CN201413784Y

CN201413784Y - Voltage-resistant switch

Info

Publication number: CN201413784Y
Application number: CN2009201388377U
Authority: CN
Inventors: 曹婷婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-28
Filing date: 2009-05-28
Publication date: 2010-02-24
Anticipated expiration: 2019-05-28

Abstract

A voltage-resistant switch relates to the technical field of switches and comprises a switch body, the switch body is provided with a key contact zone, a matched ring body is arranged above the key contact zone, the inner wall of the ring body is provided with a contact terminal, the wall of the ring body is provided with an air hole, a protective casing is arranged outside the key contact zone, and a spring is arranged on the lower side of the ring body. The voltage-resistant switch has better operation sensitivity, can dissipate heat effectively and prevent the temperature of the switch fromrising due to frequent use.

Description

The pressure resistant type switch

Technical field

The utility model relates to a kind of switch.

Background technology

At present, in the household electric appliances, most products all will use button, realize control to complete machine by button and contacting of touch-switch.Described button generally adopts engineering plastics to make, comprise annular solid, the end face of annular solid one end is an operating surface, the end face of the annular solid other end is for depressing face, the face of depressing is relative with the touch-switch contact zone, and when depressing operating surface, the face of depressing contacts with the touch-switch contact zone, turn-on control circuit is realized the control operation to product.Because the mid portion of touch-switch contact zone is highly sensitive in marginal portion sensitivity, therefore, when using the button of aforementioned structure, feel " blunt " may appear, that is the not enough situation of Operational Figure Of Merit, and, when switch frequently uses, because electric current raises by making the switch body temperature easily.

The utility model content

In order to overcome the sensitive inadequately deficiency of existing touch-switch button operation, the utility model provides a kind of pressure resistant type switch, and this pressure resistant type switching manipulation sensitivity is better, can dispel the heat effectively, prevents frequent use of switch and the temperature rising.

The technical scheme that its technical problem that solves the utility model adopts is; a kind of pressure resistant type switch; comprise switch main body; switch main body is provided with the button contact zone; top, button contact zone is provided with the annular solid that is complementary, and the annular solid inwall is provided with contact, and annular body wall is provided with ventilation hole; button contact zone arranged outside has protective sleeve, and the annular solid downside is provided with spring.

The beneficial effects of the utility model are, by on the inwall of annular solid contact being set, make the contact site of button and touch-switch contact zone become mid portion from the marginal portion, make Operational Figure Of Merit higher.And contact can strengthen the intensity of button, thereby is satisfying under the condition of requirement of strength and can partly do annular solid thinner, saves material.The annular body wall is provided with ventilation hole, can dispel the heat effectively, prevents frequent use of switch and the temperature rising.Button contact zone arranged outside has protective sleeve, and guard ring body effectively prolongs annular solid useful life.The annular solid downside is provided with spring, can strengthen the elasticity of annular solid.

Description of drawings

Fig. 1 is the structure chart of the utility model pressure resistant type switch.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the upward view of annular solid among Fig. 2.

Embodiment

Below in conjunction with accompanying drawing the utility model is further specified; as Fig. 1, Fig. 2, shown in Figure 3; a kind of pressure resistant type switch; comprise switch main body 1, switch main body 1 is provided with

button contact zone

2, and 2 tops, button contact zone are provided with the annular solid 3 that is complementary; annular solid 3 inwalls are provided with contact 5; annular solid 3 walls are provided with ventilation hole 4, and button contact zone 2 arranged outside have protective sleeve 6, and annular solid 3 downsides are provided with spring 7.Because the sensitivity of this switch key contact zone is descended gradually by middle mind-set edge, after the architecture advances to annular solid, the contact that is provided with on the annular solid inwall has improved operational sensitivity facing to the mid portion of switch main body button contact zone.And contact can strengthen the intensity of button, thereby is satisfying under the condition of requirement of strength and can partly do annular solid thinner, saves material.The annular body wall is provided with ventilation hole 4, can dispel the heat effectively, prevents frequent use of switch and the temperature rising.Button contact zone arranged outside has protective sleeve, and guard ring body effectively prolongs annular solid useful life.The annular solid downside is provided with spring, can strengthen the elasticity of annular solid.

Claims

1, a kind of pressure resistant type switch; comprise switch main body (1); switch main body (1) is provided with button contact zone (2); top, button contact zone (2) is provided with the annular solid (3) that is complementary; it is characterized in that: annular solid (3) inwall is provided with contact (5); annular solid (3) wall is provided with ventilation hole (4), and button contact zone (2) arranged outside has protective sleeve (6), and annular solid (3) downside is provided with spring (7).