CN214093232U

CN214093232U - Electric actuator with automatic power-off and overload protection functions

Info

Publication number: CN214093232U
Application number: CN202023255304.2U
Authority: CN
Inventors: 李欣荣
Original assignee: Tianjin Haoyang Automation Equipment Co ltd
Current assignee: Tianjin Haoyang Automation Equipment Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-08-31
Anticipated expiration: 2030-12-29

Abstract

The utility model provides an electric actuator with auto-power-off and overload protection function belongs to the electric actuator field. The electric actuator with the automatic power-off and overload protection functions comprises an electric actuator body and a heat dissipation assembly. The circulating pipe penetrates through the electric actuator body, two ends of the circulating pipe are respectively communicated with the upper end and the lower end of the liquid tank, and one end of the circulating pipe is connected with the pump body; the circulating pipe runs through inside the electric actuator body, carries out thermal giving off to electric actuator body inside, and then reaches the effect of heat dissipation cooling, adopts liquid cooling, need not to set up the thermovent on electric actuator body surface, and then inside effectively reducing dust and moisture entering electric actuator body, has reduced the possibility of internal plant short circuit when improving the radiating effect, has reduced the fault rate, reduces the maintenance cost, the life of extension equipment.

Description

Electric actuator with automatic power-off and overload protection functions

Technical Field

The utility model relates to an electric actuator field particularly, relates to an electric actuator with auto-power-off and overload protection function.

Background

Currently, electric actuators are drive devices that provide linear or rotational motion, using some type of drive energy and operating under some type of control signal. Actuators use liquid, gas, electricity or other energy sources and convert them into drive action by motors, cylinders or other means. The basic types of the three-phase driving mode. The basic actuator is used to drive the valve to a fully open or fully closed position. In recent years, the electric actuator is rapidly developed due to the fact that new technologies, new achievements and mature experiences of microcomputer control, micromachines and the like are widely adopted and absorbed, the microcomputer type electric actuator with a structure mode of 'microcomputer + follow-up system' is widely used, the microprocessor finishes signal transmission, adjustment parameter switching, state indication and control quantity output, performance of an adjustment system is enhanced, and the like, a motor and electric equipment in the electric actuator with the functions of automatic power off and overload protection need to generate heat when running, and if the adjustment is too frequent, the motor is easily overheated, and heat protection is generated;

the existing electric actuator needs to be provided with a heat dissipation port on the surface of a shell in order to achieve a good heat dissipation effect, so that dust and moisture enter the interior of the shell, short circuit of equipment is caused, the dust covers the surface of the equipment to influence the heat dissipation effect, and equipment is caused to break down.

SUMMERY OF THE UTILITY MODEL

In order to compensate the above deficiency, the utility model provides an electric actuator with auto-power-off and overload protection function aims at improving the poor problem of current electric actuator radiating effect.

The utility model discloses a realize like this:

the utility model provides an electric actuator with auto-power-off and overload protection function, including electric actuator body and radiator unit.

The heat dissipation assembly comprises a liquid tank and a circulating pipe, the circulating pipe penetrates through the interior of the electric actuator body, two ends of the circulating pipe are respectively communicated with the upper end and the lower end of the liquid tank, and one end of the circulating pipe is connected with a pump body.

In an embodiment of the present invention, the electric actuator body includes a housing and a spindle, the spindle is installed at the bottom of the housing, and the liquid tank is fixed at the top of the housing.

In an embodiment of the utility model, the main shaft upper end cover is equipped with the organ pipe, organ pipe upper end with casing bottom fixed connection, the line hole surface mounting glan head that the casing bottom was seted up.

The utility model discloses an in one embodiment, still include the mounting bracket, the mounting bracket includes base, first backup pad and second backup pad, the mounting hole has been seted up on the base surface, first backup pad with second backup pad slip joint, first backup pad lower extreme with base fixed connection, second backup pad upper end with casing fixed connection, second backup pad lower extreme spiro union has the fastening screw who is used for locking first backup pad.

The utility model discloses an in one embodiment, the liquid tank is closed liquid reserve tank, the filling opening has been seted up to liquid tank upper end lateral wall, filling opening port spiro union has the end cap.

The utility model discloses an in the embodiment, the atmospheric pressure balance mouth has been seted up at the liquid tank top, the port cover has waterproof ventilated membrane on the atmospheric pressure balance mouth.

The utility model discloses an in the embodiment, the liquid tank surface inlays and is equipped with the semiconductor refrigeration piece, the refrigeration face setting of semiconductor refrigeration piece is in inside the liquid tank, the face setting that heats of semiconductor refrigeration piece is in the liquid tank is outside.

The utility model discloses an in the embodiment, liquid case surface fixed has radiating fin, the face of heating of semiconductor refrigeration piece with radiating fin surface laminating, the inside heat conduction piece that is provided with of liquid case, the one end of heat conduction piece with the refrigeration face fixed connection of semiconductor refrigeration piece.

In one embodiment of the present invention, the first port of the circulation tube communicates with the upper end of the liquid tank, the second port of the circulation tube communicates with the bottom of the liquid tank, and the drain port of the pump body is connected to the second port of the circulation tube.

In an embodiment of the present invention, the pump body is fixedly installed at the bottom of the liquid tank, the circulation pipe is arranged in parallel, and a plurality of shunt pipes are connected between the drain port of the pump body and the second port of the circulation pipe.

The utility model has the advantages that: the utility model discloses an electric actuator who obtains through above-mentioned design has auto-power-off and overload protection function, when using, the liquid tank is equipped with the coolant liquid, the both ends of circulating pipe communicate with the upper and lower both ends of liquid tank respectively, through starting the pump body that one end of circulating pipe is connected, drive the coolant liquid and circulate between circulating pipe and liquid tank, the circulating pipe runs through inside the electric actuator body, the coolant liquid absorbs the heat that produces when passing through inside the electric actuator body, carry out the inside diffusion of heat to the inside of electric actuator body, and then reach the effect of heat dissipation cooling, adopt liquid cooling, need not to set up the thermovent on electric actuator body surface, and then effectively reduce dust and moisture entering inside the electric actuator body, reduced the possibility of internal plant short circuit when improving the radiating effect, reduced the fault rate, reduce the maintenance cost, the service life of the equipment is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic front view structure diagram provided by an embodiment of the present invention;

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

fig. 3 is a schematic view of an internal structure of a liquid tank according to an embodiment of the present invention;

fig. 4 is a schematic view of a liquid tank overlooking and splitting structure provided by the embodiment of the present invention.

In the figure: 100. an electric actuator body; 110. a housing; 111. a glan head; 130. a main shaft; 131. an organ tube; 150. a mounting frame; 151. a base; 153. a first support plate; 155. a second support plate; 300. a heat dissipating component; 310. a liquid tank; 311. a liquid filling port; 313. an air pressure balancing port; 315. a semiconductor refrigeration sheet; 317. a heat dissipating fin; 319. a heat conducting block; 330. a circulation pipe; 350. a pump body; 351. and (4) dividing the tube.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the utility model provides a. Embodiments, all other embodiments obtained by a person skilled in the art without any inventive step are within the scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: an electric actuator with automatic power-off and overload protection functions comprises an electric actuator body 100 and a heat dissipation assembly 300.

Referring to fig. 1-3, in this embodiment, an accordion pipe 131 is sleeved on the upper end of the spindle 130, the upper end of the accordion pipe 131 is fixedly connected to the bottom of the housing 110, a glan head 111 is mounted on a surface of a wire hole formed in the bottom of the housing 110, and the connection between the spindle 130 and the housing 110 is formed by the accordion pipe 131 to seal the connection position and prevent moisture or dust from entering;

in other embodiments, the mounting rack 150 further comprises a mounting rack 150, the mounting rack 150 comprises a base 151, a first supporting plate 153 and a second supporting plate 155, a mounting hole is formed in the surface of the base 151, the first supporting plate 153 is slidably clamped with the second supporting plate 155, the lower end of the first supporting plate 153 is fixedly connected with the base 151, the upper end of the second supporting plate 155 is fixedly connected with the housing 110, and a fastening screw for locking the first supporting plate 153 is screwed to the lower end of the second supporting plate 155;

referring to fig. 2-4, the heat dissipation assembly 300 includes a liquid tank 310 and a circulation pipe 330, the circulation pipe 330 penetrates through the electric actuator body 100, two ends of the circulation pipe 330 are respectively communicated with the upper end and the lower end of the liquid tank 310, and one end of the circulation pipe 330 is connected to a pump 350; a temperature sensor and a single chip microcomputer are fixedly mounted in the electric actuator body 100, a signal output end of the temperature sensor is electrically connected with a signal receiving end of the single chip microcomputer, and electric control ends of the pump body 350 and the semiconductor chilling plate 315 are respectively electrically connected with an electric control output end of the single chip microcomputer.

In this embodiment, the electric actuator body 100 includes a housing 110, a main shaft 130, and a driving device installed inside the housing 110, wherein the main shaft 130 is installed at the bottom of the housing 110, and the liquid tank 310 is fixed at the top of the housing 110; wherein, casing 110 includes upper housing and lower casing, upper housing passes through the bolt joint to be fixed casing upper end down, circulating pipe 330 sets up the dismouting of casing 110 of being convenient for is in upper housing top.

It should be noted that the liquid tank 310 is a closed liquid storage tank, a liquid adding port 311 is formed in the side wall of the upper end of the liquid tank 310, and a plug is screwed to a port of the liquid adding port 311, so that cooling liquid can be supplemented into the liquid tank 310 conveniently.

In some embodiments, the top of the liquid tank 310 is provided with an air pressure balancing port 313, and an upper port of the air pressure balancing port 313 is covered with a waterproof and breathable film for balancing the pressure difference between the inside of the liquid tank 310 and the outside.

In other embodiments, the surface of the liquid tank 310 is embedded with a semiconductor refrigeration sheet 315, a refrigeration surface of the semiconductor refrigeration sheet 315 is disposed inside the liquid tank 310, and a heating surface of the semiconductor refrigeration sheet 315 is disposed outside the liquid tank 310.

It should be noted that the external surface of the liquid tank 310 is fixed with the heat dissipation fins 317, the heating surface of the semiconductor refrigeration sheet 315 is attached to the surface of the heat dissipation fins 317, the inside of the liquid tank 310 is provided with the heat conduction block 319, one end of the heat conduction block 319 is fixedly connected with the refrigeration surface of the semiconductor refrigeration sheet 315, the added semiconductor refrigeration sheet 315 is used for cooling, the heat dissipation effect is accelerated, and the added heat conduction block 319 improves the heat transfer effect.

In a specific implementation, a first port of the circulation tube 330 communicates with the upper end of the tank 310, a second port of the circulation tube 330 communicates with the bottom of the tank 310, and the drain port of the pump body 350 is connected to the second port of the circulation tube 330.

Specifically, the pump body 350 is fixedly installed at the bottom of the liquid tank 310, the plurality of circulation pipes 330 are arranged in parallel, and a diversion pipe 351 is connected between a water discharge port of the pump body 350 and a second port of the circulation pipe 330.

The working principle of the electric actuator with the functions of automatic power off and overload protection is as follows: during the use, with the coolant liquid that is equipped with in the liquid tank 310, the both ends of circulating pipe 330 communicate with upper and lower both ends of liquid tank 310 respectively, pump body 350 through the one end connection of start-up circulating pipe 330, it flows to drive the coolant liquid circulation between circulating pipe 330 and liquid tank 310, circulating pipe 330 runs through inside electric actuator body 100, the coolant liquid absorbs the heat that produces when passing through inside electric actuator body 100, carry out thermal giveaway to inside electric actuator body 100, and then reach the effect of heat dissipation cooling, adopt liquid cooling, need not to set up the thermovent on electric actuator body 100 surface, and then effectively reduce dust and moisture and get into inside electric actuator body 100, the possibility of interior equipment short circuit has been reduced when improving the radiating effect, the fault rate has been reduced, reduce the maintenance cost, the life of extension equipment.

It should be noted that the specific model specifications of the temperature sensor, the single-chip microcomputer, the pump body 350, and the semiconductor chilling plate 315 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art in the field, so detailed description is omitted.

The power supply and the principle of the temperature sensor, the single-chip microcomputer, the pump block 350 and the semiconductor chilling plate 315 will be clear to those skilled in the art and will not be described in detail herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric actuator with automatic power-off and overload protection functions is characterized by comprising

An electric actuator body (100);

the heat dissipation assembly (300) comprises a liquid tank (310) and a circulating pipe (330), the circulating pipe (330) penetrates through the interior of the electric actuator body (100), two ends of the circulating pipe (330) are communicated with the upper end and the lower end of the liquid tank (310) respectively, and one end of the circulating pipe (330) is connected with a pump body (350).

2. The electric actuator with the automatic power-off and overload protection functions as claimed in claim 1, wherein the electric actuator body (100) comprises a housing (110) and a main shaft (130), the main shaft (130) is mounted at the bottom of the housing (110), and the liquid tank (310) is fixed at the top of the housing (110).

3. The electric actuator with the functions of automatic power off and overload protection as claimed in claim 2, wherein an organ tube (131) is sleeved on the upper end of the main shaft (130), the upper end of the organ tube (131) is fixedly connected with the bottom of the housing (110), and a glan head (111) is installed on the surface of a wire hole formed in the bottom of the housing (110).

4. The electric actuator with the automatic power off and overload protection functions as claimed in claim 3, further comprising a mounting bracket (150), wherein the mounting bracket (150) comprises a base (151), a first supporting plate (153) and a second supporting plate (155), the surface of the base (151) is provided with mounting holes, the first supporting plate (153) is slidably clamped with the second supporting plate (155), the lower end of the first supporting plate (153) is fixedly connected with the base (151), the upper end of the second supporting plate (155) is fixedly connected with the housing (110), and the lower end of the second supporting plate (155) is screwed with a fastening screw for locking the first supporting plate (153).

5. The electric actuator with the automatic power-off and overload protection functions as claimed in claim 1, wherein the liquid tank (310) is a closed liquid tank, a liquid filling port (311) is formed in a side wall of an upper end of the liquid tank (310), and a plug is screwed to a port of the liquid filling port (311).

6. The electric actuator with automatic power-off and overload protection functions as claimed in claim 1, wherein a gas pressure balancing port (313) is formed in the top of the liquid tank (310), and an upper port of the gas pressure balancing port (313) is covered with a waterproof gas permeable membrane.

7. The electric actuator with the automatic power-off and overload protection functions as claimed in claim 1, wherein a semiconductor cooling plate (315) is embedded in the surface of the liquid tank (310), a cooling surface of the semiconductor cooling plate (315) is arranged inside the liquid tank (310), and a heating surface of the semiconductor cooling plate (315) is arranged outside the liquid tank (310).

8. The electric actuator with the automatic power off and overload protection functions as claimed in claim 7, wherein heat dissipation fins (317) are fixed on the outer surface of the liquid tank (310), the heating surface of the semiconductor chilling plate (315) is attached to the surfaces of the heat dissipation fins (317), a heat conduction block (319) is arranged inside the liquid tank (310), and one end of the heat conduction block (319) is fixedly connected with the chilling surface of the semiconductor chilling plate (315).

9. The electric actuator with automatic power-off and overload protection functions as claimed in claim 1, wherein a first port of the circulation tube (330) is communicated with an upper end of the liquid tank (310), a second port of the circulation tube (330) is communicated with the bottom of the liquid tank (310), and a drain port of the pump body (350) is connected with the second port of the circulation tube (330).

10. The electric actuator with automatic power-off and overload protection functions as claimed in claim 9, wherein the pump body (350) is fixedly mounted at the bottom of the liquid tank (310), the circulating pipe (330) is arranged in parallel, and a shunt pipe (351) is connected between a water outlet of the pump body (350) and a second port of the circulating pipe (330).