CN215172619U

CN215172619U - Electric actuator

Info

Publication number: CN215172619U
Application number: CN202120500311.XU
Authority: CN
Inventors: 刘欢欢
Original assignee: Hebei Hengya Technology Co ltd
Current assignee: Hebei Hengya Technology Co ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-12-14
Anticipated expiration: 2031-03-09

Abstract

The utility model discloses an electric actuator relates to the electric valve field, including the pencil, executor assembly and sealing layer, the pencil includes the inscription pencil, external pencil and pencil connection chip, be provided with the pencil seal groove on the executor assembly shell, the sealing layer sets up in the pencil seal groove, the one end of inscription pencil, the one end of external pencil all is connected the chip electricity with the pencil and is connected, pencil connection chip will inscription pencil and external pencil electricity intercommunication, the one end that the pencil connection chip was kept away from to the inscription pencil is introduced inside the executor assembly and is connected with the executor electricity, the one end that the pencil connection chip was kept away from to the external pencil is used for being connected with external control module electricity, the sealing layer can be with the inscription pencil, the wire of the one end that external pencil is connected the chip with the pencil and the clearance between the insulating layer is sealed. The electric actuator can improve the sealing performance of electric execution.

Description

Electric actuator

Technical Field

The utility model relates to an electric valve field, concretely relates to electric actuator.

Background

The electric actuator is an indispensable important component in the intelligent water meter control valve and is used for receiving a control signal of the control module and controlling the three-way valve, so that the flow direction and the flow rate of a controlled medium are changed, and finally the low-power consumption control valve realizes the switching function. The electric actuator consists of a gear motor, a three-way valve and a shell plastic part. Water and moisture penetrate inside the control actuator through the insulation of the outer harness, but this device is extremely afraid of water and moisture, and is not easily replaceable and difficult to service after sale. However, the installation environment is special, and once the equipment is soaked in water or corroded by moisture, the whole equipment can be out of order, and finally, the loss is brought to users.

Disclosure of Invention

The utility model aims at providing an electric actuator that sealing performance is good to solve the problem that above-mentioned prior art exists.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides an electric actuator, including pencil, executor assembly and sealing layer, the pencil includes the internal connection pencil, external pencil and pencil connection chip, be provided with the pencil seal groove on the executor assembly shell, the sealing layer sets up in the pencil seal groove, the one end of internal connection pencil, the one end of external pencil all is connected with pencil connection chip electricity, pencil connection chip will be internal connection pencil and external pencil electricity intercommunication, the one end that the internal connection pencil kept away from pencil connection chip is introduced inside the executor assembly and is connected with the executor electricity, the one end that external pencil kept away from pencil connection chip is used for being connected with external control module electricity, the sealing layer can with the internal connection pencil external pencil is connected the clearance between the one end wire and the insulating layer that the chip is connected with the pencil and is sealed.

Preferably, the hydraulic control system further comprises a three-way valve assembly, the three-way valve assembly is detachably connected with the actuator assembly, and the actuator is in transmission connection with the three-way valve assembly.

Preferably, a sealing ring through hole is formed in the position of the beam sealing groove in the outer wall of the actuator assembly, a beam sealing ring is arranged in the sealing ring through hole, the internal wiring harness is led into the actuator assembly through the beam sealing ring, and the beam sealing ring can seal a gap between the internal wiring harness and the sealing ring through hole.

Preferably, the actuator assembly housing comprises an upper housing and a lower housing, the upper housing is fixedly connected with the lower housing, and a sealing gasket is arranged between the upper housing and the lower housing and can seal a gap between the upper housing and the lower housing.

Preferably, the side wall of the upper housing and the side wall of the lower housing can form an annular groove, and the annular groove is a wiring harness sealing groove.

Preferably, the periphery of the external wiring harness is provided with a protective layer, and the protective layer extends along the extending direction of the external wiring harness.

Preferably, the three-way valve assembly comprises a three-way valve and a buckle seat, the three-way valve is fixedly connected with the buckle seat, and the buckle seat is clamped with the lower shell.

Preferably, the hydraulic control system further comprises a transfer shaft, one end of the transfer shaft is connected with the actuator assembly, the other end of the transfer shaft is connected with the three-way valve assembly, and the transfer shaft can transmit power emitted by the actuator assembly to the three-way valve assembly.

Preferably, the connecting shaft further comprises a sealing ring, and the sealing ring is sleeved on the radial outer side of the connecting shaft.

Preferably, the device further comprises a drying module, and the drying module is arranged inside the actuator assembly.

The utility model discloses for prior art gain following technological effect:

the utility model provides an electric actuator passes through the setting of pencil connection chip, and with connection chip, the insulating layer that the inscription pencil is close to connection chip one end is sealed in the sealing layer, connection chip cuts the wire crust, disconnection water and vapor follow the route that the pencil invaded, the sealing layer is closed the pencil near the clearance between connection chip's one end wire and the insulating layer again, make the inscription pencil can not directly communicate the inner space of executor assembly, inside the realization prevents that water or vapor from entering into the executor assembly through the insulating layer or the protecting layer skin of pencil, the leakproofness of electric actuator has been improved.

Furthermore, the three-way valve assembly which can be detachably connected is arranged, when the actuator assembly in the electric actuator is damaged, the actuator assembly can be only disassembled and repaired, and the maintenance is convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electric actuator provided by the present invention.

In the figure: 1-a three-way valve; 2-a buckle seat; 3-a lower housing; 4-an actuator; 5-PCB pinboard; 6-upper shell; 7-a transfer shaft; 8-a sealing gasket; 9-sealing ring; 10-fastening bolts; 11-a fastening bolt; 12-a fastening bolt; 13-a sealing layer; 14-a wire harness sealing ring; 15-an actuator assembly; 16-a three-way valve assembly; 17-an inscribed wire harness; 18-external wiring harness; 19-an electric actuator; 20-a wire harness seal groove; 21-a seal ring via hole.

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.

The utility model aims at providing an electric actuator to solve the problem that above-mentioned prior art exists, can improve the sealing performance of electronic execution.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The embodiment provides an electric actuator 19, as shown in fig. 1, comprising a wire harness, an actuator assembly 15 and a sealing layer 13, wherein the wire harness comprises an internal wire harness 17, an external wire harness 18 and a wire harness connection chip 5, a wire harness sealing groove 20 is arranged on a housing of the actuator assembly 15, the sealing layer 13 is arranged in the wire harness sealing groove 20, one end of the internal wire harness 17, one end of an external wire harness 18 is electrically connected with the wire harness connection chip 5, the wire harness connection chip 5 electrically communicates the internal wire harness 17 with the external wire harness 18, one end of the internal wire harness 17, far away from the wire harness connection chip 5, is introduced into the actuator assembly 15 and is electrically connected with the actuator 4, one end of the external wire harness 18, far away from the wire harness connection chip 5, is used for being electrically connected with an external control module, and the sealing layer 13 can seal one end of the internal wire harness 17, the external wire harness 18 and the wire harness connection chip 5, which is connected, in the sealing layer 13. Through the setting of pencil connection chip 5 to the clearance that will connect chip 5, inscription pencil 17 and be close to between the wire and the insulating layer of connection chip 5 one end is sealed, can cut off the route of water and vapor from the pencil invasion, make the crust of inscription pencil 17 can not directly communicate the inside and outside of executor assembly 15, realize preventing that water or vapor from entering into inside executor assembly 15 through the insulating layer of pencil or the protective layer crust, improved electric actuator 19's leakproofness.

In the present embodiment, it is preferable that the insulating layers of the internal wiring harness 17 and the external wiring harness 18 adjacent to the connection chip 5 are sealed in the sealing layer 13, and the protective layers of the internal wiring harness 17 and the external wiring harness 18 are also sealed in the sealing layer 13. The water and water vapor can be further prevented from pouring, the waterproof performance is further improved, in the embodiment, the sealant is preferably poured into the wire harness sealing groove 20 to form the sealing layer 13, and the processing is convenient; the sealant is preferably a two-component polyurethane pouring sealant, and is suitable for protecting electronic circuit boards and components which work and operate in humid, vibrating and corrosive environments, in the embodiment, the wiring harness connection chip is preferably a PCB adapter plate, and the shell of the actuator and the actuator assembly 15 is fixedly connected by the fastening bolt 12.

In this embodiment, the electric actuator 19 further includes a three-way valve assembly 16, and the three-way valve assembly 16 is detachably connected to the actuator assembly 15. The three-way valve assembly 16 which is detachably connected is arranged, when the actuator assembly 15 in the electric actuator 19 is damaged, only the actuator assembly 15 can be disassembled and repaired, the maintenance is convenient, and the three-way valve is preferably a three-way ball valve in the embodiment.

In this embodiment, a sealing ring through hole 21 is formed in the outer wall of the actuator assembly 15 at the position of the wire harness sealing groove 20, a wire harness sealing ring 14 is arranged in the sealing ring through hole 21, the internal connection wire harness 17 is introduced into the actuator assembly 15 through the wire harness sealing ring 14, and the wire harness sealing ring 14 can seal a gap between the internal connection wire harness 17 and the sealing ring through hole 21. The sealing ring via hole 21 is arranged at the position of the wire harness sealing groove 20, when the sealing layer 13 in the wire harness sealing groove 20 is formed, the sealing ring via hole 21 can be sealed for the first time, further, the internally-connected wire harness 17 is sealed in the wire harness sealing ring 14, then the wire harness sealing ring 14 is assembled into the sealing ring via hole 21, at the moment, the wire harness sealing ring 14 can completely seal the gap between the sealing ring via hole 21 and the wire harness, and the waterproof performance of the electric actuator 19 can be further improved.

In the embodiment, the clearance is preferably sealed by interference fit between the sealing ring 9 and the sealing ring via hole 21 and between the sealing ring 9 and the internal wiring harness 17, and the sealing structure is simple and has good sealing effect.

In this embodiment, the housing of the actuator assembly 15 includes an upper housing 6 and a lower housing 3, the upper housing 6 is fixedly connected to the lower housing 3, a sealing gasket 8 is disposed between the upper housing 6 and the lower housing 3, and the sealing gasket 8 can seal a gap between the upper housing 6 and the lower housing 3. The sealing gasket 8 is additionally arranged between the upper shell 6 and the lower shell 3, so that the gap between the upper shell 6 and the lower shell 3 can be sealed, and the sealing waterproof performance of the actuator assembly 15 can be improved. In this embodiment, the upper housing and the lower housing are fastened by fastening bolts 11.

In this embodiment, the sidewall of the upper housing 6 and the sidewall of the lower housing 3 can form an annular groove, which is a wiring harness sealing groove 20. The wire harness sealing groove 20 is formed by combining the upper housing 6 and the lower housing 3, and the sealing layer 13 in the wire harness sealing groove 20 can further seal a gap between the upper housing 6 and the lower housing 3, so that the sealing and waterproof performance of the electric actuator 19 is further improved.

In this embodiment, the periphery of the external harness 18 is provided with a protective layer, and the protective layer extends along the extending direction of the external harness 18. Because of including many solitary wires in the pencil, the protective layer is in the protective layer with many solitary wires protection, can protect the insulating layer of pencil, prevents that the wearing and tearing of pencil insulating layer from leaking electricity, causes electric actuator 19 to become invalid.

In this embodiment, the three-way valve assembly 16 includes a three-way valve 1 and a fastening seat, the three-way valve 1 is fixedly connected with the fastening seat, and the fastening seat is fastened with the lower housing 3. The three-way valve 1 is connected with the lower shell 3 in a clamping mode through the clamping buckle seat, the clamping buckle seat 2 can be connected with the lower shell 3 in a clamping mode better, and reliability is improved. The preferred buckle seat 2 of this embodiment is connected with the three-way valve 1 by using a fastening bolt 10.

In this embodiment, the electric actuator 19 further includes a transfer shaft 7, one end of the transfer shaft 7 is connected to the actuator assembly 15, the other end of the transfer shaft 7 is connected to the three-way valve assembly 16, and the transfer shaft can transmit power generated by the actuator assembly 15 to the three-way valve assembly 16. The use of the adapter shaft 7 can realize the maintenance or replacement of the actuator assembly 15 under the conditions of no water cut-off and no water discharge, thereby saving water resources and manpower.

In this embodiment, the electric actuator 19 further includes a sealing ring 9, and the sealing ring 9 is sleeved on the radial outer side of the spindle 7. The sealing ring 9 prevents water or water vapor from invading into the actuator assembly 15 through the position of the transfer shaft 7, and further improves the sealing and waterproof performance of the electric actuator 19.

In this embodiment, a drying module, preferably a desiccant, is included and is disposed within the actuator assembly 15. The water or water vapor that has entered the interior of the actuator assembly 15 can be absorbed, and the waterproof performance of the electric actuator 19 can be further improved.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. An electric actuator, characterized in that: including pencil, executor assembly and sealing layer, the pencil includes internal connection pencil, external pencil and pencil connection chip, be provided with the pencil seal groove on the executor assembly shell, the sealing layer sets up in the pencil seal groove, the one end of internal connection pencil the one end of external pencil all with pencil connection chip electricity is connected, pencil connection chip will the internal connection pencil with external pencil electricity intercommunication, the internal connection pencil is kept away from the one end that the chip was connected to the pencil is introduced the executor assembly is inside to be connected with the executor electricity, external pencil is kept away from the one end that the chip was connected to the pencil is used for being connected with external control module electricity, the sealing layer can with the internal connection pencil with the clearance between the wire of the one end that the chip is connected to the pencil and the insulating layer is sealed.

2. The electric actuator of claim 1, wherein: still include the three-way valve assembly, the three-way valve assembly with the executor assembly can be dismantled and be connected, the executor with the transmission of three-way valve assembly is connected.

3. The electric actuator of claim 1, wherein: a sealing ring through hole is formed in the position of a wire harness sealing groove in the outer wall of the actuator assembly, a wire harness sealing ring is arranged in the sealing ring through hole, the internally-connected wire harness is led into the interior of the actuator assembly through the wire harness sealing ring, and the wire harness sealing ring can seal a gap between the internally-connected wire harness and the sealing ring through hole.

4. The electric actuator of claim 2, wherein: the actuator assembly shell comprises an upper shell and a lower shell, the upper shell is fixedly connected with the lower shell, a sealing gasket is arranged between the upper shell and the lower shell, and the sealing gasket can seal a gap between the upper shell and the lower shell.

5. The electric actuator of claim 4, wherein: the lateral wall of going up the shell with the lateral wall of lower shell can constitute an annular groove, the annular groove is pencil seal groove.

6. The electric actuator of claim 1, wherein: the periphery of the external wiring harness is provided with a protective layer, and the protective layer extends along the extending direction of the external wiring harness.

7. The electric actuator of claim 4, wherein: the three-way valve assembly comprises a three-way valve and a buckle seat, the three-way valve is fixedly connected with the buckle seat, and the buckle seat is connected with the lower shell in a clamping mode.

8. The electric actuator of claim 2, wherein: the three-way valve assembly is characterized by further comprising a transfer shaft, one end of the transfer shaft is connected with the actuator, the other end of the transfer shaft is connected with the three-way valve assembly, and the transfer shaft can transmit power emitted by the actuator to the three-way valve assembly.

9. The electric actuator of claim 8, wherein: still include the sealing washer, the sealing washer cover is established switching shaft radial outside.

10. The electric actuator of claim 1, wherein: the actuator assembly further comprises a drying module, and the drying module is arranged inside the actuator assembly.