Power grid filtering device with temperature control protection

Abstract

The utility model relates to the technical field of new energy, and provides a power grid filtering device with temperature control protection, which comprises a main body box; the fixed seat is fixedly mounted on the inner bottom wall of the main body box; the circuit board is fixedly mounted at the top of the fixed seat; the switching power supply is fixedly mounted on one side of the inner wall of the main box; the relay group is arranged at the top of the circuit board; and the capacitor plate is fixedly arranged at the top of the fixed seat and is positioned on one side of the circuit board, and a filtering unit is arranged on the capacitor plate. Under the action of parallel connection of common-mode and differential-mode double inductors and multiple capacitors of the filter, power grid harmonic waves can be well absorbed and suppressed, so that distortion and quality of power grid waveforms are improved, power grid waveforms meeting requirements are provided for output of energy storage equipment, and the effect of improving the filtering effect is achieved; and furthermore, the device is relatively small in overall size and convenient to use, so that the use effect and the practicability of the device are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy technology field, concretely relates to a power grid filter device with temperature control protection. BACKGROUND

[0002] With the vigorous development of new energy, energy storage equipment as the core equipment of industrial and commercial energy storage, application scene is complex and various. Under part scene, the electric equipment is complex, the inductive load is more, the power grid output is unstable, and the waveform is poor. Bring control difficulty, loss increase, efficiency decline and other problems to industrial and commercial energy storage equipment, seriously affect the operation stability of energy storage equipment.

[0003] The prior art scheme has the problems of large size, general filtering effect, and no over-temperature breaking capacity, which can easily cause the device to be damaged due to high temperature, thereby reducing the use effect and service life of the device. UTILITY MODEL CONTENT

[0004] The utility model provides a power grid filter device with temperature control protection, which solves the problems of large size, general filtering effect, and no over-temperature breaking capacity in the prior art, thereby reducing the use effect and service life of the device.

[0005] The technical scheme of the utility model is as follows: a power grid filter device with temperature control protection, comprising: a main box;

[0006] A fixing seat fixedly installed on the inner bottom wall of the main box;

[0007] A circuit board fixedly installed on the top of the fixing seat;

[0008] A switching power supply fixedly installed on one side of the inner wall of the main box;

[0009] A relay group arranged on the top of the circuit board;

[0010] A capacitor plate fixedly installed on the top of the fixing seat and located on one side of the circuit board, wherein the capacitor plate is provided with a filter unit;

[0011] And a temperature control mechanism arranged on the circuit board for protecting the device;

[0012] The filter unit comprises a filter arranged on one side of the top of the capacitor plate and a plurality of capacitors arranged on the other side of the top of the capacitor plate, wherein the filter is provided with common mode and differential mode dual inductors, and each adjacent capacitor is connected in parallel.

[0013] The filter and the capacitor are electrically connected, and the switching power supply, the relay group and the filter unit are electrically connected.

[0014] Preferably, the temperature control mechanism comprises a temperature control switch fixedly installed on the top of the circuit board, and a heat dissipation component arranged on the main body box, and the switch power supply, the temperature control switch and the relay group are electrically connected.

[0015] The heat dissipation component comprises two heat dissipation fans symmetrically installed through the inner wall of the main body box on one side, and an air inlet filter screen arranged on the other side of the inner wall of the main body box, and a dustproof screen is fixedly installed on the air outlet end of the heat dissipation fan, and an air inlet groove is formed through one side of the main body box, and the air inlet filter screen is fixedly installed in the air inlet groove.

[0016] Preferably, a sealing ring is fixedly installed on the top of the main body box, and the top of the main body box is hingedly connected with a box cover.

[0017] A cylindrical lock is installed through one side of the box cover, and a handle is arranged on one side of the box cover and located on one side of the cylindrical lock.

[0018] The working principle and beneficial effects of the utility model are as follows:

[0019] Firstly, the utility model can better absorb and suppress power grid harmonics through the parallel connection of the common mode and differential mode double inductors and multiple capacitors of the filter, thereby improving the distortion and quality of the power grid waveform, providing a power grid waveform that meets the requirements for the output of the energy storage device, and thus improving and enhancing the filtering effect, thereby ensuring the stability and quality of the power grid output, and the device has a small overall size, is convenient to use, effectively improves the use effect and practicality of the device, and is beneficial to improving the stability of the output power grid of the energy storage device.

[0020] Secondly, the heat dissipation fan and the air inlet filter screen can continuously dissipate heat in the main body box, prevent the device from being damaged due to high temperature, and automatically disconnect the temperature control switch when the temperature reaches 85 degrees, thereby cutting off the power supply circuit of the switch power supply to the relay group, so that the relay group jumps to stop the filter unit from working, and then when the temperature drops to 55 degrees, the temperature control switch is turned on again, so that the relay group is attracted to make the filter unit work again, thereby achieving the temperature control protection effect of the device, avoiding the damage caused by high temperature continuous operation of the device, and improving the service life and safety of the device. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be further described in detail in combination with the drawings and specific embodiments.

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0023] Figure 2The utility model discloses a side view three -dimensional structure schematic diagram of the utility model;

[0024] Figure 3 The utility model discloses the inside three -dimensional structure schematic diagram of the main body box of the utility model;

[0025] Figure 4 The utility model discloses the electric connection principle plane structure schematic diagram of the utility model;

[0026] In the drawing: 1, main body box, 2, fixed seat, 3, circuit board, 4, switching power supply, 5, relay group, 6, electric capacity board, 7, filter, 8, electric capacity, 9, temperature control switch, 10, cooling fan, 11, dust screen, 12, air inlet filter screen, 13, sealing ring, 14, box cover, 15, cylinder lock, 16, handle. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are involved in the protection scope of the utility model.

[0028] Embodiment one

[0029] Please refer to Figure 1 - Figure 4 The utility model provides a kind of electric network filter device with temperature control protection, it include: main body box 1;

[0030] Fixed seat 2 is fixedly installed in the inner bottom wall of main body box 1;

[0031] Circuit board 3 is fixedly installed in the top of fixed seat 2;

[0032] Switching power supply 4 is fixedly installed in the inner wall of main body box 1 side, wherein, switching power supply 4 uses external 220V alternating current to power for it, and the output of switching power supply 4 is 12V;

[0033] Relay group 5 is located in the top of circuit board 3;

[0034] Electric capacity board 6 is fixedly installed in the top of fixed seat 2 and is located in the side of circuit board 3, and filter unit is equipped on electric capacity board 6;

[0035] And temperature control mechanism for protecting device is equipped on circuit board 3;

[0036] The filter unit comprises a filter 7 arranged on one side of the top of the capacitor plate 6 and a plurality of capacitors 8 arranged on the other side of the top of the capacitor plate 6, the filter 7 is provided with common-mode and differential-mode double inductors, and each adjacent capacitor 8 is connected in parallel, wherein the filter 7 adopts LC filtering.

[0037] The filter 7 and the capacitor 8 are electrically connected in parallel, and the switch power supply 4, the relay group 5 and the filter unit are electrically connected in parallel.

[0038] The technical scheme provided by the embodiment is as follows: in use, the device is powered, and the switch power supply 4 and the relay group 5 are used to make the filter unit work, and in the working process of the filter unit, under the parallel connection of the common-mode and differential-mode double inductors of the filter 7 and the plurality of capacitors 8, the power grid harmonics can be better absorbed and suppressed, so as to improve the distortion and quality of the power grid waveform, so as to provide a power grid waveform that meets the requirements for the energy storage device output, thereby realizing the effect of improving and enhancing the filtering effect, and further ensuring the stability and quality of the power grid output, and the device has a small overall size, is convenient to use, and can realize the effect of over-temperature protection through the temperature control mechanism in use, thereby effectively improving the use effect and practicality of the device, and further improving the stability of the power grid output by the energy storage device.

[0039] Further, the temperature control mechanism comprises a temperature control switch 9 fixedly installed on the top of the circuit board 3 and a heat dissipation component arranged on the main body box 1, and the switch power supply 4, the temperature control switch 9 and the relay group 5 are electrically connected in parallel, wherein the temperature control switch 9 is of an eighty-five-degree normally closed type.

[0040] The heat dissipation component comprises two heat dissipation fans 10 symmetrically installed through one side of the inner wall of the main body box 1 and an air inlet filter screen 12 arranged on the other side of the inner wall of the main body box 1, a dust screen 11 is fixedly installed on the exhaust end of the heat dissipation fan 10, an air inlet groove is formed through one side of the main body box 1, and the air inlet filter screen 12 is fixedly installed in the air inlet groove, wherein the heat dissipation fan 10 is powered by external 220V alternating current.

[0041] Specifically, when the device is used, the heat dissipation fan 10 cooperates with the air inlet filter screen 12 to continuously dissipate heat inside the main box 1, which prevents the device from being damaged due to high temperature, and prevents external dust from entering from the heat dissipation fan 10 and the air inlet groove under the action of the dustproof net 11 and the air inlet filter screen 12, thereby preventing dust from affecting the use of the device. When the device works under high load and the temperature rises accidentally, when the temperature reaches 85 degrees, the temperature control switch 9 automatically disconnects, at this time the power supply circuit of the switch power supply 4 to the relay group 5 is cut off, so that the relay group 5 jumps to stop the filter unit from working. With the continuous heat dissipation of the heat dissipation fan 10, when the temperature drops to 55 degrees, the temperature control switch 9 is reconnected, so that the relay group 5 is attracted to make the filter unit work again, thereby realizing the temperature control protection effect of the device, avoiding the damage caused by the continuous operation of the device at high temperature, and improving the service life and safety of the device.

[0042] Further, the top of the main box 1 is fixedly provided with a sealing ring 13, and the top of the main box 1 is hingedly connected with a box cover 14.

[0043] A cylindrical lock 15 is installed on one side of the box cover 14, and a handle 16 is installed on one side of the box cover 14 and located on one side of the cylindrical lock 15.

[0044] Specifically, the sealing ring 13 cooperates with the box cover 14 to ensure the sealing effect of the main box 1, thereby preventing external dust from entering the main box 1 and adhering to the components, affecting the use effect of the internal components of the main box 1. The cylindrical lock 15 is provided, and the lock tongue thereof can conveniently close the main box 1 to ensure the use safety of the device. The handle 16 is provided to facilitate personnel to open the box cover 14 and maintain the internal components of the main box 1.

[0045] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A power grid filter device with temperature control protection, characterized in that, The utility model relates to a kind of protection device for electronic equipment, including: Main body box (1); Fixed seat (2) fixedly installed in the bottom wall of main body box (1); Circuit board (3) fixedly installed in the top of fixed seat (2); Switching power supply (4) fixedly installed in the inner wall of main body box (1) one side; Relay group (5) is located in the top of circuit board (3); Capacitance board (6) fixedly installed in the top of fixed seat (2) and located in the one side of circuit board (3), filter unit is equipped on the capacitance board (6); And temperature control mechanism for being equipped on circuit board (3) for device protection; The filter unit includes filter (7) being equipped in the top of one side of capacitance board (6) and multiple capacitors (8) being equipped in the top of other side of capacitance board (6), common mode and differential mode double inductance are equipped in the filter (7), every adjacent capacitor (8) is parallelly connected.

2. The power grid filter device with temperature control protection according to claim 1, characterized in that, Between the filter (7) and capacitor (8), the switching power supply (4), relay group (5) and filter unit are electrically connected.

3. The power grid filter device with temperature control protection according to claim 1, characterized in that, The temperature control mechanism includes temperature control switch (9) fixedly installed in the top of circuit board (3), and heat dissipation component is equipped on main body box (1), and the switching power supply (4), temperature control switch (9) and relay group (5) are electrically connected.

4. The power grid filter device with temperature control protection according to claim 3, characterized in that, The heat dissipation component includes two heat dissipation fans (10) being symmetrically installed in the inner wall of main body box (1) one side, and air inlet filter screen (12) is equipped in the inner wall of main body box (1) other side, dust screen (11) is fixedly installed in the exhaust end of heat dissipation fan (10), the side surface of main body box (1) is provided with air inlet groove, and air inlet filter screen (12) is fixedly installed in the inside of air inlet groove.

5. The power grid filter device with temperature control protection according to claim 1, characterized in that, Sealing ring (13) is fixedly installed in the top of main body box (1), and box cover (14) is hinged in the top of main body box (1) by hinge.

6. The power grid filter device with temperature control protection according to claim 5, characterized in that, Cylinder lock (15) is installed in the side surface of box cover (14), and handle (16) is located in the side surface of box cover (14) and on the side of cylinder lock (15).

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