CN218450582U

CN218450582U - Electric heating actuator

Info

Publication number: CN218450582U
Application number: CN202222626149.3U
Authority: CN
Inventors: 黄金良
Original assignee: Zhejiang Xuananju Hvac Technology Co ltd
Current assignee: Zhejiang Xuananju Hvac Technology Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-02-03
Anticipated expiration: 2032-09-30

Abstract

The utility model provides an electric heating actuator belongs to executor technical field. It has solved the problem that current electric heat executor fault rate is high. The electric heating actuator comprises a shell and an electric heating thermal bulb, wherein an installation cavity is formed in the shell, a pushing portion is arranged at the top of the electric heating thermal bulb, the electric heating thermal bulb is fixed to the inner side of the installation cavity, a guide hole is formed in the bottom wall of the shell, a trigger sliding block is arranged in the guide hole in a sliding mode, a linkage seat is arranged at the upper end of the trigger sliding block, a first spring is arranged between the top wall of the installation cavity and the linkage seat in a pressing mode, and the linkage seat keeps a trend of abutting against the pushing portion under the elastic action of the first spring. When the electric heating actuator is powered on, the electric heating thermal bulb pushes the linkage seat to drive the trigger sliding block to move upwards to close the equipment, after the power failure, the linkage seat drives the trigger sliding block to move downwards under the action of elastic force of the spring to open the equipment, and the electric heating thermal bulb is always kept motionless to enable the wiring end to be stably powered on when in use, so that the integral failure rate is reduced.

Description

Electric heating actuator

Technical Field

The utility model belongs to the technical field of the executor, a electric heat executor is related to.

Background

The existing electric heating actuator comprises a shell, an electric heating thermal bulb and a mounting seat, wherein the mounting seat is pressed on the bottom of the shell by a spring, a through hole is formed in the bottom of the shell on the inner side of the mounting seat, the electric heating thermal bulb is installed on the inner side of the mounting seat and positioned above the through hole, a trigger block stretching into the through hole is arranged below the electric heating thermal bulb, the spring is also pressed between the electric heating thermal bulb and the bottom of the shell, the top of the electric heating thermal bulb, namely the deformation part of the electric heating thermal bulb, which can stretch out when being heated, is abutted to the top wall of an inner cavity of the mounting seat under the elastic action of the spring, the deformation part of the electric heating thermal bulb can stretch out after being electrified, and the mounting seat is fixed, so the electric heating thermal bulb can be pushed out downwards, and the trigger block at the bottom of the electric heating thermal bulb can stretch out from the through hole to trigger an external electric control element.

With continuous application and popularization of the electric heating actuator in the market, some defects of the existing electric heating actuator are found, for example, a temperature bulb on the existing electric heating actuator can be broken and not powered after being used for a period of time, a circuit connecting wire of the temperature bulb is found to be loose or broken after being disassembled, the reason that the electric core at a welding point between the connecting wire and the temperature bulb is broken due to frequent up-and-down movement of the electric heating temperature bulb in the using process is guessed to be very large, and if the broken electric core is put on other electric conductors, short circuit can be caused.

Disclosure of Invention

The utility model aims at solving the problems in the prior art and providing an electric heating actuator. The electric heating actuator solves the technical problem that the existing electric heating actuator is high in failure rate.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides an electric heating actuator, includes casing and electric heating thermal bulb, the installation cavity has in the casing, the top of electric heating thermal bulb has promotion portion, its characterized in that, the inboard of installation cavity and the vertical upwards setting of promotion portion above that are fixed to the electric heating thermal bulb, the guiding hole with external intercommunication is seted up to the one side that lies in the electric heating thermal bulb on the diapire of casing, the central line of guiding hole with the axis of promotion portion parallels, the slip is provided with in the guiding hole triggers the slider, the upper end that triggers the slider is equipped with the linkage seat, the linkage seat in promotion portion top just the installation cavity roof and linkage seat between the pressure equipment have spring one, the linkage seat keeps leaning on the trend on the promotion portion under spring effect of spring one.

The electric heating actuator is fixed above a touch button of equipment, the touch button is triggered elastically, namely the touch button is kept in a pressed state and is opened, and the touch button is closed after being released. The trigger slider is abutted against the touch button in the initial state, the trigger slider is in the state of pressing the touch button due to the fact that the spring is pressed against the linkage seat, namely the equipment is in the normally open state, when the electric heating actuator is electrified, the electric heating thermal bulb pushes the linkage seat to lift, the trigger slider is lifted along with the linkage seat, and then the touch button on the equipment is loosened, so that the equipment is shut down.

The electric heating thermal bulb in the electric heating actuator is fixed in the installation cavity and cannot move, the trigger slider is arranged on one side of the electric heating thermal bulb, the linkage seat is additionally arranged on the end part of the structure of the trigger slider through improvement, the linkage seat extends to the position above the pushing part at the top of the thermal bulb, and the linkage seat is pressed and installed with the spring between the linkage seat and the top wall of the shell to ensure that the linkage seat is abutted against the pushing part on the electric heating thermal bulb, so that the pushing part of the electric heating thermal bulb can drive the linkage seat to overcome the spring elasticity to move upwards after being electrified, the trigger slider also moves upwards synchronously, the pushing part on the electric heating thermal bulb descends after being powered off, the linkage seat descends under the action of the spring elasticity to reset the trigger slider and also synchronously moves to reset, and the electric heating thermal bulb is always kept unchanged when the electric heating actuator is controlled to be switched on, the electric wire circuit connected with the linkage seat also can be kept in a stable connection state, and the integral failure rate is reduced.

In the above electric heating actuator, an annular limiting portion protrudes from the bottom wall of the mounting cavity, an electrode plate is fixed on the bottom wall of the mounting cavity, which is located on the inner side of the limiting portion, a wiring end is arranged at the bottom of the electric heating thermal bulb, the electric heating thermal bulb is fixed on the inner side of the limiting portion, and the wiring end is abutted against the electrode plate and is electrically connected with the electrode plate.

This design sets up to be annular spacing portion on the bottom of installation cavity, the electric heat thermal bulb is whole to inlay and establish in spacing portion inboard, be connected with the electrode piece on the inboard casing of spacing portion, the wiring end direct support on the electric heat thermal bulb bottom is supported and is led electrically at contact electrode piece, so the design is as long as the electric heat thermal bulb still fixes in spacing portion inboard, the electric heat thermal bulb just remains throughout to support with the electrode piece and leans on the state of circular telegram, circuit connection is very stable, make holistic electric heat executor's fault rate obtain decline by a wide margin.

In the above electric heating actuator, the linkage seat is of a tubular structure with a closed upper end and an open lower end, the linkage seat is sleeved outside the limiting part, and the pushing part on the thermal bulb abuts against the top wall of the inner cavity of the linkage seat.

The linkage seat of this design is that the tubular structure directly covers in the top of spacing portion, and the promotion portion of electric heat thermal bulb upper end stretches out outside spacing portion, and it supports and leans on the inboard roof of linkage seat, and such linkage piece can be followed spacing portion and guided movement from top to bottom, and stability is high.

In the above electric heating actuator, the electric heating thermal bulb is sleeved with a second spring, the upper end of the second spring abuts against the top wall of the inner cavity of the linkage seat, and the electric heating thermal bulb keeps the trend of abutting against the electrode plate under the elastic force of the second spring.

According to the design, a second spring is sleeved at the upper end of the electric heating thermal bulb, the pushing part is located on the inner side of the spring and abuts against an inner cavity of the linkage seat, the top of the second spring also abuts against the linkage seat, the elastic force of the second spring is far smaller than that of the first spring, the electric heating thermal bulb can be pressed downwards under the elastic force action of the second spring to keep the electric heating thermal bulb to abut against the electrode plate, even if the electric heating actuator shakes or falls off, the electric heating thermal bulb and the electrode plate are still tightly matched, the contact is very stable, and the failure rate is further reduced.

In an above-mentioned electric heating actuator, the department that is located the last drill way of guiding hole on the diapire of installation cavity has annular portion to bulge, annular portion is located and is offered along the rectangular form breach groove of offering on the annular portion direction of height near electric heat thermal bulb one side, trigger the slider and stretch into in the annular portion and can follow the annular portion direction removal from breach groove.

This design sets up cyclic annular portion in the top of guiding hole, and cyclic annular portion can effectual extension guiding hole's length for trigger the slider and reciprocate the in-process and can both receive the direction, remove more stably.

Compared with the prior art, the product has the advantages that: when the electric heating actuator is powered on, the electric heating thermal bulb pushes the linkage seat to drive the trigger sliding block to move upwards to close the equipment, the pushing part on the electric heating thermal bulb descends after the power is off, the linkage seat drives the trigger sliding block to move downwards under the action of elastic force of the spring to press a touch button on the equipment to open the equipment, and the electric heating thermal bulb is always kept motionless to enable the wiring end to be stably powered on when in use, so that the integral failure rate is reduced.

Drawings

Fig. 1 is a half sectional view of the present invention;

FIG. 2 is a partial structural view of the present invention;

fig. 3 is a view of the linkage seat and the trigger block of the present invention.

In the figure, 1, a housing; 11. a mounting cavity; 12. a guide hole; 13. a limiting part; 14. an annular portion; 15. a notch groove; 2. an electric heating thermal bulb; 21. a pushing part; 22. a terminal; 3. triggering the sliding block; 31. a linkage seat; 4. a first spring; 5. an electrode sheet; 51. a positive plate; 52. a negative plate; 6. and a second spring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

An electric heating actuator as shown in fig. 1-3 comprises a shell 1 and an electric heating thermal bulb 2, wherein a mounting cavity 11 is arranged in the shell 1, a pushing part 21 is arranged at the top of the electric heating thermal bulb 2, terminals 22, namely, positive and negative electrodes, are arranged at the bottom of the electric heating thermal bulb 2, the electric heating thermal bulb 2 is electrified to generate heat and expands to enable the pushing part 21 at the top to extend out, the electric heating thermal bulb 2 is fixed at the inner side of the mounting cavity 11, the pushing part 21 on the electric heating thermal bulb 2 is vertically arranged upwards, an annular limiting part 13 is protruded from the bottom wall of the mounting cavity 11, an electrode plate 5 is fixed at the inner side of the limiting part 13 of the mounting cavity 11, and the terminals 22 are abutted against the electrode plate 5 and electrically connected with the electrode plate 5. The electrode plate 5 comprises a positive plate 51 and a negative plate 52, the positive plate 51 is positioned at the bottom of the mounting cavity 11 at the inner side of the limiting plate 13, the negative plate 52 is embedded on the inner wall of the limiting part 13, a step groove is formed in the inner wall of the limiting part 13, the negative plate 52 is positioned at the step groove, and the electric heating thermal bulb 2 is abutted against the negative plate 52 in the step groove. The positive plate 51 and the negative plate 52 extend out of two independent notch side parts on the limiting part 13 through conducting wires, a power socket is embedded on the outer side surface of the shell 1, and the positive plate 51 and the negative plate 52 are connected into the power socket through conducting wires. One side that lies in electric heat thermal bulb 2 on the diapire of casing 1 sets up the guiding hole 12 with external intercommunication, slides in guiding hole 12 and is provided with trigger slider 3, and trigger slider 3's upper end has the linkage seat 31 that extends to promotion portion 21 top, and the pressure equipment has spring one 4 between installation cavity 11 roof and the linkage seat 31, and linkage seat 31 keeps leaning on the trend on promoting portion 21 under the spring force effect of spring one 4. The electric heating thermal bulb 2 in the electric heating actuator is fixed in the installation cavity 11 and cannot move, the trigger slider 3 is arranged on one side of the electric heating thermal bulb 2, the linkage seat 31 is additionally arranged on the end part of the linkage seat 3 through improving the structure of the trigger slider 3, the linkage seat 31 extends to the position above the pushing part 21 at the top of the electric heating thermal bulb 1, a spring 4 is pressed between the linkage seat 31 and the top wall of the shell 1 to ensure that the linkage seat 31 and the pushing part 21 on the electric heating thermal bulb 2 are abutted against each other, so that the pushing part 21 of the electric heating thermal bulb 2 can drive the linkage seat 31 to move upwards against the spring elasticity after the electric heating thermal bulb 2 is electrified, the trigger slider 3 also synchronously moves upwards, after the power failure occurs, the pushing part 21 on the electric heating thermal bulb 2 descends, the linkage seat 31 descends under the spring 4 elasticity to reset, the trigger slider 3 moves downwards to extend out of the guide hole 12, the electric heating actuator is designed to enable the position of the electric heating thermal bulb 2 to be kept unchanged all the time when the switch is controlled, and the electric wire circuit connected with the electric heating actuator can be kept in a stable connection state, and the integral failure rate is reduced. This design sets up on the bottom of installation cavity 11 and is annular spacing portion 13, electric heat thermal bulb 2 is whole to be inlayed and to be established at spacing portion 13 inboardly, be connected with electrode slice 5 on spacing portion 13 inboard casing 1, the wiring end 22 on electric heat thermal bulb 2 bottom is direct to be supported and is leaned on contact electrode slice 5 electrically conductive, so long as electric heat thermal bulb 2 is still fixed at spacing portion 13 inboardly in the design, electric heat thermal bulb 2 just remains throughout to support with electrode slice 5 and leans on the state of circular telegram, circuit connection is very stable, make holistic electric heat actuator's fault rate obtain decline by a wide margin.

The linkage seat 31 of this design is the open tubular structure of upper end closed lower extreme, and the outside at spacing portion 13 is suit to linkage seat 31, and the promotion portion 21 on the bulb supports and leans on the roof of the inner chamber of linkage seat 31. The electric heating thermal bulb 2 is sleeved with a second spring 6, the upper end of the second spring 6 abuts against the top wall of the inner cavity of the linkage seat 31, and the electric heating thermal bulb 2 keeps the trend of abutting against the electrode plate 5 under the action of the elastic force of the second spring 6. The linkage seat 31 directly covers the upper part of the limiting part 13, the pushing part 21 at the upper end of the thermal bulb extends out of the limiting part 13 and is abutted against the inner side top wall of the linkage seat 31, and the linkage part can move up and down along the limiting part 13 in a guiding mode, so that the stability is high. This design is equipped with spring two 6 in the upper end cover of electric heat thermal bulb 2, pushing part 21 is located the inboard of spring and supports and lean on the inner chamber of linkage seat 31, the top of spring two 6 also supports and supports on linkage seat 31, the elasticity of spring two 6 is far less than the elasticity of spring one 4, can push down electric heat thermal bulb 2 on the electric heat thermal bulb 2 under the elastic action of spring two 6 makes it keep supporting the trend on electrode slice 5, even the electric heat executor appears rocking or drops and also still closely cooperate together between electric heat thermal bulb 2 and the electrode slice 5 like this, the contact is very stable, the fault rate further descends. The annular portion 14 protrudes from the upper opening of the guide hole 12 on the bottom wall of the mounting cavity 11, the annular portion 14 is located at one side close to the electric heating thermal bulb 2 and is provided with a notch groove 15 which is long-strip-shaped along the height direction of the annular portion 14, and the trigger slider 3 extends into the annular portion 14 from the notch groove 15 and can move along the guide of the annular portion 14. This design sets up annular portion 14 in the top of guiding hole 12, and annular portion 14 can effectual extension guiding hole 12's length for trigger slider 3 reciprocates the in-process and can both receive the direction, and it is more stable to remove.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides an electric heating actuator, includes casing (1) and electric heat thermal bulb (2), installation cavity (11) have in casing (1), the top of electric heat thermal bulb (2) has promotion portion (21), its characterized in that, electric heat thermal bulb (2) are fixed in the inboard of installation cavity (11) and promotion portion (21) vertical upwards set up on it, guiding hole (12) with external intercommunication are seted up to the one side that is located electric heat thermal bulb (2) on the diapire of casing (1), the central line of guiding hole (12) with the axis of promotion portion (21) parallels, it triggers slider (3) to slide in guiding hole (12), the upper end that triggers slider (3) is equipped with linkage seat (31), linkage seat (31) are located promotion portion (21) top just the trend that supports on promotion portion (21) between installation cavity (11) roof and linkage seat (31) is pressure equipment spring one (4), linkage seat (31) keep leaning on under the elastic action of spring one (4) and push the trend on.

2. The electrothermal actuator according to claim 1, wherein an annular limiting part (13) protrudes from the bottom wall of the mounting cavity (11), an electrode plate (5) is fixed on the inner side of the limiting part (13), a terminal (22) is arranged at the lower end of the electrothermal bulb (2), the electrothermal bulb (2) is fixed on the inner side of the limiting part (13), and the terminal (22) is electrically connected with the electrode plate (5) by abutting against the electrode plate (5).

3. The electrothermal actuator according to claim 2, wherein the linkage seat (31) is a cylindrical structure with a closed upper end and an open lower end, the linkage seat (31) is sleeved outside the limiting part (13), and the pushing part (21) on the electrothermal bulb (2) abuts against the top wall of the inner cavity of the linkage seat (31).

4. The electric heating actuator according to claim 3, wherein the electric heating thermal bulb (2) is sleeved with a second spring (6), the upper end of the second spring (6) abuts against the top wall of the inner cavity of the linkage seat (31), and the electric heating thermal bulb (2) keeps the tendency of abutting against the electrode plate (5) under the elastic force of the second spring (6).

5. The electrothermal actuator according to any one of claims 1 to 4, wherein a ring-shaped portion (14) protrudes from the bottom wall of the mounting cavity (11) at the upper opening of the guide hole (12), a notch groove (15) which is long in the height direction of the ring-shaped portion (14) is formed in one side of the ring-shaped portion (14) close to the electrothermal bulb (2), and the trigger slider (3) extends into the ring-shaped portion (14) from the notch groove (15) and can move along the ring-shaped portion (14) in a guiding manner.