Contact magnetic control sealed switch

Abstract

The utility model discloses a contact formula magnetron sealed switch, including casing, shell cover, elastic sheet action terminal, first static terminal, second static terminal and inner magnet. The elastic sheet action terminal is the elastic sheet that is equipped with the movable contact of upper and lower surface, and the upper static contact of first static terminal is equipped on it, and the lower static contact of second static terminal is equipped below. The inner magnet sets up at one end of elastic sheet action terminal. When the door body opens and shuts, the inner magnet is affected by the repulsion or suction of outer magnet, directly drives the elastic sheet action terminal to move up and down, makes its upper and lower surface movable contact alternate and upper, lower static contact contact, realizes the on-off switching of circuit. The utility model discloses through the compact double -sided contact structure and the sealing of shell body's glue -making, has realized the beneficial effect that action is smooth, reset is quick, long -lived and has high protection level, is especially suitable for the door body response control of refrigerator, electric pressure cooker and other equipment.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, specifically to a magnetic micro switch suitable for devices such as refrigerators and electric pressure cookers. Background Technology

[0002] Door switches are key components for controlling the start and stop of systems in appliances such as refrigerators and electric pressure cookers. Their working principle is generally as follows: when the door is opened, the magnetic field causes the internal elastic spring to close, connecting the control system circuit; when the door is closed, the magnetic induction returns, and the circuit is disconnected. Currently, most common door switches use mechanical push-button or lever-driven structures to achieve on / off switching. These structures suffer from drawbacks such as numerous parts and cumbersome assembly. While existing magnetic door switch solutions partially solve the mechanical contact problem, their internal structures are often still complex, and they generally suffer from short pressing strokes and limited operating force, making them prone to mechanical failures and affecting user experience and equipment reliability. In addition, many existing switches lack sufficient sealing, making it difficult to operate stably in harsh environments such as humid or wet conditions. Therefore, there is an urgent need for a magnetic door switch with a simple and compact structure, reliable operation, and excellent sealing performance to overcome the shortcomings of existing technologies. Utility Model Content

[0003] The purpose of this utility model is to provide a contact-type magnetically controlled sealed switch with a reasonable structure and convenient use.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A contact-type magnetically controlled sealed switch includes a housing and a cover, and further includes: The spring-loaded actuating terminal, the first stationary terminal, the second stationary terminal, and the internal magnet are disposed within the housing; One end of the spring-loaded actuating terminal is connected to a magnet slot for mounting the inner magnet, and the upper and lower surfaces of the middle part of the spring-loaded actuating terminal are respectively provided with moving contacts; The first stationary terminal is provided with an upper stationary contact, which is located above the spring contact actuation terminal; The second stationary terminal is provided with a lower stationary contact, which is located below the spring contact actuation terminal; The circuit is switched on and off by the cooperation of the upper and lower moving contacts with the upper and lower stationary contacts, respectively.

[0005] Furthermore, the housing is provided with slots for installing the spring contact actuating terminal, the first stationary terminal, and the second stationary terminal.

[0006] Furthermore, the housing and the cover are sealed with adhesive to form a sealed structure.

[0007] Furthermore, when the door is closed, the inner magnet attracts the outer magnet, the spring action terminal resets, and the moving contact connects with the upper stationary contact; when the door is open, the inner magnet repels the outer magnet, the spring action terminal moves down, and the moving contact connects with the lower stationary contact.

[0008] Furthermore, the spring-loaded actuating terminal is an elastic metal sheet with a resettable structure, which can be directly driven to make up-down elastic movements by the up-and-down movement of the inner magnet.

[0009] Furthermore, the first stationary terminal has an L-shaped structure, with one end fixed in the slot and the other end extending above the spring-loaded actuating terminal, and an upper stationary contact is fixed at its end.

[0010] Furthermore, the second stationary terminal has an L-shaped structure, with one end fixed in the slot and the other end extending below the spring-loaded actuating terminal, and a lower stationary contact is fixed at its end.

[0011] Compared to traditional spring mechanical structures, this switch operates more smoothly, has a faster reset response, and a longer service life, making it especially suitable for door opening and closing scenarios. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the switch of this utility model after the cover is removed; Figure 2 This is a schematic diagram of the switch of this utility model after removing the housing and cover; Figure 3 This is a schematic diagram of the housing structure of the switch of this utility model; Figure 4 This is a schematic diagram of the overall structure of the switch of this utility model. Detailed Implementation

[0013] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] See Figure 1-4 This utility model provides a contact-type magnetically controlled sealed switch, comprising: The housing 1 and the cover 2 are preferably a plastic housing and a plastic cover, which can be sealed by applying glue to form a sealed structure; the housing 1 has slots 11 for installing spring contact action terminal 3, first stationary terminal 4 and second stationary terminal 5 respectively; The spring-loaded actuating terminal 3 has a magnet slot 31 for mounting the inner magnet 6 at one end, and movable contacts 32 are respectively provided on the upper and lower surfaces of the middle part of the spring-loaded actuating terminal 3; specifically, the spring-loaded actuating terminal 3 is an elastic metal sheet with a resettable structure, which can be directly driven to make up-down elastic movement by the up-down movement of the inner magnet 6; The first stationary terminal 4 is provided with an upper stationary contact 41, which is located above the spring actuating terminal 3. Preferably, the first stationary terminal 4 has an L-shaped structure, with one end fixed in the slot 11 and the other end extending above the spring actuating terminal 3, and the upper stationary contact 41 is fixed at its end. The second stationary terminal 5 is provided with a lower stationary contact 51, which is located below the spring actuation terminal 3. As a preferred embodiment of the present invention, the second stationary terminal 5 has an L-shaped structure, with one end fixed in the slot 11 and the other end extending to the lower part of the spring actuation terminal 3, and a lower stationary contact 51 is fixed at its end.

[0017] The working principle of this inductive switch is as follows: This switch utilizes the magnetic force between the inner magnet and the outer magnet (where like poles repel and unlike poles attract) to achieve automatic detection and control of the door status. When the door is closed, the inner and outer magnets attract each other, the spring contact terminal resets, the moving contact connects with the upper stationary contact, and the switch is in the normally closed state. When the door is open, the inner and outer magnets repel each other, pushing the spring contact terminal downwards, causing the moving contact to connect with the lower stationary contact, the system switches to the normally open state, thereby triggering the corresponding control signal.

[0018] This invention utilizes a fully sealed adhesive structure with a shell and cap, ensuring excellent moisture and water resistance (such as IP67 rating) without affecting the accuracy of magnetic force transmission and switching action. It is particularly suitable for door control applications such as refrigerators and electric pressure cookers that require high sealing and environmental tolerance.

[0019] In addition, the inductive switch of this invention is easy to process and manufacture, and can be easily mass-produced.

[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0021] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A contact-type magnetically controlled sealed switch, comprising a housing and a cover, characterized in that, Also includes: The spring-loaded actuating terminal, the first stationary terminal, the second stationary terminal, and the internal magnet are disposed within the housing; One end of the spring-loaded actuating terminal is connected to a magnet slot for mounting the inner magnet, and the upper and lower surfaces of the middle part of the spring-loaded actuating terminal are respectively provided with moving contacts; The first stationary terminal is provided with an upper stationary contact, which is located above the spring contact actuation terminal; The second stationary terminal is provided with a lower stationary contact, which is located below the spring contact actuation terminal; The circuit is switched on and off by the cooperation of the upper and lower moving contacts with the upper and lower stationary contacts, respectively.

2. The contact-type magnetically controlled sealed switch as described in claim 1, characterized in that: The housing is provided with slots for installing the spring contact actuating terminal, the first stationary terminal, and the second stationary terminal.

3. A contact-type magnetically controlled sealed switch as described in claim 1, characterized in that: The housing and the cover are sealed together by applying adhesive to form a sealed structure.

4. A contact-type magnetically controlled sealed switch as described in claim 1, characterized in that: When the door is closed, the inner magnet attracts the outer magnet, the spring action terminal resets, and the moving contact connects with the upper stationary contact; when the door is open, the inner magnet repels the outer magnet, the spring action terminal moves down, and the moving contact connects with the lower stationary contact.

5. A contact-type magnetically controlled sealed switch as described in claim 1, characterized in that: The spring-loaded actuating terminal is an elastic metal sheet with a resettable structure, which can be directly driven to make up-down elastic movements by the up-down movement of the internal magnet.

6. A contact-type magnetically controlled sealed switch as described in claim 2, characterized in that: The first stationary terminal has an L-shaped structure, with one end fixed in the slot and the other end extending above the spring contact actuation terminal, and an upper stationary contact is fixed at its end.

7. A contact-type magnetically controlled sealed switch as described in claim 2, characterized in that: The second stationary terminal has an L-shaped structure, with one end fixed in the slot and the other end extending below the spring-loaded actuating terminal, and a lower stationary contact is fixed at its end.

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