CN211529903U

CN211529903U - Key device for relay

Info

Publication number: CN211529903U
Application number: CN202020616875.5U
Authority: CN
Inventors: 刘永理; 孟德健; 倪娜; 刘永芳
Original assignee: Nanjing Huayong Electric Co ltd
Current assignee: Nanjing Huayong Electric Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2020-09-18
Anticipated expiration: 2030-04-22

Abstract

The utility model discloses a key device for a relay, which comprises a support plate, an annular fixing part and a key handle; one end of the supporting plate is connected with the relay switch, the other end of the supporting plate is provided with a clamping groove, the annular fixing part is partially embedded into the clamping groove, and the annular fixing part is fixed through the clamping groove; the annular fixing part is provided with a fixing strip surrounding the outer ring of the annular fixing part, two ends of the fixing strip are connected with the supporting plate, two ends of the fixing strip are respectively arranged at two sides of the clamping groove, and the annular fixing part is fixed through the fixing strip; the key handle penetrates through the annular fixing part and then is in contact connection with the relay switch button for turning on and off the relay switch. The utility model discloses a button device carries on spacingly and fixed to the button handle, does not swing when making its use, reduces the disturbance to other switch buttons.

Description

Key device for relay

Technical Field

The utility model relates to a relay technical field particularly relates to a button device especially is used for relay.

Background

Relay devices such as power relay are provided with the switch that is used for functions such as reseing, test usually, lie in relay housing inside and integrated on circuit board (PCB), especially adopt micro-gap switch, trigger from the relay outside through a button extension handle button, such button extension handle is only fixed a position via the hole site of shell usually, keeps the position of its vertical direction for there is the problem of rocking often in button extension handle, and user experience is poor.

Along with the miniaturization and compact design of the relay device, the key switch is more and more compact, and the traditional key extension handle is easy to cause disturbance to other keys on the periphery in the using process, so that interference is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a button device for relay to prior art not enough, this button device carries out the spacing fixed of circumference to the button handle, does not swing when making it use to reduce the disturbance to other switch buttons.

In order to achieve the above object, the utility model adopts the following technical scheme:

a key device for a relay, comprising: a support plate, an annular fixing part and a key handle;

the supporting plate is vertically arranged, one end of the supporting plate is fixedly connected with a shell of a switch arranged in the relay, the other end of the supporting plate is provided with a clamping groove, and the annular fixing part is partially embedded into the clamping groove;

the annular fixing part is provided with a fixing strip surrounding the outer ring of the annular fixing part, the fixing strip is provided with an arc-shaped part surrounding the fixing strip, two ends of the arc-shaped part respectively extend to the support plate and are fixedly connected with the support plate, and the annular fixing part is fixed through the fixing strip;

the key handle penetrates through the annular fixing part and is in contact connection with a trigger part of the switch in the relay, and the key handle is operated from the outside to operate the switch. Annular fixing part of annular fixing part

Further, the fixing strip is tightly attached to the annular fixing portion, and two ends of the fixing strip are fixed to the supporting plate through the welding disc.

Furthermore, two extending ends of the arc-shaped part of the fixing strip are respectively connected with two side annular fixing parts of the clamping groove on the supporting plate.

Further, the height of the clamping groove is consistent with that of the annular fixing part.

Further, the key handle is cylindrical, and the diameter of the key handle is consistent with the inner diameter of the annular fixing part.

Further, the height of the key handle is matched with the product shell.

Further, one end of the supporting plate is fixed with the relay switch through a screw.

Further, the supporting plate is a PCB.

Further, the width of the clamping groove is smaller than the outer diameter of the annular fixing part, so that when the annular fixing part is clamped into the clamping groove, the annular fixing part can be further stably fixed on the supporting plate through the fixing strip.

The beneficial effects of the utility model reside in that:

the utility model limits the key handle through the annular fixing part, and the diameter of the key handle is consistent with the inner diameter of the annular fixing part, so that the key handle can be stabilized in the annular fixing part, thereby being beneficial to the movement when being pressed up and down, and simultaneously not shaking when being pressed and triggered, thereby leading to possible disturbance;

the annular fixing part is partially embedded into a clamping groove arranged in the support plate, the height of the clamping groove is consistent with that of the annular fixing part, so that the annular fixing part is stably embedded into the support plate, and the annular fixing part of the annular fixing part is further fixed through an arc-shaped fixing strip to ensure that the annular fixing part is stably installed on the support plate;

the supporting plate can be made of the same material as the PCB inside the relay, for example, redundant materials are adopted, effective utilization is achieved, and meanwhile, use and manufacturing cost is reduced.

Annular fixing part

Drawings

Fig. 1 is a front view of a key device for a relay according to the present invention.

Fig. 2 is a rear view of the key device for a relay according to the present invention.

Fig. 3 is a left side view of the key device for a relay according to the present invention.

Fig. 4 is a plan view of the key device for the relay according to the present invention.

Description of reference numerals:

10. a support plate; 11. a screw; 20. a ring-shaped fixing portion; 21. a fixing strip; 30. a key handle; 40. a switch; 41. trigger part

Detailed Description

For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways.

As shown in fig. 1 to 4, the present embodiment provides a key device for a relay, which includes a support plate 10, a ring-shaped fixing portion 20, and a key handle 30. The push button 30 is in particular designed in a cylindrical manner, the height of which is matched to the housing of the relay, so that it can be actuated outside the housing of the relay in order to trigger switches inside the housing of the relay, which are in particular integrated on a PCB board, such as function switches, for example microswitches, which perform testing, resetting or switch control.

As shown in fig. 1 and 2, the bottom of the switch 40 is typically configured to be secured to a circuit board (PCB) inside the relay. The support plate 10 is vertically installed inside the relay housing, one end of the lower portion of the support plate is fixed to the switch 40 through the screw 11, the clamping groove 12 is formed in the upper end of the support plate 10, the height of the clamping groove 12 is identical to the height of the annular fixing portion 20, the annular fixing portion 20 is partially embedded into the clamping groove 12, and the annular fixing portion 20 is limited through the clamping groove 12.

It should be understood that the width of the slot 12 is smaller than the outer diameter of the ring-shaped fixing portion 20, and it is sufficient that the ring-shaped fixing portion 20 is tightly caught in the slot without affecting the movement of the key grip 30.

The annular fixing portion 20 is provided with a fixing strip 21 surrounding an outer ring thereof, the fixing strip 21 has an arc-shaped portion surrounding the annular fixing portion, and the annular fixing portion 20 is tightly attached. The two ends of the arc-shaped part respectively extend to the supporting plate and are fixedly connected with the supporting plate, and the annular fixing part is fixed through the fixing strip.

Preferably, both ends of the fixing bar 21 are fixed on the support plate 10 by pads, and both ends of the fixing bar 21 are respectively at both sides of the slot 12. Thereby, the ring-shaped fixing portion is further fixed by the fixing strip, and the distance between both ends of the fixing strip coincides with the outer diameter of the ring-shaped fixing portion 20.

The key lever 30 passes through the ring-shaped fixing portion 20 and is in contact connection with the trigger portion 41 of the switch 40 inside the relay for operating the switch by operating the key lever from the outside. Alternatively, the diameter of the key grip 30 coincides with the inner diameter of the ring-shaped fixing portion 20.

Preferably, the screw meets the salt spray grade of 96H, and the annular fixing part and the key handle are made of high-temperature-resistant and non-deformable Teflon materials.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.

Claims

1. A key device for a relay, comprising: a support plate, an annular fixing part and a key handle;

the key handle penetrates through the annular fixing part and is in contact connection with a trigger part of the switch in the relay, and the key handle is operated from the outside to operate the switch.

2. The key device for a relay according to claim 1, wherein: the fixing strip is tightly attached to the annular fixing portion, and two ends of the fixing strip are fixed to the supporting plate through the welding discs.

3. The key device for a relay according to claim 2, wherein: the two extending ends of the arc-shaped part of the fixing strip annular fixing part are respectively connected to the two sides of the clamping groove in the supporting plate.

4. The key device for a relay according to claim 1, wherein: the height of the clamping groove is consistent with that of the annular fixing part.

5. The key device for a relay according to claim 1, wherein: the key handle is cylindrical, and the diameter of the key handle is consistent with the inner diameter of the annular fixing part.

6. The key device for a relay according to claim 4, wherein: the height of the button handle is matched with the relay shell.

7. The key device for a relay according to claim 1, wherein: one end of the supporting plate is fixed with the switch through a screw.

8. The key device for a relay according to any one of claims 1 to 7, wherein: the supporting plate is a PCB.

9. The key device for a relay according to claim 1, wherein: the width of the clamping groove is smaller than the outer diameter of the annular fixing part.