CN212628682U

CN212628682U - Temperature control device of H-bridge cascaded multilevel converter

Info

Publication number: CN212628682U
Application number: CN202021644113.2U
Authority: CN
Inventors: 刘建政; 李杰夫; 钱晓波
Original assignee: Zhangjiagang Smartgrid Flexible Power Transmission And Distribution Technology Institute Co ltd
Current assignee: Zhangjiagang Smartgrid Flexible Power Transmission And Distribution Technology Institute Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-02-26
Anticipated expiration: 2030-08-10

Abstract

The utility model discloses a temperature control device of an H-bridge cascade multilevel converter, which comprises a control box and a box door, wherein the box door is arranged on the outer wall of the front end of the control box, the outer wall of the lower end of the control box is provided with a base, the inner wall of the upper end of the control box is provided with a motor, the outer wall of the lower end of the motor is provided with fan blades, the control box on the lower side of the fan blades is provided with a mounting rack, after the temperature controller is fixed, a contact post on a transverse plate can be tightly attached to a temperature sensor through the action of a spring, meanwhile, a protective shell protects the temperature sensor, a fixed post and the contact post, the inaccurate measurement of temperature values caused by a large amount of dust is avoided, the temperature controller can also set a preset temperature, when the preset temperature is reached, the temperature control box can alarm or the fan blades can, so that hot air flows out through the heat dissipation holes on the two sides of the control box, and fire disasters caused by overhigh temperature are prevented.

Description

Temperature control device of H-bridge cascaded multilevel converter

Technical Field

The utility model belongs to the technical field of the temperature control is relevant, concretely relates to H bridge cascade multilevel converter's temperature control device.

Background

The temperature controller is a series of automatic control elements which are physically deformed in a switch according to the temperature change of a working environment so as to generate certain special effects and generate on or off actions, and is also called a temperature control switch, a temperature protector and a temperature controller, and is called as the temperature controller for short. Or the temperature protector transmits the temperature to the temperature controller, the temperature controller sends out a switch command, thereby controlling the operation of the equipment to achieve the ideal temperature and energy-saving effect, the application range of the temperature controller is very wide, the temperature controller is applied to a plurality of products such as household appliances, motors, refrigeration or heating and the like according to different types of temperature controllers, the working principle is that the temperature sensor automatically samples and immediately monitors the environmental temperature, when the environmental temperature is higher than a control set value, a control circuit is started, a control return difference can be set, if the temperature is still rising, when a set over-limit alarm temperature point is reached, an over-limit alarm function is started, when the controlled temperature cannot be effectively controlled, the equipment can be stopped to continue to operate through a tripping function in order to prevent the equipment from being damaged, the temperature controller is mainly applied to various high-low voltage switch cabinets, dry type transformers and the like used in, Box substations and other related areas of temperature use.

The prior temperature control device technology has the following problems: the temperature control device used on the H-bridge cascaded multilevel converter at present mainly controls the temperature by monitoring the temperature, the detected temperature is low, the temperature value is inaccurate, the H-bridge cascaded multilevel converter is easy to cause short circuit, meanwhile, the temperature can not be reduced, and a fire disaster is easy to cause.

Disclosure of Invention

An object of the utility model is to provide a temperature control device of H bridge cascade multilevel converter to the temperature that provides present temperature control device and detect in solving above-mentioned background art is on the low side the problem of unable lowering temperature again simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: a temperature control device of an H-bridge cascade multilevel converter comprises a control box and a box door, wherein the box door is arranged on the outer wall of the front end of the control box, a base is arranged on the outer wall of the lower end of the control box, a motor is arranged on the inner wall of the upper end of the control box, fan blades are arranged on the outer wall of the lower end of the motor, a mounting frame is arranged on the control box at the lower side of the fan blades, a temperature controller is arranged on the outer wall of the upper end of the mounting frame, a transverse plate is arranged on the control box at the lower side of the temperature controller, a fixing column is arranged on the outer wall of the upper end of the transverse plate, an upper mounting plate is arranged on the control box at the lower side of the transverse plate, the upper mounting plate and the transverse plate are fixedly connected through a connecting plate, a lower mounting plate is arranged, the temperature controller is characterized in that a protective shell is arranged on the outer wall of the lower end of the temperature controller, a temperature sensor is arranged on the inner wall of the upper end of the protective shell, a contact column is sleeved outside the fixed column, the fixed column and the contact column are fixedly connected through a spring, and the temperature controller and the motor are electrically connected through an external power supply.

Preferably, the inside transparent window that is provided with of case door front end outer wall, be provided with the support on the outer wall of base lower extreme.

Preferably, the connecting plate and the transverse plate are both made of aluminum materials.

Preferably, the control box behind the dust screen is provided with a heat dissipation hole.

Preferably, an opening is formed in the outer wall of the lower end of the protective shell, and the temperature controller is fixedly connected with the mounting frame through a nut.

Preferably, the inner portion of the outer wall of the upper end of the fixing column is provided with a round hole, and the inner portion of the outer wall of the lower end of the contact column is also provided with a round hole.

Compared with the prior temperature control device technology, the utility model provides a temperature control device of H bridge cascade multilevel converter possesses following beneficial effect:

the temperature control device of the utility model mainly monitors the control box through the temperature controller, and the electronic device inside the control box enters the construction site through the upper mounting plate and the lower mounting plate, the upper mounting plate and the lower mounting plate are not in direct contact with the control box, and the temperature controller is not in contact with the control box, thus reducing the loss of heat in the conduction process, avoiding the lower measured temperature, having higher measured speed, avoiding the interference of the temperature on the outer wall of the control box, and the upper mounting plate, the lower mounting plate and the mounting frame are thermal insulation materials, reducing the interference caused by other heat, after the temperature controller is fixed, the contact column on the transverse plate can be tightly jointed with the temperature sensor on the temperature controller through the action of the spring, meanwhile, the protective shell is also used for protecting the temperature sensor, the fixed column and the contact column, avoiding the inaccurate measurement of temperature numerical value caused by a large amount of dust, and this temperature controller can also set for the predetermined temperature, when reaching the predetermined temperature, can report to the police or start the flabellum rotation, dispel the heat to the temperature that the control box produced the inside device of control box for the hot-air flows away through the louvre of control box both sides, prevents that the fire from appearing in the high temperature.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic diagram of a front plane structure of a temperature control device of an H-bridge cascaded multilevel converter according to the present invention;

fig. 2 is a schematic view of a side plane structure of the control box according to the present invention;

fig. 3 is a schematic view of a front-side analyzed plane structure of the temperature control device provided by the present invention;

in the figure: 1. a control box; 2. a temperature controller; 3. a mounting frame; 4. an upper mounting plate; 5. a lower mounting plate; 6. a base; 7. a motor; 8. a fan blade; 9. fixing a column; 10. a connecting plate; 11. a transverse plate; 12. a box door; 13. a dust screen; 14. a handle; 15. a contact post; 16. a protective shell; 17. a spring; 18. a temperature sensor; 19. a display screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a temperature control device of an H-bridge cascade multilevel converter comprises a control box 1 and a box door 12, wherein the box door 12 is arranged on the outer wall of the front end of the control box 1, the outer wall of the lower end of the control box 1 is provided with a base 6, the inner wall of the upper end of the control box 1 is provided with a motor 7, the outer wall of the lower end of the motor 7 is provided with a fan blade 8, the control box 1 on the lower side of the fan blade 8 is provided with a mounting rack 3, the outer wall of the upper end of the mounting rack 3 is provided with a temperature controller 2, the control box 1 on the lower side of the temperature controller 2 is provided with a transverse plate 11, the outer wall of the upper end of the transverse plate 11 is provided with a fixed column 9, the control box 1 on the lower side of the transverse plate 11 is provided with an upper mounting plate 4, the upper mounting plate 4 and the transverse plate 11, inside display screen 19 that is provided with of 2 front end outer walls of temperature controller, be provided with protecting crust 16 on the 2 lower extreme outer walls of temperature controller, be provided with temperature sensor 18 on the inner wall of protecting crust 16 upper end, contact post 15 has been cup jointed to the outside of fixed column 9, and fixed column 9 and contact post 15 pass through spring 17 fixed connection, and temperature controller 2 and motor 7 are all through external power source electric connection.

A temperature control device of an H-bridge cascade multilevel converter comprises a control box 1 and a box door 12, wherein a transparent window is arranged inside the outer wall of the front end of the box door 12, a support is arranged on the outer wall of the lower end of a base 6, so that the temperature displayed on a temperature controller 2 and a display screen 19 can be observed through the transparent window, an operator can conveniently know the condition inside the control box 1, the support can prevent the base 6 from rotting and the like, a connecting plate 10 and a transverse plate 11 are both made of aluminum materials, the aluminum materials have good thermal conductivity, the temperature inside the control box 1 can be easily conducted to the temperature controller 2, a radiating hole is arranged on the control box 1 at the rear side of a dustproof net 13, when the temperature inside the control box 1 rises, a fan blade 8 can be driven to rotate through a motor 7, the heat dissipation of the control box 1 is facilitated, an opening is arranged inside the outer wall of the, can avoid temperature controller 2 to have too much contact with control box 1 like this, the temperature value deviation that prevents to record is great, protective housing 16 can protect temperature sensor 18 simultaneously, avoid dust etc. to influence the normal work of temperature controller 2, the inside round hole that is provided with of fixed column 9 upper end outer wall, the inside round hole that also is provided with of contact column 15 lower extreme outer wall, make like this contact column 15 can keep closely laminating state with temperature sensor 18, and the temperature value that records also can be more accurate.

The utility model discloses a theory of operation and use flow: after the temperature control device is installed, the temperature control device is mainly measured and controlled by the temperature controller 2, before the temperature controller 2 is used, the temperature controller 2 and other devices inside the control box 1 need to be installed firstly, when the devices are installed, the devices can be installed on the upper installation plate 4 and the lower installation plate 5 by using nuts, the upper installation plate 4 and the lower installation plate 5 are not directly contacted with the control box 1 but installed on the inner wall of the control box 1 by a fixing frame, the upper installation plate 4 and the lower installation plate 5 are installed at the front end of the fixing frame in a welding mode, then the temperature controller 2 is installed on the installation frame 3, the temperature controller 2 is also fixed by the nuts, meanwhile, the contact column 15 can be tightly attached to the temperature sensor 18 on the temperature controller 2 by the action of the spring 17, meanwhile, the protective shell 16 is also used for protecting the temperature sensor 18, the fixed column 9 and the contact column 15, avoid a large amount of dusts to cause temperature value to measure inaccurately, can adjust at the button on temperature controller 2 next time, make temperature controller 2 be in operating condition, the temperature that control box 1 during operation produced can be conducted on connecting plate 10, conduct again on fixed column 9 by connecting plate 10, then conduct on contact post 15 through fixed column 9, conduct on temperature sensor 18 at last, turn into digital display again on display screen 19, if temperature controller 2 records when the temperature is higher than predetermined temperature, then starter motor 7 work, the model of this motor 7 is Y60, and motor 7 drive flabellum 8 is rotatory, dispel the heat to the temperature that the inside device of control box 1 produced, make the louvre of hot-air process control box 1 both sides flow away, prevent that the high temperature from causing the condition of conflagration.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a temperature control device of H bridge cascade multilevel converter, includes control box (1) and chamber door (12), its characterized in that: the box door (12) is installed on the outer wall of the front end of the control box (1), the outer wall of the lower end of the control box (1) is provided with a base (6), the inner wall of the upper end of the control box (1) is provided with a motor (7), the outer wall of the lower end of the motor (7) is provided with fan blades (8), the control box (1) on the lower side of the fan blades (8) is provided with a mounting rack (3), the outer wall of the upper end of the mounting rack (3) is provided with a temperature controller (2), the control box (1) on the lower side of the temperature controller (2) is provided with a transverse plate (11), the outer wall of the upper end of the transverse plate (11) is provided with a fixing column (9), the control box (1) on the lower side of the transverse plate (11) is provided with an upper mounting plate (4), the upper mounting plate (4) and the transverse plate, all be provided with dust screen (13) about control box (1) on the both ends outer wall, be provided with handle (14) on chamber door (12) front end outer wall, inside display screen (19) that is provided with of temperature controller (2) front end outer wall, be provided with protecting crust (16) on temperature controller (2) lower extreme outer wall, be provided with temperature sensor (18) on protecting crust (16) upper end inner wall, contact column (15) have been cup jointed to the outside of fixed column (9), fixed column (9) and contact column (15) pass through spring (17) fixed connection, temperature controller (2) and motor (7) are all through external power source electric connection.

2. The temperature control device of an H-bridge cascaded multi-level converter according to claim 1, characterized in that: a transparent window is arranged in the outer wall of the front end of the box door (12), and a support is arranged on the outer wall of the lower end of the base (6).

3. The temperature control device of an H-bridge cascaded multi-level converter according to claim 1, characterized in that: the connecting plate (10) and the transverse plate (11) are both made of aluminum materials.

4. The temperature control device of an H-bridge cascaded multi-level converter according to claim 1, characterized in that: the control box (1) at the rear side of the dust screen (13) is provided with heat dissipation holes.

5. The temperature control device of an H-bridge cascaded multi-level converter according to claim 1, characterized in that: an opening is formed in the outer wall of the lower end of the protective shell (16), and the temperature controller (2) is fixedly connected with the mounting frame (3) through a nut.

6. The temperature control device of an H-bridge cascaded multi-level converter according to claim 1, characterized in that: the inner portion of the outer wall of the upper end of the fixing column (9) is provided with a round hole, and the inner portion of the outer wall of the lower end of the contact column (15) is also provided with a round hole.