A direct current system recording device

By designing a protective shell and a snap-fit ​​assembly with arc-shaped springs on the DC system waveform recording device, the problem of damage caused by exposed interfaces is solved, achieving interface protection and convenient maintenance.

CN224317718UActive Publication Date: 2026-06-02NANJING GUOTIE ELECTRIC

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING GUOTIE ELECTRIC
Filing Date
2025-06-26
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The interfaces of traditional DC system waveform recording devices are exposed, making them susceptible to damage from impacts, which affects monitoring results and causes economic losses.

Method used

A protective shell mechanism was designed to shield and protect the interface through the cooperation of arc-shaped springs and buckle components. The arc-shaped springs and docking blocks can be replaced to ensure the fixing effect.

Benefits of technology

It effectively protects the interface from damage, ensures the normal use and economic benefits of the equipment, and facilitates the replacement and maintenance of parts.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a DC system waveform recording device, relating to the field of DC system waveform recording technology. The utility model includes a DC system waveform recording device with an interface on its right side, and further includes: a protective mechanism disposed outside the right-side interface of the DC system waveform recording device, used to shield and protect the interface; and a mounting plate inserted into the back of the DC system waveform recording device. This utility model uses a protective shell, specifically, by pushing the protective shell upwards so that it inserts into a docking plate and a docking block, and first contacts an arc-shaped spring, simultaneously squeezing the arc-shaped spring to allow the docking plate to pass smoothly through it. When the protective shell contacts the surface of the DC system waveform recording device, the arc-shaped spring returns to its original position through its own elasticity, fixing the protective shell in place. Thus, the protective shell shields and protects the interface from damage upon impact.
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Description

Technical Field

[0001] This utility model belongs to the field of DC system waveform recording technology, and in particular relates to a DC system waveform recording device. Background Technology

[0002] DC system waveform recording devices are specialized equipment for fault monitoring and data recording in power DC systems. They are designed to collect system operating status in real time and automatically trigger waveform recording when a fault occurs, providing key data support for fault analysis.

[0003] Traditional DC system waveform recording devices are typically designed for easy portability, making them convenient for operators to move and use. However, these portable DC system waveform recording devices usually have numerous interfaces on the outside of the enclosure for connecting wires. These interfaces are often exposed, making them susceptible to damage from impacts. In severe cases, this can even cause damage to the interfaces, affecting the monitoring of the DC system and resulting in economic losses. Utility Model Content

[0004] The purpose of this invention is to provide a DC system waveform recording device. By setting a protective shell, specifically by pushing the protective shell upwards, the protective shell is inserted into the docking plate and docking block, and first contacts the arc-shaped spring. At the same time, the arc-shaped spring is squeezed, allowing the docking plate to pass smoothly through the arc-shaped spring. When the protective shell contacts the surface of the DC system waveform recording device, the arc-shaped spring will reset by its own elasticity, restricting and fixing the protective shell. The protective shell will shield and protect the interface. When it is hit, it can effectively protect the interface from damage. This solves the problem that the interface of traditional DC system waveform recording devices is usually exposed, making the interface easy to break and even causing serious damage to the interface.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a DC system waveform recording device, including a DC system waveform recording equipment, wherein an interface is provided on the right side of the DC system waveform recording equipment, and further comprising:

[0007] A protective mechanism, wherein the protective mechanism is disposed on the outside of the right-side interface of the DC system waveform recording equipment, the protective mechanism being used to shield and protect the interface; and

[0008] Mounting plate, which is plugged into the back of DC system waveform recorder, and has two cooling fans mounted on it;

[0009] The interface is used for external wiring harnesses, and the cooling fan is used to dissipate heat when the DC system recording equipment is in use.

[0010] Furthermore, the protective mechanism includes a protective housing disposed on the right side of the DC system waveform recording equipment, the protective housing being flip-up; and

[0011] The snap-fit ​​assembly consists of two sets, one on the front and one on the back of the protective shell, which are used to snap and fix the protective shell in place.

[0012] Furthermore, a connecting block is fixedly connected to the side of the protective shell away from the DC system recording equipment, a rotating rod is rotatably connected inside the connecting block, hinge blocks are fixedly connected to the front and back of the rotating rod, and a protruding plate is fixedly connected to the top of the protective shell;

[0013] The hinge block is fixedly connected to the surface of the DC system recording device on the side facing the DC system recording device, and the convex plate makes it convenient for the user to pull the protective shell.

[0014] Furthermore, the buckle assembly includes a mating plate fixedly connected to the outside of the protective shell, the mating plate having a slot inside, a mating block being inserted into the slot, and an arc-shaped spring piece fixedly connected to the top and bottom of the mating block;

[0015] The side of the arc-shaped spring facing the inner wall of the slot is the snap-fit ​​surface, and the other end of the arc-shaped spring is suspended.

[0016] Furthermore, a square plug and a screw are inserted inside the docking block. The side of the square plug facing the DC system waveform recorder is fixedly connected to the surface of the DC system waveform recorder. The screw is threadedly connected to the DC system waveform recorder. The side of the docking block facing the DC system waveform recorder is in contact with the DC system waveform recorder.

[0017] Furthermore, each of the four corners of the mounting plate is fitted with a threaded knob, which is threadedly connected to the DC system waveform recording equipment. A limit shaft is fixedly connected to the outside of the threaded knob, and a connecting band is sleeved on the limit shaft.

[0018] Furthermore, the side of the connecting belt away from the limiting shaft is fixedly connected to the mounting plate, and the limiting shaft is rotatably connected to the connecting belt.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model features a protective shell. Specifically, the protective shell is pushed upwards, allowing it to connect to the docking block via a docking plate. It first contacts the arc-shaped spring, which then presses against the spring, allowing the docking plate to pass smoothly through it. When the protective shell contacts the surface of the DC system recording equipment, the arc-shaped spring returns to its original position through its own elasticity, fixing the protective shell in place. This protects the interface from damage when it is impacted.

[0021] 2. This utility model uses a connecting block. Specifically, the screws are removed, and then the connecting block can be removed and replaced with a new connecting block. The new connecting block is inserted into the square insert to position the connecting block. Then the screws are installed to replace the connecting block. At this time, the arc-shaped spring is also replaced, thus ensuring the fixing effect of the protective shell.

[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the back structure of the DC system waveform recording device of this utility model;

[0026] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0027] Figure 4 This is a schematic diagram of the side interface structure of the DC system waveform recording device of this utility model;

[0028] Figure 5 This is a schematic diagram of the overall structure of the mounting plate of this utility model.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. DC system waveform recording equipment; 11. Interface; 2. Protective mechanism; 21. Protective shell; 211. Connecting block; 212. Hinge block; 213. Protruding plate; 214. Rotating rod; 22. Buckle assembly; 221. Connecting plate; 222. Slot; 223. Connecting block; 224. Arc-shaped spring; 225. Square insert; 226. Screw; 3. Mounting plate; 31. Cooling fan; 32. Threaded knob; 33. Limiting shaft; 34. Connecting belt. Detailed Implementation

[0031] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-5 As shown, this utility model is a DC system waveform recording device, including a DC system waveform recording equipment 1, an interface 11 provided on the right side of the DC system waveform recording equipment 1, and further including:

[0033] Protective mechanism 2 is located outside the right interface 11 of the DC system recording device 1, and is used to shield and protect the interface 11; and

[0034] Mounting plate 3 is plugged into the back of DC system waveform recording device 1, and two cooling fans 31 are installed on mounting plate 3;

[0035] Interface 11 is used for external wiring harness, and cooling fan 31 is used to dissipate heat when the DC system recording device 1 is in use.

[0036] The protective mechanism 2 includes a protective housing 21 located on the right side of the DC system recording device 1, the protective housing 21 being flip-up; and

[0037] The snap-fit ​​assembly 22 has two sets, which are respectively set on the front and back of the protective shell 21. The snap-fit ​​assembly 22 is used to snap and fix the protective shell 21.

[0038] A connecting block 211 is fixedly connected to the side of the protective shell 21 away from the DC system waveform recording device 1. A rotating rod 214 is rotatably connected inside the connecting block 211. Hinges 212 are fixedly connected to the front and back of the rotating rod 214. A protruding plate 213 is fixedly connected to the top of the protective shell 21. When the protective shell 21 is pushed upward, it is inserted into the docking block 223 through the docking plate 221. It will first contact the arc-shaped spring 224 and squeeze the arc-shaped spring 224, so that the docking plate 221 can pass smoothly through the arc-shaped spring 224. When the protective shell 21 contacts the surface of the DC system waveform recording device 1, the arc-shaped spring 224 will reset by its own elasticity and fix the protective shell 21. The protective shell 21 will shield and protect the interface 11. When it is hit by a collision, it can effectively protect the interface 11 from damage.

[0039] The hinge block 212 is fixedly connected to the surface of the DC system recording device 1 on the side facing the DC system recording device 1, and the protruding plate 213 makes it convenient for the user to pull the protective shell 21.

[0040] The buckle assembly 22 includes a docking plate 221 fixedly connected to the outside of the protective shell 21. The docking plate 221 has a slot 222 inside, and a docking block 223 is inserted into the slot 222. The top and bottom of the docking block 223 are fixedly connected to arc-shaped spring pieces 224.

[0041] Among them, the side of the arc-shaped spring piece 224 facing the inner wall of the slot 222 is the snap-fit ​​surface, and the other end of the arc-shaped spring piece 224 is suspended.

[0042] The mating block 223 has a square insert 225 and a screw 226 inserted inside. The side of the square insert 225 facing the DC system waveform recorder 1 is fixedly connected to the surface of the DC system waveform recorder 1. The screw 226 is threadedly connected to the DC system waveform recorder 1. The side of the mating block 223 facing the DC system waveform recorder 1 is in contact with the DC system waveform recorder 1. The screw 226 is removed, and then the mating block 223 can be removed. A new mating block 223 is then replaced by inserting it into the square insert 225 to position the mating block 223. Then the screw 226 is installed to replace the mating block 223. At this time, the arc-shaped spring 224 is also replaced, which ensures the fixing effect of the protective shell 21.

[0043] Threaded knobs 32 are inserted into each of the four corners of the mounting plate 3. The threaded knobs 32 are threadedly connected to the DC system waveform recording device 1. A limit shaft 33 is fixedly connected to the outside of the threaded knobs 32, and a connecting band 34 is sleeved on the limit shaft 33.

[0044] The side of the connecting belt 34 away from the limiting shaft 33 is fixedly connected to the mounting plate 3, and the limiting shaft 33 is rotatably connected to the connecting belt 34.

[0045] One specific application of this embodiment is:

[0046] When the DC system waveform recorder 1 needs to be used, first place the DC system waveform recorder 1 on the table, then pull the protruding plate 213 to drive the protective shell 21 to flip to the right. The connecting block 211 will rotate on the rotating rod 214, and the protective shell 21 will drive the docking plate 221 to push the arc-shaped spring 224. The arc-shaped spring 224 is made of metal. At this time, the arc-shaped spring 224 will be squeezed and contracted, so that the docking plate 221 can be smoothly separated from the docking block 223, and the protective shell 21 can be opened. When the protective shell 21 is opened, the interface 11 is exposed, and the staff can connect the wires to monitor the DC system. The model of the DC system waveform recorder 1 is PDR-3000A portable DC waveform recorder. During the monitoring process, the cooling fan 31 is turned on to dissipate heat from the inside of the DC system waveform recorder 1.

[0047] When the DC system waveform recording device 1 needs to be moved after use, first unplug the connected wiring harness, then push the protective shell 21 upward so that the protective shell 21 is inserted into the docking block 223 through the docking plate 221. The docking plate 221 will first contact the arc-shaped spring 224 and push and squeeze the arc-shaped spring 224 so that the docking plate 221 can pass smoothly through the arc-shaped spring 224. When the protective shell 21 contacts the surface of the DC system waveform recording device 1, the arc-shaped spring 224 will reset by its own elasticity, thereby engaging with the docking plate 221 to fix the protective shell 21. The protective shell 21 will then shield and protect the interface 11, effectively protecting the interface 11 from damage when it is hit.

[0048] When the curved spring 224 becomes fatigued, the screw 226 can be removed, and then the mating block 223 can be removed. Then, a new mating block 223 can be replaced. The new mating block 223 is inserted into the square plug 225 to position the mating block 223. Then, the screw 226 is inserted into the mating block 223 and threadedly connected to the DC system waveform recording device 1 to complete the replacement.

[0049] When the cooling fan 31 is damaged, the threaded knob 32 can be removed by rotating it counterclockwise. Since the threaded knob 32 is restricted to the connecting belt 34 by the limiting shaft 33, after the threaded knob 32 is removed, it will be connected to the mounting plate 3 to avoid loss. Furthermore, the connection between the limiting shaft 33 and the connecting belt 34 is a rotatable connection, so it will not affect the rotation of the threaded knob 32. After removing multiple threaded knobs 32, the mounting plate 3 can be pulled out, and then the cooling fan 31 can be repaired or replaced.

[0050] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A DC system waveform recording device, comprising a DC system waveform recording equipment (1), wherein an interface (11) is provided on the right side of the DC system waveform recording equipment (1), characterized in that, Also includes: A protective mechanism (2) is provided on the outside of the right-side interface (11) of the DC system recording device (1), and the protective mechanism (2) is used to shield and protect the interface (11); and Mounting plate (3), which is inserted into the back of DC system waveform recording device (1), and two cooling fans (31) are mounted on the mounting plate (3); The interface (11) is used for external wiring harnesses, and the cooling fan (31) is used to dissipate heat when the DC system recording device (1) is in use.

2. The DC system waveform recording device according to claim 1, characterized in that, The protective mechanism (2) includes a protective shell (21) disposed on the right side of the DC system recording device (1), the protective shell (21) being flip-up; and The snap-fit ​​assembly (22) is provided in two sets, which are respectively provided on the front and back of the protective shell (21). The snap-fit ​​assembly (22) is used to snap and fix the protective shell (21).

3. The DC system waveform recording device according to claim 2, characterized in that, A connecting block (211) is fixedly connected to the side of the protective shell (21) away from the DC system recording device (1). A rotating rod (214) is rotatably connected inside the connecting block (211). A hinge block (212) is fixedly connected to both the front and back of the rotating rod (214). A protruding plate (213) is fixedly connected to the top of the protective shell (21). The hinge block (212) is fixedly connected to the surface of the DC system recording device (1) on the side facing the DC system recording device (1), and the protruding plate (213) facilitates the user to pull the protective shell (21).

4. The DC system waveform recording device according to claim 3, characterized in that, The buckle assembly (22) includes a docking plate (221) fixedly connected to the outside of the protective shell (21). The docking plate (221) has a slot (222) inside. A docking block (223) is inserted into the slot (222). An arc-shaped spring piece (224) is fixedly connected to the top and bottom of the docking block (223). The side of the arc-shaped spring piece (224) facing the inner wall of the slot (222) is the snap-fit ​​surface, and the other end of the arc-shaped spring piece (224) is suspended.

5. A DC system waveform recording device according to claim 4, characterized in that, The docking block (223) has a square plug (225) and a screw (226) inserted inside. The square plug (225) is fixedly connected to the surface of the DC system waveform recording device (1) on the side facing the DC system waveform recording device (1). The screw (226) is threadedly connected to the DC system waveform recording device (1). The docking block (223) is in contact with the DC system waveform recording device (1) on the side facing the DC system waveform recording device (1).

6. A DC system waveform recording device according to claim 3, characterized in that, The mounting plate (3) has threaded knobs (32) inserted at each of its four corners. The threaded knobs (32) are threadedly connected to the DC system waveform recording device (1). A limit shaft (33) is fixedly connected to the outside of the threaded knobs (32). A connecting band (34) is sleeved on the limit shaft (33).

7. A DC system waveform recording device according to claim 6, characterized in that, The side of the connecting belt (34) away from the limiting shaft (33) is fixedly connected to the mounting plate (3), and the limiting shaft (33) is rotatably connected to the connecting belt (34).