CN215647733U - Direct-current system direct-current multi-branch quick access box - Google Patents

Abstract

The utility model discloses a direct-current multi-branch quick access box of a direct-current system, and relates to the technical field of access boxes. The direct current air switch device comprises an access box body, wherein a circuit breaker, two testers, two wiring terminals, a direct current air switch device and a lightning protection device are arranged on one side of the circuit breaker, the two testers are arranged on one side of the circuit breaker, the two wiring terminals are arranged on one side of the circuit breaker, the direct current air switch device is arranged on one side of the testers, the lightning protection device is arranged on one side of the direct current air switch device, and a cover plate is clamped on one side of the access box body. According to the utility model, the wiring terminal is arranged on one side of the access box body, so that the operation and the work are convenient and safe, the occurrence of direct current power loss and short circuit is reduced, the arrangement of the first channel realizes that the driving mechanism drives the L-shaped plate to slide in and out of the L-shaped clamping groove, so that the clamping and the releasing of the clamping of the cover plate are realized, the opening and closing processes of the cover plate are more convenient and faster, and meanwhile, the safety of the access box body is improved when the cover plate is closed.

Description

Direct-current system direct-current multi-branch quick access box

Technical Field

The utility model belongs to the technical field of access boxes, and particularly relates to a direct-current multi-branch quick access box of a direct-current system.

Background

When the electric power substation is subjected to direct current transformation, the direct current multi-branch quick access box of the direct current system utilizes the temporary direct current transition screen cabinet to pour out direct current loads.

The original temporary direct current transition screen is simple and crude and incomplete in function, if an alarm signal is not generated when grounding or voltage is abnormal in direct current transformation work, the number of output wiring terminals is small, multiple outgoing line loads are connected onto one output wiring terminal in a pressing mode, operation and work are inconvenient and unsafe, direct current power loss and short circuit are easily caused, a cover plate of an existing access box is arranged on one side of the access box through a hinge, the connection mode of the hinge is unsafe, and components in the access box are easily damaged by lawbreakers and damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a direct-current multi-branch quick access box of a direct-current system, which solves the technical problem that no alarm signal exists when the existing access box is grounded or has abnormal voltage.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

a direct-current system direct-current multi-branch quick access box comprises an access box body, wherein one side of the access box body is provided with a circuit breaker, two testers positioned on one side of the circuit breaker, two wiring terminals positioned on one side of the circuit breaker, a direct-current air opening device positioned on one side of the testers and a lightning protection device positioned on one side of the direct-current air opening device, and one side of the access box body is clamped with a cover plate;

l-shaped clamping grooves are symmetrically formed in one side of the access box body, a first channel is formed in one side of the cover plate, an L-shaped plate is elastically and slidably matched in the first channel and matched with the L-shaped clamping grooves, and a driving mechanism is arranged between the two L-shaped plates.

Optionally, a handle, a wire harness unit located at one side of the handle, and a grounding screw located at one side of the wire harness unit are installed at one side of the access box body.

Optionally, the drive mechanism comprises: install the telescopic link in first channel, the connecting plate has been installed to the tip of telescopic link, and first fixed block has all been installed to two first sides of connecting plate, and first dead lever has been installed to one side of first fixed block, and first dead lever one end normal running fit has the rotor plate, and the U-shaped board has been installed to the second side of connecting plate.

Optionally, a second fixing block is installed on one side of the L-shaped plate, and a second fixing rod rotatably matched with the rotating plate is installed on one side of the second fixing block.

Optionally, a guide rod slidably engaged with the L-shaped plate is installed inside the second channel, and a first spring is installed between the L-shaped plate and the side wall of the second channel.

Optionally, fixed blocks are symmetrically arranged on one side of the access box body, a connecting column is arranged on one side of the cover plate, and a fixed rod in running fit with the connecting column is arranged between the two fixed blocks.

The embodiment of the utility model has the following beneficial effects:

according to the embodiment of the utility model, the wiring terminal is arranged on one side of the access box body, so that the operation and the work are convenient and safe, the occurrence of direct current power loss and short circuit is reduced, the arrangement of the first channel realizes that the driving mechanism drives the L-shaped plate to slide in and out of the L-shaped clamping groove, the clamping and the releasing of the clamping of the cover plate are realized, the opening and closing processes of the cover plate are more convenient, and meanwhile, the safety of the access box body is improved when the cover plate is closed.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic diagram of a cover plate structure according to an embodiment of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of the structure of FIG. 2 at B;

fig. 5 is a schematic structural view of a connection terminal according to an embodiment of the utility model;

fig. 6 is a schematic structural diagram at C in fig. 5.

Wherein the figures include the following reference numerals:

the lightning protection device comprises an access box body 1, a wiring terminal 101, a tester 102, a circuit breaker 103, a handle 104, a wire harness 105, a direct current air switch device 106, a lightning protection device 107, a grounding screw 108, a fixed block 109, a fixed rod 110, an L-shaped clamping groove 111, a cover plate 2, a first channel 201, a fixed cylinder 202, a sliding rod 203, a second spring 204, a connecting plate 205, a U-shaped plate 206, a first fixed block 207, a first fixed rod 208, a rotating plate 209, a second channel 210, an L-shaped plate 211, a guide rod 212, a first spring 213, a second fixed block 214, a second fixed rod 215 and a connecting column 216.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses.

To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the utility model have been omitted.

Referring to fig. 1-6, in the present embodiment, a dc multi-branch fast access box of a dc system is provided, which includes: the lightning protection device comprises an access box body 1, wherein one side of the access box body 1 is provided with a circuit breaker 103, two testers 102 positioned on one side of the circuit breaker 103, two wiring terminals 101 positioned on one side of the circuit breaker 103, a direct current air switch device 106 positioned on one side of the testers 102 and a lightning protection device 107 positioned on one side of the direct current air switch device 106, and a cover plate 2 is clamped on one side of the access box body 1;

l-shaped clamping grooves 111 are symmetrically formed in one side of the access box body 1, a first channel 201 is formed in one side of the cover plate 2, an L-shaped plate 211 is elastically and slidably matched in the first channel 201, the L-shaped plate 211 is matched with the L-shaped clamping grooves 111, and a driving mechanism is arranged between the two L-shaped plates 211.

When a direct-current system direct-current multi-branch quick access box needs to be used, firstly, the wiring terminal 101, the tester 102, the circuit breaker 103, the direct-current air opening device 106 and the lightning protector 107 are all installed on one side of the access box body 1, then the driving mechanism slides, the driving mechanism slides in the first channel 201, one end of the driving mechanism drives the L-shaped plate 211 to slide in the second channel 210, then the cover plate 2 is rotated, the cover plate 2 is rotated to one side of the access box body 1, the L-shaped plate 211 slides into the L-shaped clamping groove 111, then the driving mechanism is loosened, the L-shaped plate 211 slides into the L-shaped clamping groove 111 under the elastic action, then the cover plate 2 is clamped on one side of the access box body 1, and then the direct-current system direct-current multi-branch quick access box can be used.

Install binding post 101 through the one side at access case body 1, operation and work are got up both conveniently and safely, the condition that has reduced direct current and has lost electricity and short circuit takes place, the setting of first channel 201, realized that actuating mechanism drives L shaped plate 211 and has slided in L shape draw-in groove 111, the roll-off, in order to realize carrying out the joint to apron 2, remove the joint, make to opening of apron 2, the process of closing is more convenient, the security that has also improved access case body 1 when apron 2 is closed simultaneously.

Referring to fig. 1, a handle 104, a wire harness 105 located at one side of the handle 104, and a grounding screw 108 located at one side of the wire harness 105 are installed at one side of the access box body 1 of the present embodiment, so that the redundant wires can be conveniently arranged through the wire harness 105.

Referring to fig. 4, the driving mechanism of the present embodiment includes: install the telescopic link in first channel 201, the connecting plate 205 has been installed to the tip of telescopic link, and the telescopic link includes: a fixed cylinder 202 arranged in the first slot 201, a sliding rod 203 is slidably fitted at one end of the fixed cylinder 202, the sliding rod 203 is arranged at one side of a connecting plate 205, a second spring 204 is arranged between the connecting plate 205 and the side wall of the first slot 201, first fixed blocks 207 are arranged at two first side surfaces of the connecting plate 205, a first fixed rod 208 is arranged at one side of the first fixed block 207, a rotating plate 209 is rotatably fitted at one end of the first fixed rod 208, a U-shaped plate 206 is arranged at the second side surface of the connecting plate 205, corresponding locks are fitted in the U-shaped plate 206 and are the prior art, which is not described herein, a second fixed block 214 is arranged at one side of the L-shaped plate 211, a second fixed rod 215 rotatably fitted with the rotating plate 209 is arranged at one side of the second fixed block 214, when the cover plate 2 needs to be clamped at one side of the access box body 1, the U-shaped plate 206 is firstly slid, the sliding rod 203 is driven by the connecting plate 205 to slide in the fixed cylinder 202, and compress second spring 204, connecting plate 205 drives first dead lever 208 through first fixed block 207 and removes, first dead lever 208 drives second dead lever 215 through rotor plate 209 and removes, second dead lever 215 drives L shaped plate 211 through second fixed block 214 and slides in the week side of guide bar 212 to tensile first spring 213, then rotate apron 2, when apron 2 laminating is in access case body 1 one side, loosen U shaped plate 206, L shaped plate 211 slides in L shape draw-in groove 111 under the effect of first spring 213, and then connect apron 2 joint in the one side of accessing case body 1.

Referring to fig. 6, the guide rod 212 slidably engaged with the L-shaped plate 211 is installed inside the second slot 210 of the present embodiment to guide the sliding direction of the L-shaped plate 211, so as to improve the stability of the L-shaped plate 211 during sliding, and the first spring 213 is installed between the L-shaped plate 211 and the side wall of the second slot 210, so as to facilitate the L-shaped plate 211 to be reset in time when not in use.

Referring to fig. 4, the access box body 1 of the present embodiment is symmetrically provided with fixing blocks 109 at one side, the cover plate 2 is provided with a connecting column 216 at one side, and the fixing rod 110 rotatably engaged with the connecting column 216 is provided between the two fixing blocks 109, so that the cover plate 2 can rotate around the fixing rod 110 through the connecting column 216.

Example 1: in one aspect of the embodiment, in order to reduce the tilting of the rotating plate 209 during rotation as much as possible, the present embodiment provides two alternative embodiments.

In embodiment 1.1, in this embodiment, the first fixing rod 208 rotatably engaged with the first end of the rotating plate 209 is installed on one side of the first fixing block 207, so that the occurrence of tilting of the rotating plate 209 during rotation is reduced, and the stability of the first fixing block 207 during rotation is further improved.

Embodiment 1.2, in this embodiment, one side of the second fixed block 214 is provided with a second fixed rod 215 rotatably engaged with the second end of the rotating plate 209, so as to reduce the occurrence of shaking of the rotating plate 209 during rotation.

On the other hand, the system is characterized in that: two direct current inputs are adopted, one is common, and the other is standby. The input switch 2X 100A breaker is controlled, a multi-cabinet parallel design is adopted, the configuration of an output branch is flexible, 22 branches are output, (6 paths of 20A, 6 paths of 16A and 10 paths of 10A), 1 set of multifunctional measuring instrument is configured, 1 path of insulation monitoring device is configured, and 1 path of lightning protection device is configured;

the use conditions are as follows: the air conditioner is used indoors, ventilation is good, no conductive particles or explosion dangerous media exist in a running place, no corrosive metal or gas or steam damaging insulation exists, the temperature of a use environment is not lower than-5 ℃ and not higher than 45 ℃, the maximum relative humidity of the use environment is not more than 90% RH (when the temperature is 25 +/-5 ℃), and no condensation phenomenon exists;

equipment component, direct current feed: and connecting the direct current output power supply into the direct current cabinet and distributing the direct current output power supply to each branch circuit for output. Each direct current output branch adopts a direct current breaker with a corresponding specification, so that each branch can be reliably disconnected when a direct current side fails;

a monitoring instrument: a multifunctional measuring instrument is adopted for system monitoring, the working states of input voltage, current, consumed capacity, electric quantity, temperature in a cabinet, running time and the like in a system loop are monitored, and the working states are displayed on a screen, so that a user can intuitively and conveniently know the working states of the system (namely, the long pressing of the capacity, the electric quantity and the time in a Chinese and English main interface is reset and reset (mAh, Wh, 00:00:00), the switching of different display modes is clicked, the capacity reset and reset (mA) is double-click, the electric quantity reset and reset (Wh) is triple-click, and the timing reset and reset (00:00:00) is four-click);

an insulation monitor: an independent insulation monitor is configured according to needs, and an alarm sound is generated when the direct current ground insulation resistance is lower than 25K omega;

lightning protection protector: the direct-current lightning protection device is installed on an input circuit of the direct-current cabinet, so that the fleeing instantaneous high voltage can be effectively limited within a voltage range which can be borne by equipment or a system, strong lightning current is discharged into the ground, the protected equipment or the system is protected from impact [ the lightning protection device is opened and closed in the air, the lightning protection device is not allowed to be disconnected in a use state, an indication window of the lightning protection device (SPD) is green in a normal state, and when the indication window is changed from green to red, the lightning protection device is failed or has a fault, and like products are required to be replaced ];

note, the installation requirement: when the direct-current system direct-current multi-branch quick access box is transported, two persons are required to carry the direct-current system direct-current multi-branch quick access box, and when the direct-current system direct-current multi-branch quick access box is operated in a narrow space, the influence of the environment is noticed, so that other equipment and other persons are not damaged, and other objects are not damaged;

safety protection: the direct-current system direct-current multi-branch quick access box is harmful to human life when working under the condition of DC 220V. The method comprises the following steps of strictly prohibiting touching electrified parts such as exposed wiring screws under the electrified condition, correctly distinguishing positive polarity access from negative polarity access, having good grounding for a cabinet, protecting normal operation and personal safety of a system, carefully checking whether a breaker is in a disconnected state, whether the appearance is damaged or not and the like before use, having each protection measure done or not, wiring and operating by technical personnel, checking whether a lightning arrester is in a closed position before use every time, and having good lightning arrester state (the state window is observed, green is normal, and red is fault);

and (3) storage: the cabinets are stored in a dry and ventilated environment during storage, are strictly forbidden to be stacked in the open air, are placed in a warehouse without corrosive and explosive gases, the cabinets and accessories thereof are subjected to aging tests, various working states are set, and the cabinets can be used after being opened in principle, but unforeseeable factors cause faults in the transportation process, so that the cabinets need to be carefully checked before being put into operation formally.

The above embodiments may be combined with each other.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Claims (6)

1. A direct current system direct current multi-branch quick access box is characterized by comprising: the device comprises an access box body (1), wherein a circuit breaker (103), two testers (102) positioned on one side of the circuit breaker (103), two wiring terminals (101) positioned on one side of the circuit breaker (103), a direct current air opening device (106) positioned on one side of the testers (102) and a lightning protection device (107) positioned on one side of the direct current air opening device (106) are arranged on one side of the access box body (1), and a cover plate (2) is clamped on one side of the access box body (1);

l-shaped clamping grooves (111) are symmetrically formed in one side of the access box body (1), a first channel (201) is formed in one side of the cover plate (2), an L-shaped plate (211) is elastically and slidably matched in the first channel (201), the L-shaped plate (211) is matched with the L-shaped clamping grooves (111), and a driving mechanism is arranged between the two L-shaped plates (211).

2. A dc system dc multiple branch quick access box according to claim 1, characterized in that one side of the access box body (1) is provided with a handle (104), a wire harness (105) on one side of the handle (104), and a grounding screw (108) on one side of the wire harness (105).

3. The dc multi-branch quick access box of claim 1, wherein the driving mechanism comprises: install the telescopic link in first channel (201), connecting plate (205) have been installed to the tip of telescopic link, and first fixed block (207) have all been installed to two first sides of connecting plate (205), and first dead lever (208) have been installed to one side of first fixed block (207), and first dead lever (208) one end normal running fit has rotor plate (209), and U-shaped board (206) have been installed to the second side of connecting plate (205).

4. A dc multiple branch access box of dc system as claimed in claim 3, wherein a second fixed block (214) is installed at one side of the L-shaped plate (211), and a second fixed bar (215) rotatably engaged with the rotating plate (209) is installed at one side of the second fixed block (214).

5. A dc multiple branch quick access box of dc system as claimed in claim 1, wherein the second channel (210) is internally provided with a guide bar (212) slidably engaged with the L-shaped plate (211), and a first spring (213) is provided between the L-shaped plate (211) and the side wall of the second channel (210).

6. The direct current system direct current multi-branch quick access box of claim 1, characterized in that the access box body (1) is symmetrically provided with fixing blocks (109) at one side, the cover plate (2) is provided with connecting columns (216) at one side, and fixing rods (110) rotatably matched with the connecting columns (216) are arranged between the two fixing blocks (109).

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