relates to a protection structure for direct current metering device, the meshing between first bevel gear and second bevel gear can be utilized to the setting of rotary rod, the unfolding and closing of the protection cover is controlled, the external force can be blocked protection through the protection cover, the setting of reinforcing component can reinforce the closed protection cover and stabilize, the self -ignition heat flow of the excessive current in the direct current metering device body is reduced through the fire -retardant component, the operation of maintenance personnel is protected, and the self -ignition protection effect of the protection structure for direct current metering device is strengthened.
[0016] 2. The utility model relates to a protection structure for direct current metering device, the setting of fixed peg and second fixed rod can utilize reinforcing plate to reinforce the closed protection cover, and the unfolding situation does not appear when the protection cover is closed because of external force, and the closed reinforcing effect of the protection structure for direct current metering device is further strengthened. ACCURACY
[0017] The utility model will be further described below in combination with the drawings.
[0018] Figure 1 It is the perspective drawing of the utility model;
[0019] Figure 2 It is the first fixed rod structure schematic view in the utility model;
[0020] Figure 3 It is the vent structure schematic view in the utility model;
[0021] Figure 4 It is the fixed peg structure schematic view in the utility model.
[0022] In the drawing: 1, direct current metering device body;11, rotary rod;12, first bevel gear;13, second bevel gear;14, first fixed rod;15, protection cover;2, first fixed seat;21, reinforcing plate;22, fixed peg;23, second fixed rod;3, vent;4, heat conduction layer;41, fire -retardant layer;5, control column;6, observation window;7, antiskid block. SPECIFIC IMPLEMENTATION
[0023] In order to make the technical means, creative characteristics, reach the purpose and easy to understand the effect of the utility model, the utility model is further described below in combination with specific implementation.
[0024] For example Figures 1 to 4As shown, the utility model discloses a kind of protective structure for direct current metering device, including direct current metering device body 1;Rotary pole 11 is rotationally cooperated with the lateral wall of direct current metering device body 1;First bevel gear 12 is fixedly connected with the lateral wall of rotary pole 11;Second bevel gear 13 is hinged with the lateral wall of first bevel gear 12;Second bevel gear 13 and the lateral wall of direct current metering device body 1 are rotationally cooperated;First fixed rod 14 is fixedly connected with the lateral wall of second bevel gear 13;Protective cover 15 is fixedly connected with the outer lateral wall of first fixed rod 14;Reinforcing assembly is fixedly connected with the outer lateral wall of protective cover 15;Flame-retardant assembly is fixedly connected with the outer lateral wall of protective cover 15;When working, first bevel gear 12 can be rotated by rotary pole 11, and first fixed rod 14 can be used to unfold and close protective cover 15 using second bevel gear 13 hinged with the lateral wall of first bevel gear 12, by the size setting of two protective covers 15, two protective covers 15 can be reduced when rotating adjustment Blockage influence, external force suffered by direct current metering device body 1 can be blocked and protected by protective cover 15, the heat of direct current metering device body 1 inside can be reduced to escape by flame-retardant assembly, to cause harm to maintenance personnel, closed protective cover 15 can be reinforced by reinforcing assembly;The meshing between first bevel gear 12 and second bevel gear 13 can be used by the setting of rotary pole 11 to control the unfolding and closing of protective cover 15, external force can be blocked and protected by protective cover 15, closed protective cover 15 can be reinforced and stabilized by the setting of reinforcing assembly, the self-ignition heat of direct current metering device body 1 inside caused by excessive current can be reduced to flow out by flame-retardant assembly, to the operation of maintenance personnel Safety protection, the self-ignition protection effect of protective structure for direct current metering device is strengthened.
[0025] As Figures 1 to 4 As shown, reinforcing assembly includes first fixed seat 2;First fixed seat 2 inner lateral wall rotationally cooperated with reinforcing plate 21;Fixed bolt 22 is screw-connected in the middle part of reinforcing plate 21;Second fixed rod 23 is fixedly connected with the outer lateral wall of another protective cover 15;Fixed bolt 22 and second fixed rod 23 inner lateral wall are screw-connected;When working, reinforcing plate 21 can be reinforced and stabilized by the screw connection between fixed bolt 22 and second fixed rod 23, in turn, two protective covers 15 are reinforced, to avoid that protective cover 15 unfolds and appears gap when using because of external force;Closed protective cover 15 can be reinforced by reinforcing plate 21 by the setting of fixed bolt 22 and second fixed rod 23, protective cover 15 does not appear unfolding condition because of external force when closing, further strengthen the closing reinforcing effect of protective structure for direct current metering device.
[0026] As Figures 1 to 3As shown, the side wall of the protective cover 15 is provided with air holes 3; the air holes 3 are uniformly distributed on the side wall of the protective cover 15; during operation, the side wall of the protective cover 15 can be ventilated through the air holes 3, so as to avoid the accumulation of energy inside the protective cover 15, and facilitate the absorption of heat by the fireproof assembly; when the internal combustion occurs in the DC metering device body 1, the heat can be quickly discharged through the air holes 3, and the heat can be absorbed by the fireproof assembly, thereby further enhancing the heat dissipation and guiding effect of the protective structure for the DC metering device.
[0027] As shown in Figures 1 to 3 , the fireproof assembly comprises a heat conducting layer 4; the side wall of the heat conducting layer 4 is provided with a fireproof layer 41; during operation, the heat conducting layer 4 is made of graphite material to quickly guide and transfer heat, and the fireproof layer 41 is made of ceramic material to absorb heat; the heat guided by the air holes 3 can be guided and transferred through the heat conducting layer 4 made of graphite material, and the heat transferred by the heat conducting layer 4 can be absorbed through the fireproof layer 41 made of ceramic material, thereby reducing the maintenance threat caused by heat dissipation, and further enhancing the fireproof effect of the protective structure for the DC metering device.
[0028] As shown in Figures 1 to 3 , the end of the rotating rod 11 is fixedly connected with a control column 5; the control column 5 is made of copper; during operation, the heat transferred by the rotating rod 11 can be quickly guided out through the control column 5, so that the control column 5 maintains a relatively cool use temperature, thereby facilitating the twisting of the rotating rod 11; the heat can be quickly guided out through the control column 5 made of copper, thereby facilitating the rotation control of the rotating rod 11, and further enhancing the control effect of the protective structure for the DC metering device.
[0029] As shown in Figure 1 , the side wall of the protective cover 15 is provided with an observation window 6; the observation window 6 is made of transparent heat insulation material; during operation, the use state of the DC metering device body 1 can be observed through the observation window 6, and the situation can be more intuitively observed when the DC metering device body 1 is on fire; the use state of the DC metering device body 1 can be observed through the observation window 6, thereby further enhancing the observation effect of the protective structure for the DC metering device.
[0030] As shown in Figure 3 , the side wall of the control column 5 is provided with anti-skid blocks 7; the anti-skid blocks 7 are uniformly distributed on the side wall of the control column 5; during operation, the control column 5 is not easy to slip when rotating due to the uniform distribution of the anti-skid blocks 7 on the side wall of the control column 5; the control column 5 can be more stable when rotating through the setting of the anti-skid blocks 7, thereby further enhancing the protection effect of the protective structure for the DC metering device.
[0031] When working, the first bevel gear 12 can be rotated through the rotating rod 11, the second bevel gear 13 hinged on the side wall of the first bevel gear 12 can be used to open and close the protective cover 15 through the first fixed rod 14, the two protective covers 15 can reduce the blocking effect during rotation adjustment through the size setting of the two protective covers 15, the external force suffered by the direct current metering device body 1 can be blocked and protected through the protective cover 15, the heat in the direct current metering device body 1 can be reduced to escape and cause harm to the maintenance personnel through the fire-retardant assembly, the closed protective cover 15 can be reinforced through the reinforcing assembly, the reinforcing plate 21 can be reinforced and stabilized through the screw connection between the fixed bolt 22 and the second fixed rod 23, and then the two protective covers 15 are reinforced, so that the protective cover 15 is prevented from being opened and having a gap due to external force during use, the side wall of the protective cover 15 can be ventilated through the air vent 3, the energy self-ignited in the direct current metering device body 1 is prevented from accumulating in the protective cover 15 to accumulate energy, the heat can be absorbed by the fire-retardant assembly, the heat can be absorbed through the heat dissipation fins formed by the heat dissipation layer 4 made of graphite material, the heat can be absorbed through the fire-retardant layer 41 made of ceramic material, the heat transferred by the rotating rod 11 can be quickly led out through the control column 5, so that the control column 5 maintains a relatively cool use temperature, the rotating rod 11 is facilitated to be twisted, the use state of the direct current metering device body 1 can be observed through the observation window 6, the situation can be more intuitively observed when the direct current metering device body 1 is on fire, and the control column 5 is not easy to slip during rotation through the anti-skid blocks 7 evenly distributed on the side wall of the control column 5.
[0032] The basic principle, main features and advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A protective structure for a direct current metering device, comprising a direct current metering device body (1); characterized in that: The direct current metering device body (1) side wall rotation fit with rotating rod (11), the rotating rod (11) side wall solid connection has the first bevel gear (12), the first bevel gear (12) side wall articulates with the second bevel gear (13), the second bevel gear (13) and direct current metering device body (1) side wall is rotation fit, the second bevel gear (13) side wall solid connection has the first fixed rod (14), the first fixed rod (14) end solid connection has the protective cover (15), the protective cover (15) outer side wall solid connection has the reinforcing assembly, the protective cover (15) outer side wall solid connection has the fire -retardant subassembly.
2. The protection structure for a direct current metering device according to claim 1, characterized in that: The reinforcing assembly includes a first fixed seat (2), the first fixed seat (2) inner side wall rotation fit has the reinforcing plate (21), the reinforcing plate (21) middle screw connection has the fixed peg (22), another protective cover (15) outer side wall solid connection has the second fixed rod (23), the fixed peg (22) and second fixed rod (23) inner side wall are screw connection.
3. The protection structure for a DC metering device according to claim 1, characterized in that: The protective cover (15) side wall is set up and has the air hole (3), the air hole (3) is evenly distributed in protective cover (15) side wall.
4. The protection structure for a DC metering device according to claim 1, characterized in that: The fire -retardant subassembly includes a heat conduction layer (4), and the heat conduction layer (4) side wall is installed with fire -retardant layer (41).
5. The protection structure for a DC metering device according to claim 1, characterized in that: The rotating rod (11) end solid connection has control column (5), control column (5) uses copper as manufacturing material.
6. The protection structure for a DC metering device according to claim 1, characterized in that: The protective cover (15) side wall is installed with observation window (6), and the observation window (6) is made of transparent heat insulation material.
7. The protection structure for a DC metering device according to claim 5, characterized in that: The control column (5) side wall is installed with antiskid block (7), and the antiskid block (7) is evenly distributed in control column (5) side wall.