Protection device for high-precision power analyzer

Abstract

The utility model belongs to the technical field of application of high-precision power analyzers, and particularly discloses a protection device for a high-precision power analyzer. Comprising a skid-mounted base, a group of vertical supporting plates, an analyzer, a square open box body, a box cover, a temperature sensor, a humidity sensor, an air inlet, a filter screen, an air outlet, a connecting flange plate, an exhaust and explosion-proof exhaust fan, a PLC (Programmable Logic Controller) and the like, wherein the explosion-proof exhaust fan, the temperature sensor and the humidity sensor are respectively connected with the PLC. The protection device for the high-precision power analyzer has the beneficial effects that due to the integral structural design, the integrity of the analyzer is not damaged, meanwhile, corresponding sealing protection is carried out, the temperature and humidity of a working environment are automatically kept, and components are kept in an optimal measurement state; and in addition, the analyzer can be suitable for being used in various outdoor environments, so that the analyzer is not exposed in the outdoor environments, and the service life of the analyzer is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to high -precision power analyzer application technical field, specifically related to the protection device for high -precision power analyzer. BACKGROUND

[0002] Power analyzer is the instrument for testing electric power system and electric power equipment parameter. It can be used for measuring the multiple parameters of AC, DC power supply such as voltage, current, power, power factor, electric energy, etc., and power analyzer has wide application in electric power system, electric power equipment manufacturing, electronics, industrial automation and other fields.

[0003] For example, when applied to monitor the stability of the power system, by monitoring the electric energy parameters, current, voltage and other parameters, the load condition of the power system can be judged, and the unstable conditions such as overload and underload of the power system can be avoided to ensure the stable operation of the power system.

[0004] After searching: application No. / patent No. 202021091946.0 discloses a kind of convenient to carry high-precision power analyzer, belongs to high-voltage motor equipment analyzer technical field, this kind of convenient to carry high-precision power analyzer includes analyzer main body, promotion unit and dehumidification unit, the front side of analyzer is provided with display and control panel from left to right, a plurality of control buttons are installed on the top of control panel, power switch is installed below control button of control panel, a plurality of interfaces are formed in the rear side of box, test circuit is inserted in the interface of rear side of box, industrial computer is arranged in box, each component is powered on by control button to control, solve the problem that existing analyzer is inconvenient to carry and does not have moisture-proof measure.

[0005] After analysis: its dehumidification, heat dissipation all need to be manually controlled according to the use environment, cannot realize automatic control, and always starting dehumidification and heat dissipation also causes power resource waste, increases economic cost;In addition, the temperature and humidity of internal analyzer main body cannot be monitored in real time.

[0006] Therefore, based on the above problems, the utility model provides a protection device for high-precision power analyzer. UTILITY MODEL CONTENT

[0007] The utility model aims at providing a protection device for high-precision power analyzer, solving the problems of the convenient-to-carry high-precision power analyzer in the background art, and realizing automatic and safe dehumidification and heat dissipation.

[0008] The utility model provides a protection device for high accuracy power analysis appearance, including pry installation formula base, a group of vertical support plate and analysis appearance, the upper end surface of a group of vertical support plate is provided with square open formula box, two groups of screw grooves are arranged in the upper end surface of square open formula box, the upper portion of square open formula box is provided with the box cover, the four corners of box cover are provided with countersunk screw groove, square open formula box, box cover between through screw groove, countersunk screw groove utilize bolt fixed, one side of box cover and be located square open formula box in are provided with temperature sensor, humidity sensor, the both sides of the upper portion of square open formula box are provided with air inlet, the air inlet is provided with filter screen respectively, the upper end surface of square open formula box and be located air inlet outer layer is provided with round guide ring respectively, the bottom of square open formula box is provided with air outlet, the bottom outer wall of square open formula box and be located air outlet end surface is provided with connecting flange plate, the interface flange plate is provided with exhaust pipe, the pry installation formula base is provided with the blast -proof air -exhaust fan of explosion -proof exhaust pipe connection, the outer wall of square open formula box is provided with PLC controller, wherein, blast -proof air -exhaust fan, temperature sensor, humidity sensor are connected with PLC controller respectively.

[0009] The protection device for high accuracy power analysis appearance further comprises a window arranged in one side of the square open formula box.

[0010] The protection device for high accuracy power analysis appearance further comprises a plurality of wire through holes arranged in the box cover, and a hollow sealing flexible wire sheath mounted on the box cover through the wire through holes.

[0011] The protection device for high accuracy power analysis appearance further comprises a pipeline pressure sensor and a temperature and humidity sensor arranged on the exhaust pipe, wherein the pipeline pressure sensor is connected with the PLC controller.

[0012] The protection device for high accuracy power analysis appearance further comprises a temperature and humidity sensor arranged on the exhaust pipe, wherein the temperature and humidity sensor is connected with the PLC controller.

[0013] Compared with the prior art, the protection device for high accuracy power analysis appearance has the following beneficial effects: 1. The overall structure design does not damage the integrity of the analysis appearance, simultaneously performs corresponding sealing protection, realizes automatic working environment temperature and humidity maintenance, and maintains the constituent components in the best measurement state; 2. Reduces power consumption and economic cost, and can be used in various outdoor environments, so that the analysis appearance is not exposed to the outdoor environment, and the service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings described in the following embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0015] Figure 1 is a front view structural schematic diagram of the protection device for the high-precision power analyzer of the present application;

[0016] Figure 2 is a top view structural schematic diagram of the square open box, two groups of screw grooves, air inlet and window of the protection device for the high-precision power analyzer of the present application;

[0017] Figure 3 is a top view structural schematic diagram of the box cover, countersunk screw groove and wire through hole of the protection device for the high-precision power analyzer of the present application;

[0018] In the drawings, the serial numbers are as follows: 100 - pry-on base, 101 - vertical support plate, 102 - analyzer, 103 - square open box, 104 - screw groove, 105 - box cover, 106 - countersunk screw groove, 107 - bolt, 108 - window, 109 - air inlet, 110 - filter screen, 111 - circular guide ring, 112 - air outlet, 113 - connecting flange plate, 114 - exhaust pipe, 115 - explosion-proof air extraction fan, 116 - temperature sensor, 117 - humidity sensor, 118 - pipeline pressure sensor, 119 - temperature and humidity sensor, 120 - PLC controller, 121 - wire through hole, 122 - hollow sealed flexible wire sheath. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0020] In the description of the utility model, it is necessary to explain that the terms "top", "bottom", "one side", "the other side", "front", "back", "intermediate position", "interior", "top end", "bottom end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model indicated or implied by the device or element having a specific orientation, a specific orientation and operation, and therefore cannot be understood as limiting the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0021] Embodiment one

[0022] As shown in Figure 1 , Figure 2 and Figure 3 The protection device for high-precision power analyzer includes a pry-mounted base 100, a set of vertical support plates 101 and an analyzer 102,

[0023] The upper end face of the set of vertical support plates 101 is provided with a square open box 103,

[0024] Two groups of screw grooves 104 are arranged in the upper end face of the square open box 103,

[0025] The upper part of the square open box 103 is provided with a box cover 105,

[0026] The four corners of the box cover 105 are provided with countersunk screw grooves 106,

[0027] The square open box 103 and the box cover 105 are fixed by bolts 107 through the screw grooves 104 and the countersunk screw grooves 106,

[0028] One side of the box cover 105 and located in the square open box 103 is provided with a temperature sensor 116 and a humidity sensor 117,

[0029] Air inlets 109 are arranged on both sides of the upper part of the square open box 103,

[0030] The air inlets 109 are respectively provided with filter screens 110 (for blocking dust),

[0031] The upper end surface of the square open box 103 is provided with a circular guide ring 111 outside the air inlet 109,

[0032] The bottom of the square open box 103 is provided with an air outlet 112,

[0033] The bottom outer wall of the square open box 103 is provided with a connecting flange plate 113 at the end surface of the air outlet 112,

[0034] The connecting flange plate 113 is provided with an exhaust pipe 114,

[0035] The pry-mounted base 100 is provided with an explosion-proof air exhaust fan 115 connected with the exhaust pipe 114,

[0036] The outer wall of the square open box 103 is provided with a PLC controller 120;

[0037] The explosion-proof air exhaust fan 115, the temperature sensor 116, and the humidity sensor 117 are respectively connected with the PLC controller 120.

[0038] The working principle is that the analyzer 102 is located in the square open box 103, the temperature sensor 116 and the humidity sensor 117 are respectively used to monitor the working temperature and the working humidity in the square open box 103, and are respectively fed back to the PLC controller 120, and the PLC controller 120 controls the explosion-proof air exhaust fan 115 to start / stop according to the feedback working temperature and working humidity.

[0039] The PLC controller 120 presets the temperature value range and the humidity value range in the square open box 103. When the maximum value is exceeded, the PLC controller 120 controls the explosion-proof air exhaust fan 115 to start, at this time, the internal air is discharged through the air outlet 112, the connecting flange plate 113, and the exhaust pipe 114, and the external air enters the square open box 103 through the circular guide ring 111 and the air inlet 109, so that air circulation is realized, and temperature and humidity adjustment is completed. When the temperature value range and the humidity value range are within the preset value range of the PLC controller 120, the explosion-proof air exhaust fan 115 is stopped.

[0040] Example two

[0041] On the basis of example one, the protection device for high-precision power analyzer further includes a window 108 arranged on one side of the square open box 103.

[0042] The window 108 covers the display surface of the analyzer 102, so that the working personnel can observe the measurement parameters of the analyzer 102 through the window 108 (the transparent window).

[0043] Example three

[0044] On the basis of the first or second embodiment, the protection device for high-precision power analyzers further comprises a plurality of wire through holes 121 arranged in the box cover 105, and hollow sealed flexible wire sheaths 122 respectively installed on the box cover 105 through the wire through holes 121.

[0045] The external wires or signal transmission lines are first inserted into the hollow sealed flexible wire sheaths 122, and then the hollow sealed flexible wire sheaths 122 are inserted into the wire through holes 121, so as to realize the wear protection of the corresponding external wires or signal transmission lines and realize the sealed operation.

[0046] Embodiment four

[0047] On the basis of the first or second or third embodiment, the protection device for high-precision power analyzers further comprises a pipeline pressure sensor 118 and a temperature and humidity sensor 119 arranged on the exhaust pipe 114.

[0048] The pipeline pressure sensor 118 is connected with the PLC controller 120.

[0049] The working principle is that the pipeline pressure sensor 118 is used to monitor the pressure value in the exhaust pipe 114 during exhaust, and feedback to the PLC controller 120 (the PLC controller 120 presets the pipeline pressure value of safe exhaust work), and the PLC controller 120 combines the feedback pressure value to perform corresponding early warning or working state control, so as to realize safe exhaust operation.

[0050] Embodiment five

[0051] On the basis of the first or second or third or fourth embodiment, the protection device for high-precision power analyzers further comprises a temperature and humidity sensor 119 arranged on the exhaust pipe 114.

[0052] The temperature and humidity sensor 119 is connected with the PLC controller 120.

[0053] The working principle is that the temperature and humidity sensor 119 is used to monitor the temperature and humidity value in the exhaust pipe 114 during exhaust, and feedback to the PLC controller 120 (the PLC controller 120 presets the temperature and humidity range value in the exhaust pipe 114), and the PLC controller 120 combines the feedback temperature and humidity range value to perform corresponding working state control of the explosion-proof exhaust fan 115, that is, when the preset value is met, the explosion-proof exhaust fan 115 is controlled to stop, and when the preset value is exceeded, the explosion-proof exhaust fan 115 is controlled to start.

[0054] The temperature and humidity sensor 119 is a supplement to the temperature sensor 116 and the humidity sensor 117, and can be optionally installed.

[0055] The protection device for high-precision power analyzer of the structure, the analyzer 102, the explosion-proof air exhaust fan 115, the temperature sensor 116, the humidity sensor 117, the pipeline pressure sensor 118, the temperature and humidity sensor 119 and the PLC controller 120 are all conventional components or devices.

[0056] It should be noted that in this text, such as the term "including", "including" or any other variant is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0057] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A protection device for high-precision power analyzers, comprising a pry-mounted base (100), a set of vertical support plates (101) and an analyzer (102), characterized in that: the upper end face of the set of vertical support plates (101) is provided with a square open box (103), two sets of screw grooves (104) are arranged in the upper end face of the square open box (103), the upper part of the square open box (103) is provided with a box cover (105), sunk screw grooves (106) are arranged in the four corners of the box cover (105), the square open box (103) and the box cover (105) are fixed by bolts (107) through the screw grooves (104) and the sunk screw grooves (106), a temperature sensor (116) and a humidity sensor (117) are arranged on one side of the box cover (105) and inside the square open box (103), air inlets (109) are arranged on both sides of the upper part of the square open box (103), filter screens (110) are arranged in the air inlets (109), circular guide rings (111) are arranged on the upper end face of the square open box (103) and outside the air inlets (109), an air outlet (112) is arranged at the bottom of the square open box (103), a connection flange plate (113) is arranged on the outer wall of the bottom of the square open box (103) and at the end face of the air outlet (112), an exhaust pipe (114) is arranged on the connection flange plate (113), an explosion-proof exhaust fan (115) connected with the exhaust pipe (114) is arranged on the pry-mounted base (100), a PLC controller (120) is arranged on the outer wall of the square open box (103); wherein the explosion-proof exhaust fan (115), the temperature sensor (116) and the humidity sensor (117) are connected with the PLC controller (120) respectively.

2. The protection device for a high-precision power analyzer according to claim 1, characterized in that: The protection device for high-precision power analyzers further comprises a window (108) arranged on one side of the square open box (103).

3. Protection device for a high-precision power analyser according to claim 1 or 2, characterized in that: The protection device for high-precision power analyzers further comprises a plurality of wire through holes (121) arranged in the box cover (105), and a hollow sealed flexible wire sheath (122) mounted on the box cover (105) through the wire through holes (121) respectively.

4. The protection device for a high-precision power analyzer according to claim 3, characterized in that: The protection device for high-precision power analyzers further comprises a pipeline pressure sensor (118) and a temperature and humidity sensor (119) arranged on the exhaust pipe (114); wherein the pipeline pressure sensor (118) is connected with the PLC controller (120).

5. The protection device for a high-precision power analyzer according to claim 4, characterized in that: The protection device for high-precision power analyzers further comprises a temperature and humidity sensor (119) arranged on the exhaust pipe (114); wherein the temperature and humidity sensor (119) is connected with the PLC controller (120).

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