An externally reset electromagnet structure

Abstract

The utility model belongs to the field of electromagnets, and in particular, relates to an externally reset electromagnet structure, including an outer frame formed by the connection of a cover plate and a base, a coil, an armature and a reset spring, a hollow support member is provided in the outer frame, the coil is wound around the outer end of the support member, the armature extends from the cover plate, one end of the reset spring is connected to the armature, and the other end is connected to the cover plate, which is used to reset the armature. A hollow connecting boss with an opening extends from the lower end of the armature, and a hollow connecting recess with an opening is also fixedly provided in the support member. The connecting boss moves downward under the drive of the armature and is engaged with the connecting recess. A thimble is also connected to the open end of the connecting boss, and the thimble extends from the connecting recess and passes through the base. By optimizing the reset method and structural design, the stability and reliability of the refrigerator door control system are improved, which brings a more convenient and comfortable use experience to users.

Description

Technical Field

[0001] The utility model belongs to the field of electromagnets, and in particular relates to an externally reset electromagnet structure. Background Art

[0002] In the home appliance industry, electromagnets are a common control element widely used in various devices, such as washing machines, refrigerators, microwave ovens, etc. However, the traditional electromagnet structure has certain limitations in the reset method, such as the reset speed is not fast enough, the reset is not stable enough, etc. These problems have affected the user experience and performance of home appliances to a certain extent.

[0003] In order to solve the above problems, this patent proposes an external reset electromagnet structure, which realizes a fast and stable reset function through an external reset spring and specially designed connecting bosses and connecting recesses, and improves the reliability and service life of the electromagnet. Utility Model Content

[0004] The utility model aims to provide an externally reset electromagnet structure, aiming to solve the above problems.

[0005] To achieve the above-mentioned purpose, the utility model provides an externally reset electromagnet structure, including an outer frame formed by connecting a cover plate and a base, a coil, an armature and a reset spring, a hollow support member is provided in the outer frame, the coil is wound around the outer end of the support member, the armature extends from the cover plate, one end of the reset spring is connected to the armature, and the other end is connected to the cover plate, which is used to reset the armature. A hollow connecting boss with an opening extends from the lower end of the armature, and a hollow connecting recess with an opening is fixedly provided in the support member. The connecting boss moves downward under the drive of the armature and is engaged and connected with the connecting recess; a pin is also connected to the open end of the connecting boss, and the pin extends from the connecting recess and passes through the base.

[0006] Furthermore, connecting parts are extended outward from both the upper and lower ends of the support member, and a placement groove is formed between the two connecting parts and the body of the support member, and the coil is wound along the direction of the placement groove.

[0007] Furthermore, a circle of grooves is provided at the top of the armature, and a leak-proof buckle is buckled between the grooves to prevent the armature from falling completely into the support member.

[0008] Furthermore, one end of the return spring is connected to the leak-proof buckle, and the other end is connected to the cover plate.

[0009] Furthermore, the leak-proof buckle includes an annular bottom, a first buckle body, a second buckle body and a third buckle body. The first buckle body and the second buckle body are respectively located at the two ends of the annular bottom, and the third buckle body is located between the first buckle body and the second buckle body. The three form a limiting cavity, and the groove is clamped in the limiting cavity.

[0010] Furthermore, the connecting recess passes through the base, and the bottom of the ejector pin extends outwardly to form an abutment portion, which abuts against the connecting recess to prevent the ejector pin from completely extending into the support member.

[0011] Furthermore, plug-in connectors are extended forward from both ends of the cover plate, and both sides of the base are recessed at corresponding positions to form receiving portions, and the plug-in connectors extend into the receiving portions to form a snap connection.

[0012] Furthermore, mounting parts are provided at both ends of the base, and mounting holes are provided on the two mounting parts.

[0013] The above one or more technical solutions in the external reset electromagnet structure provided by the embodiment of the utility model have at least the following technical effects:

[0014] Taking the refrigerator door control system as an example, the ejector pin is connected to the control panel of the refrigerator door, and the base is fixed on the refrigerator body. The support is a hollow design, and the coil is wound around the outer end of the support. The armature extends from the cover plate, one end of which is connected to the door control switch of the refrigerator door, and the other end is connected to the reset spring. The other end of the reset spring is connected to the cover plate. At the lower end of the armature, there is a hollow connecting boss with an opening. At the same time, a hollow connecting concave with an opening matching the connecting boss is fixed in the support. When the refrigerator door is opened, the armature moves downward under the action of the electromagnetic force, driving the connecting boss and the connecting concave to be engaged and connected for limiting, and the ejector pin is pressed down to trigger the door control switch of the refrigerator, realizing the opening function of the refrigerator. When the refrigerator door needs to be closed, the electromagnet is powered off, and the reset spring quickly resets the armature to the initial position. At this time, the connecting boss is separated from the connecting concave, the ejector pin is reset, the door control switch is unlocked, and the refrigerator door can be closed. By optimizing the reset method and structural design, the stability and reliability of the refrigerator door control system are improved, providing users with a more convenient and comfortable experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A structural diagram of an externally reset electromagnet structure provided in an embodiment of the utility model.

[0017] Figure 2 A cross-sectional view of an externally reset electromagnet structure provided in an embodiment of the utility model.

[0018] Figure 3A structural diagram of a leak-proof buckle with an externally reset electromagnet structure provided in an embodiment of the utility model.

[0019] Description of main reference numerals: 100, outer frame; 110, cover plate; 120, base; 130, coil; 140, return spring; 150, support member; 160, connecting boss; 170, connecting recess; 180, ejector pin; 190, armature;

[0020] 200, connecting part; 210, placement groove; 220, groove; 230, leak-proof buckle; 240, annular bottom; 250, first buckle body; 260, second buckle body; 270, third buckle body; 280, abutment part;

[0021] 300, connector; 310, receiving portion; 320, mounting portion; 330, mounting hole. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention in detail. Figures 1 to 3 , wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figures 1 to 3 The described embodiments are exemplary and are intended to be used to explain the embodiments of the present invention, but should not be construed as limiting the present invention.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0026] In the embodiment of the utility model, this case provides an external reset electromagnet structure, including an outer frame 100 formed by connecting a cover plate 110 and a base 120, a coil 130, an armature 190 and a reset spring 140, a hollow support member 150 is provided in the outer frame 100, the coil 130 is wound around the outer end of the support member 150, the armature 190 extends from the cover plate 110, one end of the reset spring 140 is connected to the armature 190, and the other end is connected to the cover plate 110, which is used to reset the armature 190. A hollow connecting boss 160 with an opening extends from the lower end of the armature 190, and a hollow connecting recess 170 with an opening is also fixedly provided in the support member 150. The connecting boss 160 moves downward under the drive of the armature 190 and is connected in an interlocking manner with the connecting recess 170; the open end of the connecting boss 160 is also connected to a pin 180, which extends from the connecting recess 170 and passes through the base 120.

[0027] Specifically, taking the refrigerator door control system as an example, the ejector pin 180 is connected to the control panel of the refrigerator door, and the base 120 is fixed on the refrigerator body. The support member 150 is a hollow design, and the coil 130 is wound around the outer end of the support member 150. The armature 190 extends from the cover plate 110, one end of which is connected to the door control switch of the refrigerator door, and the other end is connected to the return spring 140. The other end of the return spring 140 is connected to the cover plate 110. At the lower end of the armature 190, there is a hollow connecting boss 160 with an opening. At the same time, a hollow connecting concave platform 170 with an opening matching the connecting boss 160 is fixedly provided in the support member 150. When the refrigerator door is opened, the armature 190 moves downward under the action of the electromagnetic force, driving the connecting boss 160 to be engaged and connected with the connecting concave platform 170 for limiting, and the ejector pin 180 is pressed down to trigger the door control switch of the refrigerator, thereby realizing the opening function of the refrigerator. When the refrigerator door needs to be closed, the electromagnet is powered off, and the reset spring 140 quickly resets the armature 190 to the initial position. At this time, the connecting boss 160 is separated from the connecting concave 170, the ejector pin 180 is reset, the door control switch is unlocked, and the refrigerator door can be closed. By optimizing the reset method and structural design, the stability and reliability of the refrigerator door control system are improved, providing users with a more convenient and comfortable use experience.

[0028] In another embodiment of the utility model, the upper and lower ends of the support member 150 both extend outwardly with connecting parts 200, and a placement groove 210 is formed between the two connecting parts 200 and the body of the support member 150, and the coil 130 is wound along the direction of the placement groove 210. Specifically, the support member 150 can be made of a high-strength, high-insulation material to ensure its mechanical strength and electrical safety. Through the placement groove 210 formed by the connecting parts 200 at the upper and lower ends of the support member 150, the coil 130 can be more stably fixed on the support member 150, avoiding the performance degradation or failure caused by the looseness of the coil 130 during the operation of the electromagnet.

[0029] In another embodiment of the utility model, a circle of grooves 220 are provided at the top of the armature 190, and an anti-leakage buckle 230 is buckled between the grooves 220 to prevent the armature 190 from falling completely into the support member 150. One end of the reset spring 140 is connected to the anti-leakage buckle 230, and the other end is connected to the cover plate 110. The anti-leakage buckle 230 includes an annular bottom 240, a first buckle body 250, a second buckle body 260 and a third buckle body 270. The first buckle body 250 and the second buckle body 260 are respectively located at the two ends of the annular bottom 240, and the third buckle body 270 is located between the first buckle body 250 and the second buckle body 260. The three form a limiting cavity, and the groove 220 is clamped in the limiting cavity. Specifically, through the design of the anti-leakage buckle 230, the armature 190 can be effectively prevented from falling completely into the support member 150 during the operation, thereby avoiding the problem of electromagnet performance degradation or failure caused by the loss of control of the position of the armature 190. The design of the leak-proof buckle 230 makes the installation process of the armature 190 simpler and more convenient, thereby reducing the production cost and the difficulty of installation.

[0030] In another embodiment of the utility model, the connecting concave platform 170 passes through the base 120, and the bottom of the ejector pin 180 extends outward to form an abutment portion 280, which abuts against the connecting concave platform 170 to prevent the ejector pin 180 from completely extending into the support member 150. The abutment design between the abutment portion 280 and the connecting concave platform 170 can effectively prevent the ejector pin 180 from excessively extending during the operation, thereby avoiding the problem of damage to the internal device or mechanism caused by the uncontrolled position of the ejector pin 180.

[0031] In another embodiment of the utility model, the two ends of the cover plate 110 extend forwardly with the plug-in parts 300, and the two sides of the base 120 are recessed at corresponding positions to form receiving parts 310, and the plug-in parts 300 extend into the receiving parts 310 to form a snap connection. Through the snap connection design of the plug-in parts 300 and the receiving parts 310, the connection between the cover plate 110 and the base 120 is more stable, and the overall stability of the electromagnet is improved.

[0032] In another embodiment of the utility model, mounting parts 320 are further provided at both ends of the base 120, and mounting holes 330 are provided on the two mounting parts 320. The mounting holes 330 can be passed through the mounting holes 330 by a locking member to lock the base 120 on the refrigerator door to provide stability.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An externally reset electromagnet structure, characterized in that: It includes an outer frame formed by connecting a cover plate and a base, a coil, an armature and a reset spring, wherein a hollow support member is arranged in the outer frame member, the coil is wound around the outer end of the support member, the armature extends into the cover plate, one end of the reset spring is connected to the armature, and the other end is connected to the cover plate, so as to reset the armature; a hollow connecting boss with an opening extends from the lower end of the armature, a hollow connecting recess with an opening is also fixedly provided in the support member, the connecting boss moves downward when driven by the armature, and is engaged and connected with the connecting recess; a ejector pin is also connected to the open end of the connecting boss, and the ejector pin extends into the connecting recess and passes through the base.

2. The external resetting electromagnet structure according to claim 1, characterized in that: Connecting parts are extended outward from both upper and lower ends of the support member, and a placement groove is formed between the two connecting parts and the body of the support member, and the coil is wound along the direction of the placement groove.

3. The external resetting electromagnet structure according to claim 1, characterized in that: A circle of grooves is arranged at the top of the armature, and a leak-proof buckle is buckled between the grooves to prevent the armature from completely falling into the support member.

4. The externally reset electromagnet structure according to claim 3, characterized in that: One end of the return spring is connected to the leak-proof buckle, and the other end is connected to the cover plate.

5. The external resetting electromagnet structure according to claim 3, characterized in that: The leak-proof buckle includes an annular bottom, a first buckle body, a second buckle body and a third buckle body. The first buckle body and the second buckle body are respectively located at the two ends of the annular bottom, and the third buckle body is located between the first buckle body and the second buckle body. The three form a limiting cavity, and the groove is clamped in the limiting cavity.

6. The external resetting electromagnet structure according to claim 1, characterized in that: The connecting recess passes through the base, and a contact portion extends outward from the bottom of the ejector pin, and the contact portion contacts the connecting recess to prevent the ejector pin from completely extending into the support member.

7. The external resetting electromagnet structure according to claim 1, characterized in that: Connectors are extended forward from both ends of the cover plate, and both sides of the base are recessed at corresponding positions to form receiving portions, and the connectors extend into the receiving portions to form a snap connection.

8. The external resetting electromagnet structure according to claim 1, characterized in that: The two ends of the base are also provided with mounting parts, and the two mounting parts are provided with mounting holes.

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