Three-phase electricity phase sequence monitor

Abstract

The utility model discloses a three-phase electric phase sequence monitor, which relates to the technical field of power electronics and comprises a monitor body, mounting mechanisms are arranged on two sides of the monitor body, damping mechanisms are arranged on the inner sides of the mounting mechanisms, the mounting mechanisms comprise fixing blocks fixedly mounted on two sides of the monitor body, and the fixing blocks are fixedly connected with the mounting mechanisms. A T-shaped sliding groove is formed in one side of the fixing block, the damping mechanism comprises an installation plate installed in the T-shaped sliding groove in a sliding mode, a supporting column is fixedly installed on one side of the installation plate, a spring pressing rod is arranged in an inner cavity of the supporting column, and a connecting plate is arranged at one end of the spring pressing rod. According to the three-phase electricity phase sequence monitor, through the arrangement of the damping mechanism, external force impact can be effectively absorbed and buffered, so that the internal structure and parts of equipment are protected from being damaged, the service life of the equipment is prolonged, and through the arrangement of the protective shell and the rubber pad, additional shockproof and damping functions can be provided; and the durability and the stability of the equipment are further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of power electronics, and in particular relates to a three-phase electric phase sequence monitor. Background Art

[0002] Three-phase electricity refers to an electrical system composed of three AC power sources. Three-phase electricity is widely used in industrial and commercial fields because it has many advantages, including high efficiency, suitability for high-power loads, and convenience in power transmission and distribution. The correct three-phase electricity phase sequence is essential for the normal operation of many electrical equipment. If the phase sequence is wrong, it may cause equipment damage, abnormal operation, and even dangerous events. The phase sequence monitor can detect phase sequence errors in time and issue an alarm to help prevent such problems from occurring and ensure the safety of equipment and personnel.

[0003] The current three-phase electrical phase sequence monitor has obvious deficiencies in durability. It is difficult for it to effectively resist external vibration or impact. Vibration or impact may cause connectors, solder joints or screws inside the equipment to loosen or break, thereby affecting the normal operation of the equipment. It may also cause the measurement accuracy of the equipment to decrease, making the monitoring results inaccurate, thus affecting the monitoring and protection of the power system. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing three-phase electrical phase sequence monitor has obvious shortcomings in durability and cannot effectively resist external vibration or impact.

[0005] The utility model adopts the following technical solution to solve the technical problem: a three-phase electrical phase sequence monitor, comprising a monitor body, mounting mechanisms are arranged on both sides of the monitor body, a shock absorbing mechanism is arranged on the inner side of the mounting mechanism, the mounting mechanism comprises fixing blocks fixedly mounted on both sides of the monitor body, a T-shaped groove is opened on one side of the fixing block, the shock absorbing mechanism comprises a mounting plate slidably mounted on the T-shaped groove, a pillar is fixedly mounted on one side of the mounting plate, a spring pressure rod is arranged in the inner cavity of the pillar, a connecting plate is arranged at one end of the spring pressure rod, and a pressure block is arranged at one end of the connecting plate.

[0006] As a preferred embodiment of the present invention, the mounting mechanism further comprises a limiting hole formed on the inner wall of the T-shaped slide groove, and the inner side of the limiting hole is threadedly connected with a limiting bolt.

[0007] As a preferred embodiment of the present invention, both sides of the surface of the connecting plate are provided with clamping holes, and the inner sides of the clamping holes are provided with fixing columns.

[0008] As a preferred embodiment of the utility model, a protective shell is provided at one end of the fixing column, a rubber pad is provided on one side of the inner wall of the protective shell, and the rubber pad is located on the back side of the monitor body.

[0009] As a preferred embodiment of the present invention, the number of the mounting mechanisms and the number of the shock absorbing mechanisms are both four, and they are distributed on both sides of the monitor body.

[0010] As a preferred embodiment of the present invention, a measuring line is provided on the top of the monitor body, and a probe is provided at one end of the measuring line.

[0011] As a preferred embodiment of the utility model, an adapter is provided on the outer side of the probe, and a protective sleeve is provided on one end of the adapter.

[0012] The beneficial effects of the utility model are:

[0013] 1. This three-phase electrical phase sequence monitor can effectively absorb and buffer external force impact through the setting of the shock absorbing mechanism, thereby protecting the internal structure and components of the equipment from damage and extending the service life of the equipment. The setting of the protective shell and rubber pad can also provide additional shockproof and shock absorbing functions, further improving the durability and stability of the equipment.

[0014] 2. This three-phase electrical phase sequence monitor, through the setting of the installation mechanism, is convenient for users to disassemble the shock absorbing mechanism, facilitate the repair or replacement of damaged parts, reduce the repair time, and reduce the complexity and difficulty of the repair process. Regular maintenance and replacement of the shock absorbing mechanism can extend the service life of the equipment, reduce the occurrence rate of failures, and thus improve the stability and durability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view stereogram of the overall structure provided by the embodiment of the utility model;

[0016] Figure 2 It is an exploded view of the main structure of the monitor provided by the embodiment of the utility model;

[0017] Figure 3 It is a front view of the internal structure of the protective shell provided by the embodiment of the utility model;

[0018] Figure 4 This is an exploded view of the internal structure of the protective shell provided by the embodiment of the utility model;

[0019] Figure 5 It is an exploded view of a local structure provided by an embodiment of the utility model;

[0020] Figure 6 This is a wiring diagram of a phase sequence monitor provided by an embodiment of the utility model.

[0021] Explanation of the markings in the figure: 1. Monitor body; 2. Mounting mechanism; 201. Fixing block; 202. T-shaped slide groove; 203. Limiting hole; 204. Limiting bolt; 3. Shock absorption mechanism; 301. Mounting plate; 302. Support column; 303. Spring pressure rod; 304. Connecting plate; 305. Pressure block; 4. Clamp hole; 5. Fixing column; 6. Protective shell; 7. Rubber pad; 8. Measuring line; 9. Probe; 10. Adapter; 11. Protective cover. DETAILED DESCRIPTION

[0022] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0023] like Figures 1 to 5 As shown, the utility model provides a three-phase electrical phase sequence monitor, including a monitor body 1, mounting mechanisms 2 are arranged on both sides of the monitor body 1, a shock absorbing mechanism 3 is arranged on the inner side of the mounting mechanism 2, the mounting mechanism 2 includes a fixing block 201 fixedly installed on both sides of the monitor body 1, a T-shaped slide groove 202 is opened on one side of the fixing block 201, the shock absorbing mechanism 3 includes a mounting plate 301 slidably installed in the T-shaped slide groove 202, a pillar 302 is fixedly installed on one side of the mounting plate 301, a spring pressure rod 303 is arranged in the inner cavity of the pillar 302, a connecting plate 304 is arranged at one end of the spring pressure rod 303, and a pressure block 305 is arranged at one end of the connecting plate 304.

[0024] refer to Figures 1 to 5 The mounting mechanism 2 also includes a limiting hole 203 opened on the inner wall of the T-shaped slide groove 202, the inner side of the limiting hole 203 is threadedly connected with a limiting bolt 204, and both sides of the surface of the connecting plate 304 are provided with clamping holes 4, and the inner side of the clamping hole 4 is clamped with a fixing column 5, and a protective shell 6 is provided at one end of the fixing column 5, and a rubber pad 7 is provided on one side of the inner wall of the protective shell 6, and the rubber pad 7 is located on the back of the monitor body 1. The number of mounting mechanisms 2 and shock absorbing mechanisms 3 is four, and they are distributed on both sides of the monitor body 1.

[0025] The above scheme is adopted: the monitor body 1 is responsible for receiving and processing the power signal from the probe 9 to monitor the phase sequence of the three-phase power supply. The fixing block 201 and the T-shaped slide groove 202 are arranged to install and fix the mounting plate 301 for installing the shock absorbing mechanism 3, and it is convenient for the user to disassemble and repair the shock absorbing mechanism 3. The limiting hole 203 and the limiting bolt 204 are arranged to limit the position of the mounting plate 301 to prevent it from sliding. The card hole 4 opened on the connecting plate 304 can be carded with the fixing column 5 on the inner wall of the protective shell 6, so as to fix the shock absorbing mechanism 3 to the protective shell 6. The spring pressure rod 303 can be installed by the arrangement of the pillar 302. The spring pressure rod 303 can absorb the external force impact on the monitor body 1, reduce the vibration of the monitor body 1, and protect it from damage. The rubber pad 7 can provide additional shockproof and shock absorbing functions.

[0026] refer to Figure 1 to Figure 2 A measuring line 8 is arranged on the top of the monitor body 1, a probe 9 is arranged at one end of the measuring line 8, an adapter 10 is sleeved on the outer side of the probe 9, and a protective cover 11 is sleeved on one end of the adapter 10.

[0027] The above scheme is adopted: through the setting of the measuring line 8, the monitor body 1 can be connected to the probe 9, so that the power signal collected by the probe 9 can be transmitted to the monitor body 1. Through the setting of the probe 9, it can directly contact the three-phase power supply to collect the power signal. Through the setting of the adapter 10, the compatibility of the device can be increased so that it can be effectively connected with a variety of devices or systems. Through the setting of the protective cover 11, the adapter 10 can be protected from external physical impact or damage, thereby ensuring the reliability of signal transmission.

[0028] like Figure 6 As shown:

[0029] Terminal 1 is connected to L1;

[0030] Terminal 2 is connected to L2;

[0031] Terminal 4 is connected to L3;

[0032] Terminal 6 is connected to the normally closed contact of the relay output;

[0033] Terminal 7 is connected to the normally open contact of the relay output;

[0034] Terminal 8 is connected to the common point of the relay output.

[0035] When the power fails, a contact signal is output and provided to the power control system to cut off the power supply to protect the equipment from damage.

[0036] The green LED① lights up to indicate that there are at least two phases;

[0037] The yellow LED② lights up to indicate that the sequence of the three phases is correct;

[0038] When the LED is on, the relay is activated and operating normally; when the LED is off, it indicates an alarm state.

[0039] Working principle:

[0040] When in use, the shock absorbing mechanism 3 is installed on the monitor body 1 through the fixing block 201 and the T-shaped slide groove 202, and the mounting plate 301 slides in the T-shaped slide groove 202 until it reaches a suitable position, and then, the limiting bolt 204 is used to pass through the limiting hole 203 to limit the mounting plate 301 to prevent it from sliding. In addition, the fixing column 5 on the inner wall of the protective shell 6 is engaged with the clamping hole 4 on the connecting plate 304 to fix the shock absorbing mechanism 3 and the protective shell 6 together, so that the entire monitor is well protected. When the monitor body 1 is subjected to external impact or vibration, the spring pressure rod 303 It will absorb these impact forces and reduce the vibration of the monitor body 1. The pillar 302 supports the spring pressure rod 303, and the connecting plate 304, the pressure block 305 and the fixing column 5 ensure the fixed connection between the shock absorbing mechanism 3 and the protective shell 6. The protective shell 6 and the rubber pad 7 further enhance the shockproof and protective effects to ensure that the monitor body 1 can work normally in harsh environments. Subsequently, the probe 9 is inserted into each phase of the three-phase power supply, and the collected power signal is transmitted to the monitor body 1 through the measuring line 8. The monitor body 1 is responsible for receiving and processing these signals to monitor the phase sequence of the three-phase power supply.

[0041] To sum up: this three-phase electrical phase sequence monitor, through the setting of the shock absorbing mechanism 3, can effectively absorb and buffer external force impact, thereby protecting the internal structure and components of the equipment from damage and extending the service life of the equipment. The setting of the protective shell 6 and the rubber pad 7 can also provide additional shockproof and shock absorbing functions, further improving the durability and stability of the equipment. Through the setting of the mounting mechanism 2, it is convenient for users to disassemble the shock absorbing mechanism 3, facilitate the repair or replacement of damaged parts, reduce the repair time, and reduce the complexity and difficulty of the repair process. Regular maintenance and replacement of the shock absorbing mechanism 3 can extend the service life of the equipment, reduce the occurrence rate of failures, and thus improve the stability and durability of the equipment.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device;

[0043] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0044] The above description only describes the specific implementation methods of the utility model. Various examples do not limit the essential content of the utility model. Ordinary technicians in the relevant technical field can modify or deform the specific implementation methods described above after reading the description without departing from the essence and scope of the utility model.

Claims

1. A three-phase electrical phase sequence monitor, comprising a monitor body (1), both sides of the monitor body (1) are provided with mounting mechanisms (2), the inner side of the mounting mechanism (2) is provided with a shock absorbing mechanism (3), characterized in that: The mounting mechanism (2) comprises a fixing block (201) fixedly mounted on both sides of the monitor body (1), one side of the fixing block (201) is provided with a T-shaped slide groove (202), the shock absorbing mechanism (3) comprises a mounting plate (301) slidably mounted on the T-shaped slide groove (202), one side of the mounting plate (301) is fixedly mounted with a pillar (302), the inner cavity of the pillar (302) is provided with a spring pressure rod (303), one end of the spring pressure rod (303) is provided with a connecting plate (304), and one end of the connecting plate (304) is provided with a pressure block (305).

2. A three-phase electrical phase sequence monitor according to claim 1, characterized in that: The mounting mechanism (2) further comprises a limiting hole (203) formed on the inner wall of the T-shaped sliding groove (202), and the inner side of the limiting hole (203) is threadedly connected to a limiting bolt (204).

3. A three-phase electrical phase sequence monitor according to claim 1, characterized in that: The connection plate (304) is provided with clamping holes (4) on both sides of its surface, and fixing columns (5) are clamped inside the clamping holes (4).

4. A three-phase electrical phase sequence monitor according to claim 3, characterized in that: A protective shell (6) is provided at one end of the fixing column (5), a rubber pad (7) is provided on one side of the inner wall of the protective shell (6), and the rubber pad (7) is located on the back side of the monitor body (1).

5. A three-phase electrical phase sequence monitor according to claim 1, characterized in that: The number of the mounting mechanisms (2) and the number of the shock absorbing mechanisms (3) are both four, and they are distributed on both sides of the monitor body (1).

6. A three-phase electrical phase sequence monitor according to claim 1, characterized in that: A measuring line (8) is arranged on the top of the monitor body (1), and a probe (9) is arranged at one end of the measuring line (8).

7. A three-phase electrical phase sequence monitor according to claim 6, characterized in that: An adapter (10) is sleeved on the outer side of the probe (9), and a protective sleeve (11) is sleeved on one end of the adapter (10).

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