Cascade voltage regulator

Abstract

The utility model discloses a cascade voltage regulator, belongs to the technical field of voltage regulators, and solves the problem that dust in the air enters a casing through a heat dissipation groove and then is attached to an iron core winding under the condition that the voltage regulator does not work. Comprising a machine shell, an annular iron core winding arranged in the machine shell, a rotating button rotationally arranged on the top face of the machine shell, a rotating block which is fixedly connected to the bottom face of the rotating button and penetrates into the machine shell, and a rotating shaft fixedly connected to the bottom face of the rotating block, and the lower end of the rotating shaft and the top face of the annular iron core winding are rotationally arranged; an air guiding assembly located below the rotating block is arranged on the rotating shaft. The annular iron core winding is electrified to generate a magnetic field, the rotor magnetic sheet is driven, the bearing outer ring rotates to drive the fan blades, hot air is promoted to be exhausted, the heat dissipation grooves are opened, when the voltage regulator stops working, the fan blades stop rotating, the soft shielding sheet seals the heat dissipation grooves, dust accumulation is prevented, and the annular iron core winding is protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to voltage regulator technical field especially relates to a cascade voltage regulator. BACKGROUND

[0002] Voltage regulator is a kind of device for adjusting voltage in circuit, it can stabilize input voltage on a fixed output voltage value.Voltage regulator is usually composed of a voltage stabilizing circuit and a feedback loop.Voltage stabilizing circuit is the most critical part in voltage regulator, it can increase or decrease output current as required to keep output voltage constant.Feedback loop is used to monitor output voltage and compare it with reference voltage to control the work of voltage stabilizing circuit.

[0003] The working principle of voltage regulator is to realize the stability of voltage by controlling resistance or inductance in circuit, thereby protecting electrical equipment from voltage fluctuation.Voltage regulator can be contact type autotransformer, changes output voltage by sliding brush on input coil, or uses induction voltage regulator, adjusts output voltage by changing angular displacement between stator and rotor.

[0004] Voltage regulator is widely used in various fields, including electric furnace industry, mechanical equipment, glass industry, automobile industry, energy-saving lighting, chemical industry, etc.They are used in scientific research, experiment, detection, heating and heat preservation, soft start, etc.Provide different voltage for load and can linearly regulate voltage under power-on condition.

[0005] Generally speaking, the iron core winding of voltage regulator is arranged in the shell, and a large amount of heat will appear in the shell under the condition of power-on, in order to avoid the influence on the normal work of iron core winding, a large number of heat dissipation grooves are arranged on the shell for heat dissipation, so that the dust in the air will enter the shell through the heat dissipation grooves under the condition of non-working of voltage regulator, and then the dust will adhere to the iron core winding.

[0006] Therefore, a cascade voltage regulator is proposed to solve or alleviate the above problems. UTILITY MODEL CONTENT

[0007] The utility model aims at solving the shortcomings in the prior art and provides a cascade voltage regulator.

[0008] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0009] A kind of cascade voltage regulator, including shell, annular core winding being arranged in shell, rotary knob being arranged in the top surface of shell, rotating block being fixedly connected in the bottom surface of rotary knob and being penetrated to shell, and rotating shaft being fixedly connected in the bottom surface of rotating block, the lower end of the rotating shaft is rotatably arranged with the top surface of annular core winding, air guide assembly is arranged on the rotating shaft below rotating block, a plurality of heat dissipation grooves are opened in the outer peripheral wall of the shell and are communicated with the inside of shell, the heat dissipation grooves are openably arranged, when the air guide assembly works, the heat dissipation grooves are closed when the air guide assembly stops working.

[0010] Preferably, the top surface of the shell is provided with a rotating groove, the rotating block is rotatably connected in the rotating groove, the inner top surface of the shell is fixedly connected with a rotating sleeve, the inner circle of the rotating sleeve is coaxially communicated with the rotating groove, and the rotating block is also rotatably connected in the rotating sleeve.

[0011] Preferably, the air guide assembly comprises a driving part and a fan part rotatably arranged on the rotating shaft, the driving part is arranged on the bottom surface of the rotating sleeve, and the driving part drives the fan part to rotate on the rotating shaft.

[0012] Preferably, the driving part comprises a stator winding fixedly connected with the bottom surface of the rotating sleeve and coaxially arranged.

[0013] Preferably, the fan part comprises a bearing inner ring fixedly connected with the outer circle of the rotating shaft, a bearing outer ring sleeved outside the bearing inner ring, a plurality of rolling balls rotatably arranged between the bearing inner ring and the bearing outer ring, a plurality of fan blades fixedly connected with the bearing outer ring, and a rotor magnetic sheet fixedly connected with the outer peripheral wall of the bearing outer ring and located between adjacent fan blades.

[0014] Preferably, the inner top surface of the heat dissipation groove is fixedly connected with a soft shielding sheet closing the opening of the heat dissipation groove.

[0015] Preferably, the outer circle of the rotary knob is fixedly connected with a plurality of convex strips arranged at intervals, the bottom surface of the shell is fixedly connected with a plurality of supporting legs, and the annular core winding is fixedly connected with the inner bottom surface of the shell through connecting bolts.

[0016] The utility model has the following beneficial effects:

[0017] In practical application, only current is applied to the annular core winding, and the stator winding connected in series with the annular core winding can generate a magnetic field, the magnetic field makes the rotor magnetic sheet cut the magnetic induction lines, drives the bearing outer ring to roll, and further drives the fan blades to rotate, which promotes the discharge of hot air in the shell, and opens and closes the heat dissipation groove through the swing of the soft shielding sheet. When the voltage regulator stops working, the fan blades stop rotating, the soft shielding sheet naturally droops under the action of gravity, closes the heat dissipation groove, prevents dust from accumulating on the annular core winding, and ensures the normal operation and maintenance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0022] 1. Casing; 2. Support feet; 3. Heat sink; 4. Soft shielding sheet; 5. Knob; 6. Raised strip; 7. Connecting bolts; 8. Ring core winding; 9. Rotor sleeve; 10. Rotor block; 11. Stator winding; 12. Rotating shaft; 13. Bearing inner ring; 14. Ball bearing; 15. Bearing outer ring; 16. Fan blades; 17. Rotor magnet. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0026] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, or is the orientation or positional relationship commonly used when the utility model product is used, or is the orientation or positional relationship commonly understood by those skilled in the art, and is merely for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0027] In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0028] In the description of the utility model, it is also necessary to explain that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be broadly understood, 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, it can be the communication inside two elements, the above-mentioned terms in the utility model can be understood according to the specific meaning in the utility model by the ordinary skilled in the art.

[0029] A series voltage regulator, as shown in Figures 1-3 Fig. 1, comprises a casing 1, an annular core winding 8 fixedly connected to the inner bottom surface of the casing 1 through connecting bolts 7, a rotating knob 5 arranged on the top surface of the casing 1, a rotating block 10 fixedly connected to the bottom surface of the rotating knob 5 and penetrating into the casing 1, and a rotating shaft 12 fixedly connected to the bottom surface of the rotating block 10, the outer circle of the rotating knob 5 is integrally formed with a plurality of spaced convex strips 6, and the bottom surface of the casing 1 is fixedly connected with a plurality of supporting legs 2.

[0030] A rotating groove is formed in the top surface of the casing 1, the rotating block 10 is rotatably connected in the rotating groove, the inner top surface of the casing 1 is fixedly connected with a rotating sleeve 9, the inner circle of the rotating sleeve 9 is coaxially communicated with the rotating groove, the rotating block 10 is also rotatably connected in the rotating sleeve 9, the lower end of the rotating shaft 12 is rotatably arranged on the top surface of the annular core winding 8, the air guiding assembly is arranged on the rotating shaft 12 below the rotating block 10, a plurality of heat dissipation grooves 3 are formed in the outer peripheral wall of the casing 1 and are communicated with the inside of the casing 1, the heat dissipation grooves 3 are openably and closably arranged, specifically, the inner top surface of the heat dissipation groove 3 is fixedly connected with a soft shielding piece 4 made of plastic material, which closes the opening of the heat dissipation groove 3, when the air guiding assembly works, the heat dissipation groove 3 is openably arranged, and when the air guiding assembly stops working, the heat dissipation groove 3 is closed.

[0031] The air guiding assembly comprises a driving part and a fan part rotating on the rotating shaft 12, the driving part is arranged on the bottom surface of the rotating sleeve 9, the driving part drives the fan part to rotate on the rotating shaft 12, the driving part comprises the stator winding 11 coaxially arranged on the bottom surface of the rotating sleeve 9, the fan part comprises the bearing inner ring 13 fixedly connected on the outer ring of the rotating shaft 12, the bearing outer ring 15 sleeved on the outside of the bearing inner ring 13, the plurality of rolling balls 14 rotating between the bearing inner ring 13 and the bearing outer ring 15, the plurality of fan blades 16 fixedly connected on the bearing outer ring 15, and the rotor magnetic sheet 17 fixedly connected on the outer circumferential wall of the bearing outer ring 15 and located between the adjacent fan blades 16.

[0032] In actual application, only the annular core winding 8 as the driving part is electrified, the annular core winding 8 generates a magnetic field, and the rotor magnetic sheet 17 cuts the magnetic induction lines in the magnetic field, so that the bearing outer ring 15 can rotate relative to the bearing inner ring 13 through the rolling balls 14, and the bearing outer ring 15 can drive the fan blades 16 as the fan part to rotate, the fan blades 16 guide the air to flow, so that the air can be blown out from the casing 1, the soft shielding sheet 4 is blown by the air, so that the heat dissipation groove 3 is switched from the closed state to the open state, and then the hot air in the casing 1 is guided away, so that the heat generated by the annular core winding 8 can be treated, and when the voltage regulator stops working, the air guiding assembly is not electrified, so that the soft shielding sheet 4 made of plastic material can fall under the action of gravity, and the heat dissipation groove 3 is resealed, so that the dust in the air does not adhere to the annular core winding 8 and affect the work.

[0033] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cascade voltage regulator, characterized by, The utility model relates to a kind of air guide components of rotary knob, including shell (1), annular iron core winding (8) being arranged in shell (1), rotary knob (5) being arranged in the top surface of shell (1), rotating block (10) being fixedly connected in the bottom surface of rotary knob (5) and being penetrated to shell (1) inside, and rotating shaft (12) being fixedly connected in the bottom surface of rotating block (10), the lower end of the rotating shaft (12) is rotatably arranged with annular iron core winding (8) top surface, air guide assembly is arranged on the rotating shaft (12) below rotating block (10), and the outer circumferential wall of shell (1) is provided with several heat dissipation grooves (3) being communicated with its inside, the heat dissipation grooves (3) can be open and closed arrangement, when air guide assembly works, the heat dissipation grooves (3) are open arrangement, when air guide assembly stops, the heat dissipation grooves (3) are closed arrangement.

2. A cascade voltage regulator according to claim 1, characterized in that The top surface of the shell (1) is provided with a rotating groove, and the rotating block (10) is rotatably connected in the rotating groove.

3. A series voltage regulator as claimed in claim 2, wherein The air guide assembly includes a driving portion and a fan portion rotatably arranged on the rotating shaft (12).

4. A series voltage regulator as claimed in claim 3, wherein The driving portion includes a stator winding (11) fixedly connected to the bottom surface of the rotating sleeve (9) and coaxially arranged.

5. A cascade voltage regulator as claimed in claim 3, wherein, The fan portion includes a bearing inner ring (13) fixedly connected to the outer ring of the rotating shaft (12), a bearing outer ring (15) sleeved outside the bearing inner ring (13), a plurality of rolling balls (14) rotatably arranged between the bearing inner ring (13) and the bearing outer ring (15), a plurality of fan blades (16) fixedly connected to the bearing outer ring (15), and a rotor magnetic sheet (17) fixedly connected to the outer circumferential wall of the bearing outer ring (15) and located between adjacent fan blades (16).

6. A cascade voltage regulator as claimed in claim 1, wherein, The inner top surface of the heat dissipation groove (3) is fixedly connected with a soft shielding sheet (4) that closes the opening of the heat dissipation groove (3).

7. A cascade voltage regulator as claimed in claim 1, wherein, The outer ring of the rotary knob (5) is fixedly connected with a plurality of convex strips (6) arranged at intervals, the bottom surface of the shell (1) is fixedly connected with a plurality of supporting legs (2), and the annular iron core winding (8) is fixedly connected to the inner bottom surface of the shell (1) by a connecting bolt (7).

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