Terminal device for detecting insulation condition of direct current system

Abstract

The utility model relates to the technical field of direct current system insulation detection devices, and discloses a terminal device for detecting the insulation condition of a direct current system, which comprises an outer frame, a built-in terminal platform is arranged at the bottom of the outer frame, damping bases are distributed on the periphery of the bottom end of the built-in terminal platform, and the built-in terminal platform comprises a rack. The periphery of the top face of the rack is attached to the periphery of the bottom end of the outer frame. According to the utility model, a double-layer protection structure is formed on the premise that the normal use of an instrument is not influenced in a manner that the detector terminal is fixed by the internal rack and the shell is telescopically combined; when the terminal device body is bumped or impacted, the terminal device can play a good role in internal and external protection and effective anti-seismic buffering performance of the inner wall, so that the influence on instruments in the terminal device is reduced, the safety protection performance of the whole terminal device is further improved, and the terminal device is more beneficial to being frequently carried and used in insulation detection operation of a direct current system.

Description

Technical Field

[0001] The utility model relates to the technical field of DC system insulation detection devices, in particular to a terminal device for detecting the insulation status of a DC system. Background Art

[0002] As an important part of the power system, the DC system is used to transmit high-power long-distance electric energy. Therefore, its safety and reliability requirements are extremely high. In the DC system, insulation failure is one of the main causes of system failure or accidents. In order to avoid this situation, it is necessary to monitor the insulation of the DC system in real time and deal with it in time when problems occur. Therefore, the insulation monitoring device of the DC system is very important, and the lug connector in the DC system is one of the parts that are prone to insulation failure. Therefore, it is necessary to install a corresponding insulation monitoring device to achieve real-time monitoring of the DC lug connector. The DC lug connector insulation detection device is usually composed of an insulation detector, a data acquisition instrument, a communication module, etc. Among them, the insulation detector is one of the more commonly used terminal devices in insulation detection operations.

[0003] Prior art, such as the patent with publication number CN212658785U, discloses an insulation detector, including a chassis, a control panel is provided on the front side of the chassis, a circle of bosses protruding outward relative to the control panel is provided on the chassis on the periphery of the control panel, a protective cover is rotatably connected to the top of the front side of the chassis through a connecting structure, the protective cover is adapted to the shape of the front side of the chassis, an observation port is provided in the middle of the protective cover, the observation port is provided with a transparent glass plate or a transparent plastic plate, a circle of flexible sealing gaskets is provided at the position of the inner side of the protective cover relative to the boss, a buckle is provided in the middle of the lower edge of the protective cover, a slot matching the buckle is provided in the middle of the lower end of the front side of the chassis, and four shock-absorbing legs are arranged in a rectangular shape at the four corners of the bottom surface of the chassis. The utility model has a simple structure and a reasonable design. The provision of the protective cover makes the insulation detector have a good waterproof and dustproof effect, and the shock-absorbing legs can effectively prevent the external vibration from damaging the internal components of the insulation monitor during transportation and handling.

[0004] The above prior art has obvious beneficial effects, but still has shortcomings:

[0005] In the above-mentioned prior art, the detector terminal is mounted inside through a box-type design in conjunction with shock-absorbing legs provided at the bottom. Although it can play a certain role in shock absorption and waterproof protection, the overall box-type design has defects. There are still heat dissipation and exhaust positions on both sides of the box structure. Although it can play a heat dissipation effect, when this terminal device is used outdoors, water still enters the exhaust port, and the entire device cannot be effectively waterproofed. In addition, the overall structure is not sufficiently protective and cannot effectively reduce bumps and collisions. For this reason, a terminal device for detecting the insulation condition of a DC system is proposed. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model provides a terminal device for detecting the insulation condition of a DC system. A double-layer protection structure is formed by connecting a stand and a casing to provide protection and safety for the internal detector terminal. The windows at both ends of the casing and the arranged arc-shaped louvers are used to enhance the overall waterproof protection of the entire device in the external environment.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a terminal device for detecting the insulation condition of a DC system, comprising an outer frame, a built-in terminal platform is arranged at the bottom of the outer frame, and shock-absorbing bases are distributed around the bottom end of the built-in terminal platform, the built-in terminal platform comprises a stand, and the top surface of the stand is in contact with the bottom end of the outer frame, a detector terminal is fixedly connected to the top surface of the stand, and a control panel is arranged on one side of the detector terminal, rubber blocks are distributed at both ends of the detector terminal, and telescopic rods are distributed around the detector terminal, the top of the telescopic rod is connected to a rod frame, one side of the rod frame is fixedly connected to the outer frame, and a buckle is arranged on one side of the rod frame.

[0008] Preferably, the outer frame forms a telescopic structure with the platform through a rod frame and a telescopic rod, and the rod frame is buckled with one side of the telescopic rod through a buckle.

[0009] Preferably, the rubber blocks are symmetrically distributed along both ends of the detector terminal, and the bottom end of the detector terminal is integrally fixedly connected to the stand.

[0010] Preferably, the outer frame includes an outer shell, the inner walls of which are fixedly connected with rod racks, and the top of the outer shell is fixedly connected with a handle, windows are provided at both ends of the outer shell, and louvers are connected inside the windows, a visual window is provided at the front end of the outer shell, and a soft rubber frame is fitted around the bottom end of the outer shell, and buckle plates are provided at both ends of the soft rubber frame.

[0011] Preferably, the viewing windows are symmetrically opened along two ends of the shell, and the louvers are evenly arranged around the inner wall of the viewing window.

[0012] Preferably, the shock-absorbing base includes a chassis, and the top surface of the chassis is fixedly connected to a support rod, the top end of the support rod is connected to a damping rod, and spring frames are distributed around the damping rod, and the top surface of the spring frame is fixedly connected to a stand.

[0013] Preferably, the chassis are evenly distributed around the bottom end of the platform, and the chassis forms an elastic structure with the platform through a damping rod and a spring frame.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model forms a double-layer protection structure without affecting the normal use of the instrument by means of an internal stand fixing the detector terminal and a telescopic combination of the outer shell. Together with the rubber blocks at both ends of the detector terminal, it can provide good internal and external protection and effective anti-seismic buffering of the inner wall when the terminal device body is bumped or impacted, thereby reducing the impact on the internal instruments of the terminal device, further improving the safety protection of the overall terminal device, and being more conducive to frequent carrying and use in insulation detection operations of DC systems.

[0016] 2. This terminal device can form an inclined arrangement through the arc-shaped louvers at both ends, which can prevent rain from entering without affecting the heat dissipation of the internal detection equipment. The external shell structure and the soft rubber frame at the bottom form a closed space to provide protection for the interior and improve the safety of carrying, use and turnover.

[0017] 3. Four sets of symmetrical chassis structures are arranged around the bottom of the terminal device to facilitate the placement and support of the terminal device. Combined with the support rods and spring frame structure of the chassis itself, the anti-seismic buffering performance of the bottom of the terminal device is maintained, which is more conducive to stable placement and use.

[0018] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the built-in terminal station of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the telescopic rod in the built-in terminal of the utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the shock-absorbing base of the utility model.

[0023] In the figure: 1. outer frame; 101. outer shell; 102. handle; 103. window; 104. louver; 105. visual window; 106. soft rubber frame; 107. buckle plate; 2. built-in terminal station; 201. stand; 202. detector terminal; 203. control panel; 204. rubber block; 205. telescopic rod; 206. rod holder; 207. buckle; 3. shock-absorbing base; 301. chassis; 302. support rod; 303. damping rod; 304. spring frame. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this technical field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 A terminal device for detecting the insulation condition of a DC system according to the present embodiment includes an outer frame 1, a built-in terminal platform 2 is arranged at the bottom of the outer frame 1, and a shock-absorbing base 3 is distributed around the bottom end of the built-in terminal platform 2, the outer frame 1 includes an outer shell 101, the inner walls around the outer shell 101 are fixedly connected with a rod frame 206, and the top of the outer shell 101 is fixedly connected with a handle 102, windows 103 are distributed at both ends of the outer shell 101, and louvers 104 are connected inside the windows 103, a visual window 105 is opened at the front end of the outer shell 101, and a soft plastic frame 106 is attached around the bottom end of the outer shell 101, and buckle plates 107 are distributed at both ends of the soft plastic frame 106.

[0026] like Figure 1-3 As shown, the terminal device in the utility model is similar in structure to the existing insulation tester terminal device, such as an insulation tester with publication number CN212658785U. The main improvement of the utility model is that the stand 201 and the housing 101 are connected to form a double-layer protection structure to provide protection and safety for the internal detector terminal 202, and the windows 103 at both ends of the housing 101 and the arranged arc-shaped louvers 104 are combined to improve the overall waterproof protection of the entire device in the external environment; the housing 101 and the detector terminal 202 in the utility model are connected to form a double-layer protection structure to provide protection and safety for the internal detector terminal 202, and the windows 103 at both ends of the housing 101 and the arranged arc-shaped louvers 104 are combined to improve the overall waterproof protection of the entire device in the external environment; 2 are all prior art. When using this terminal device to detect the insulation condition of the DC system, the user can carry and move the entire housing 101 and the terminal device through the carrying handle 102, which is convenient for turnover to different detection positions. This terminal device can form an inclined arrangement through the arc-shaped louvers 104 at both ends, which can prevent rainwater from entering without affecting the heat dissipation of the internal detection instrument, and a closed space is formed by the external housing 101 structure and the soft rubber frame 106 attached to the bottom, which provides protection for the interior and improves the safety of carrying and turnover.

[0027] like Figure 2-3As shown, the built-in terminal station 2 includes a stand 201, and the top surface of the stand 201 is fitted around the bottom of the outer frame 1, the top surface of the stand 201 is fixedly connected to the detector terminal 202, and a control panel 203 is arranged on one side of the detector terminal 202, rubber blocks 204 are distributed at both ends of the detector terminal 202, and telescopic rods 205 are distributed around the detector terminal 202, the top of the telescopic rod 205 is connected to a rod frame 206, one side of the rod frame 206 is fixedly connected to the outer frame 1, and a buckle 207 is arranged on one side of the rod frame 206. When the user carries this terminal device to an environment where detection is required, the buckle plates 107 at both ends of the shell 101 can be rotated open, the entire shell 101 can be lifted upward, and the shell 101 can be opened through the inside of the shell 101. The connected pole frame 206 and the telescopic rod 205 are telescopically extended, thereby exposing the detector terminal 202 set on the top surface of the stand 201, so that the inspector can cooperate with the control panel 203 to perform insulation testing. This terminal device forms a double-layer protection structure without affecting the normal use of the instrument by fixing the detector terminal 202 through the internal stand 201 and the outer shell 101. In combination, the rubber blocks 204 at both ends of the detector terminal 202 can play a good internal and external protection role and effective seismic buffering of the inner wall when the terminal device body is bumped or impacted, thereby reducing the impact on the internal instruments of the terminal device, further improving the safety protection of the overall terminal device, and being more conducive to frequent carrying and use in insulation testing operations of DC systems.

[0028] like Figure 4 As shown, the shock-absorbing base 3 includes a chassis 301, and the top surface of the chassis 301 is fixedly connected to a support rod 302, the top of the support rod 302 is connected to a damping rod 303, and spring frames 304 are distributed around the damping rod 303, and the top surface of the spring frame 304 is fixedly connected to the stand 201. Four groups of symmetrical chassis 301 structures are arranged around the bottom of the terminal device to facilitate the placement and support of the terminal device. In conjunction with the support rod 302 and spring frame 304 structures of the chassis 301 itself, the seismic buffering performance of the bottom itself is maintained, which is more conducive to stable placement and use.

[0029] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A terminal device for detecting the insulation condition of a DC system, comprising an outer frame (1), characterized in that: A built-in terminal platform (2) is arranged at the bottom of the outer frame (1), and a shock-absorbing base (3) is distributed around the bottom end of the built-in terminal platform (2); the built-in terminal platform (2) comprises a stand (201), and the top surface of the stand (201) is in contact with the bottom end of the outer frame (1); the top surface of the stand (201) is fixedly connected to a detector terminal (202), and a control panel (203) is arranged on one side of the detector terminal (202); rubber blocks (204) are distributed at both ends of the detector terminal (202), and telescopic rods (205) are distributed around the detector terminal (202); the top end of the telescopic rod (205) is connected to a rod frame (206), one side of the rod frame (206) is fixedly connected to the outer frame (1), and a buckle (207) is arranged on one side of the rod frame (206).

2. A terminal device for detecting insulation status of a DC system according to claim 1, characterized in that: The outer frame (1) forms a telescopic structure with the stand (201) through the rod frame (206) and the telescopic rod (205), and the rod frame (206) is buckled with one side of the telescopic rod (205) through a buckle (207).

3. A terminal device for detecting insulation status of a DC system according to claim 1, characterized in that: The rubber blocks (204) are symmetrically distributed along the two ends of the detector terminal (202), and the bottom end of the detector terminal (202) and the stand (201) are integrally fixedly connected.

4. A terminal device for detecting insulation status of a DC system according to claim 1, characterized in that: The outer frame (1) comprises an outer shell (101), the inner walls of the outer shell (101) are fixedly connected to a rod frame (206), the top of the outer shell (101) is fixedly connected to a handle (102), windows (103) are distributed at both ends of the outer shell (101), and the inside of the window (103) is connected to a louver (104), a visual window (105) is provided at the front end of the outer shell (101), and a soft plastic frame (106) is attached to the bottom of the outer shell (101), and buckle plates (107) are distributed at both ends of the soft plastic frame (106).

5. A terminal device for detecting insulation status of a DC system according to claim 4, characterized in that: The viewing windows (105) are symmetrically opened along the two ends of the outer shell (101), and the shutter blades (104) are arranged at equal distances around the inner wall of the viewing window (105).

6. A terminal device for detecting insulation status of a DC system according to claim 1, characterized in that: The shock-absorbing base (3) comprises a chassis (301), and the top surface of the chassis (301) is fixedly connected to a support rod (302), the top end of the support rod (302) is connected to a damping rod (303), and spring frames (304) are distributed around the damping rod (303), and the top surface of the spring frame (304) is fixedly connected to a stand (201).

7. A terminal device for detecting insulation status of a DC system according to claim 6, characterized in that: The chassis (301) is evenly distributed around the bottom of the platform (201), and the chassis (301) forms an elastic structure with the platform (201) through a damping rod (303) and a spring frame (304).

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