Electric appliance protector capable of repeatedly memorizing temperature and current

Abstract

The invention relates to the technical field of current protectors, in particular to a current electrical appliance protector capable of repeatedly memorizing temperature, which is characterized in that a T-shaped core shaft in the prior art is improved into a cross-shaped core shaft, so that the movement stability of the whole core shaft is improved, and the movement distance of the cross-shaped core shaft in a ceramic tube is smaller than 0.5 mm, so that the movement range of the cross-shaped core shaft and a steel wire spring can be minimum; the fatigue degree of the steel wire spring is reduced, the stability and durability of a product are guaranteed, meanwhile, the cross-shaped mandrel is matched with the horn mouth sleeve installed at the bottom, one end of the cross-shaped mandrel can be supported, the cross-shaped mandrel is prevented from being scratched with the inner wall of the ceramic tube when moving, the current stability is improved, a fixed contact is omitted above the cross-shaped mandrel, and the service life of the product is prolonged. The inner end of the iron cap is directly conducted, the current conductivity is increased, the resistance value is reduced, the steel wire spring can be a three-jaw type sheet spring to increase the current conductivity, the current auxiliary flow is increased, and the product can be small in size and can adapt to high-current application at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of current protectors, in particular to a current appliance protector that repeatedly memorizes temperature. Background Art

[0002] With the rapid updates and changes in the electronics industry, the wide application of temperature fuses and temperature control switches can quickly cover the fields of household appliances, lighting products, motors, daily electrical appliances, communication products, etc. At present, the temperature protection devices for electronic components on the market are mainly disposable and self-recovery temperature fuses. The service life of these two products is short and cannot meet the technical requirements of long-term repeated use; they are also large in size, difficult to install on small appliances, complex in structure, and poor in stability.

[0003] Therefore, in view of the shortcomings of the prior art, it is necessary to provide a repeated memory temperature current appliance protector to solve the shortcomings of the prior art. Summary of the invention

[0004] The purpose of the present invention is to avoid the shortcomings of the prior art and provide a repeated memory temperature current electrical appliance protector. The present invention improves the T-shaped core shaft in the prior art into a cross core shaft to increase the stability of the overall core shaft movement. The cross core shaft can move within the minimum range of movement of the cross core shaft and the steel wire spring when the ceramic tube moves less than 0.5 mm, reducing the fatigue degree of the steel wire spring to ensure the stability and durability of the product. At the same time, the cross core shaft cooperates with the bell-mouth sleeve installed at the bottom to support one end of the cross core shaft, avoiding the cross core shaft from scratching the inner wall of the ceramic tube when moving, thereby increasing the current stability. The fixed contact above the cross core shaft is omitted, and the inner end of the iron cap is directly connected to increase the current conductivity and reduce the resistance value. The steel wire spring can use a three-claw leaf spring to increase the current conductivity and increase the current auxiliary flow, so that the product can be small in size and adapt to high current applications.

[0005] The above-mentioned purpose of the present invention is achieved through the following technical means.

[0006] Provided is a repeated memory temperature current electrical appliance protector, comprising a ceramic tube, wherein two groups of conducting iron caps are respectively installed at the upper and lower ends of the ceramic tube, the two groups of conducting iron caps are connected to the outside with lead wires, a cross mandrel is arranged inside the ceramic tube, the cross mandrel is movably installed inside the ceramic tube, a conducting gasket is installed between the top of the cross mandrel and the conducting iron cap, a shaft shoulder is arranged on the cross mandrel, a memory spring is installed on the upper half of the shaft shoulder, a steel wire spring is installed on the lower half of the shaft shoulder, a bell-mouth sleeve is installed at the bottom end of the ceramic tube, the front section of the bell-mouth sleeve is sleeved with one end of the cross mandrel, the bell-mouth sleeve is connected to the bottom of the ceramic tube and is tightly pressed with the conducting iron cap.

[0007] Specifically, the cross mandrel moves within the ceramic tube for a distance less than 0.5 mm.

[0008] Specifically, the bottom of the cross mandrel is movably inserted into the interior of the bell-mouth sleeve.

[0009] Specifically, the steel wire spring is installed on the outside of the bell-mouth sleeve for use in weak current products, and the steel wire spring is installed on the inside of the bell-mouth sleeve for use in strong current products.

[0010] Specifically, the memory spring and the steel wire spring are vertically mounted correspondingly at the upper and lower ends of the shoulder of the cross core shaft.

[0011] Preferably, two sets of conducting iron caps are installed at the upper and lower ends of the ceramic tube in a "U"-shaped structure.

[0012] Furthermore, a three-claw leaf spring is installed between the shaft shoulder of the cross core shaft and the bell-mouth sleeve, and the steel wire spring is arranged inside the bell-mouth sleeve, and the three-claw leaf spring is in contact with the outer wall of the bell-mouth sleeve.

[0013] The present invention improves the T-shaped core shaft in the prior art into a cross core shaft to increase the stability of the overall core shaft movement. The cross core shaft can move within the minimum range of movement of the cross core shaft and the steel wire spring when the ceramic tube moves less than 0.5 mm, thereby reducing the fatigue degree of the steel wire spring and ensuring the stability and durability of the product. At the same time, the cross core shaft cooperates with the bell-mouth sleeve installed at the bottom to support one end of the cross core shaft, thereby preventing the cross core shaft from scratching the inner wall of the ceramic tube when moving, thereby increasing the current stability. The fixed contact above the cross core shaft is omitted, and the inner end of the iron cap is directly connected to increase the current conductivity and reduce the resistance value. The steel wire spring can use a three-claw leaf spring to increase the current conductivity and increase the current auxiliary flow, so that the product can be small in size and adapt to high current applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0015] Figure 1 It is a front view of a temperature current electrical appliance protector capable of repeatedly memorizing the temperature of the present invention.

[0016] Figure 2 The present invention is a main cross-sectional view of a temperature current electrical appliance protector capable of repeatedly memorizing the temperature.

[0017] from Figure 1 to Figure 2 Including:

[0018] 1. Ceramic tube;

[0019] 2. Conductive iron cap;

[0020] 3. Pin line;

[0021] 4. Cross mandrel;

[0022] 5. Conductive gasket;

[0023] 6. Shoulder;

[0024] 7. Memory spring;

[0025] 8. Steel wire spring;

[0026] 9. Bell-mouth sleeve;

[0027] 10. Three-claw leaf spring. DETAILED DESCRIPTION

[0028] The present invention is further described in conjunction with the following examples.

[0029] Embodiment 1:

[0030] like Figure 1 As shown, a repeated memory temperature current electrical appliance protector comprises a ceramic tube 1, two groups of conducting iron caps 2 are respectively installed at the upper and lower ends of the ceramic tube 1, the two groups of conducting iron caps 2 are connected to the outside with pin wires 3, a cross core shaft 4 is arranged inside the ceramic tube 1, the cross core shaft 4 is movably installed inside the ceramic tube 1, a conducting gasket 5 is installed between the top of the cross core shaft 4 and the conducting iron cap 2, a shaft shoulder 6 is arranged on the cross core shaft 4, a memory spring 7 is installed on the upper half of the shaft shoulder 6, a steel wire spring 8 is installed on the lower half of the shaft shoulder 6, a bell-mouth sleeve 9 is installed at the bottom end of the ceramic tube 1, the bell-mouth sleeve 9 is connected to the bottom of the ceramic tube 1 and is tightly pressed with the conducting iron cap 2.

[0031] The T-shaped mandrel in the prior art in the ceramic tube 1 is changed into a cross mandrel 4, so as to increase the movement stability of the cross mandrel 4 when moving in the ceramic tube 1. Compared with the prior art, the present application omits the top mandrel above the cross mandrel 4, and directly connects the cross mandrel 4 to the inner end of the conductive iron cap 2 through the conductive gasket 5, so as to increase the current conductivity and reduce the resistance value. The length of the cross mandrel 4 inside the ceramic tube 1 is less than 0.5 mm, and the moving distance of the cross mandrel 4 is within 0.5 mm, which can play the role of braking within the minimum moving range of the cross mandrel 4, effectively protect the minimum moving range of the steel wire spring 8, reduce the fatigue degree of the steel wire spring 8, and ensure the stability and durability of the product. A shoulder 6 is integrally formed on the cross core shaft 4. The memory spring 7 installed on the top of the shoulder 6 and the steel wire spring 8 installed on the bottom are limited by the shoulder 6. During the movement, the memory spring 7 and the steel wire spring 8 push the shoulder 6 to drive the entire cross core shaft 4 to move, thereby improving the stability of the cross core shaft 4 during movement. At the same time, the bottom of the cross core shaft 4 is movably inserted into the inside of the bell-mouth sleeve 9 to avoid the cross core shaft 4 from scratching against the wall of the ceramic tube 1 and the inner side of the spring during movement, thereby greatly enhancing the stability of the product. The combination of the bell-mouth sleeve 9 and the cross core shaft 4 can increase the current conduction, and no longer relies on the steel wire spring 8 to increase the current. This product can achieve the advantages of small size and large current.

[0032] Embodiment 2:

[0033] like Figure 2 As shown, other structures of this embodiment are the same as those of Embodiment 1, and therefore are not described in detail. The difference lies in that a three-claw leaf spring 10 is installed between the shoulder 6 of the cross core shaft 4 and the bell-mouth sleeve 9, and the steel wire spring 8 is arranged inside the bell-mouth sleeve 9. The three-claw leaf spring 10 is in contact with the outer wall of the bell-mouth sleeve 9. The tripod on the cross core shaft 4 is to increase the flow of current so that the product can achieve the advantages of small size and large current, control the contact area between the three-claw leaf spring 10 and the bell-mouth sleeve 9, increase the current auxiliary flow, and enable the product to adapt to high current applications.

[0034] The present invention improves the T-shaped mandrel in the prior art into a cross mandrel to increase the stability of the movement of the entire mandrel 4. The moving distance of the cross mandrel 4 in the ceramic tube 1 is less than 0.5 mm, which can make the cross mandrel 4 and the steel wire spring 8 have a minimum moving range, reduce the fatigue degree of the steel wire spring 8, and ensure the stability and durability of the product. At the same time, the cross mandrel 4 cooperates with the bell-mouth sleeve 9 installed at the bottom to support one end of the cross mandrel 4, so as to avoid the cross mandrel 4 from scratching the inner wall of the ceramic tube 1 when moving, thereby increasing the current stability. The fixed contact above the cross mandrel 4 is omitted, and the inner end of the iron cap 2 is directly connected to increase the current conductivity and reduce the resistance value. The steel wire spring 8 can use a three-claw leaf spring 10 to increase the current conductivity and increase the current auxiliary flow, so that the product can be small in size and adapt to high current applications.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A repeated memory temperature current electrical appliance protector, characterized in that: It includes a ceramic tube, which has two groups of conducting iron caps installed at both ends of the upper and lower ends respectively, and the two groups of conducting iron caps are connected to the outside of the two groups of conducting iron caps. A cross core shaft is arranged inside the ceramic tube, and the cross core shaft is movably installed inside the ceramic tube. A conducting gasket is installed between the top of the cross core shaft and the conducting iron cap, and a shoulder is arranged on the cross core shaft. A memory spring is installed on the upper half of the shoulder, and a steel wire spring is installed on the lower half of the shoulder. A bell-mouth sleeve is installed at the bottom end of the ceramic tube, and the front section of the bell-mouth sleeve is sleeved with one end of the cross core shaft, and the bell-mouth sleeve is connected to the bottom of the ceramic tube and is tightly fitted with the conducting iron cap.

2. A repeated memory temperature current appliance protector according to claim 1, characterized in that: The cross mandrel moves within the ceramic tube for a distance less than 0.5 mm.

3. A repeated memory temperature current appliance protector according to claim 2, characterized in that: The bottom of the cross mandrel is movably plugged into the interior of the bell-mouth sleeve.

4. A repeated memory temperature current appliance protector according to claim 3, characterized in that: The steel wire spring is installed outside the bell-mouth sleeve for use in weak current products, and the steel wire spring is installed inside the bell-mouth sleeve for use in strong current products.

5. A repeated memory temperature current appliance protector according to claim 4, characterized in that: The memory spring and the steel wire spring are installed vertically and correspondingly at the upper and lower ends of the shoulder of the cross core shaft.

6. A repeated memory temperature current appliance protector according to claim 5, characterized in that: The two groups of conducting iron caps are installed at the upper and lower ends of the ceramic tube in a "U"-shaped structure.

7. The repeated memory temperature current appliance protector according to claim 1, characterized in that: A three-claw leaf spring is installed between the shaft shoulder of the cross core shaft and the bell-mouth sleeve, and the steel wire spring is arranged inside the bell-mouth sleeve. The three-claw leaf spring contacts the outer wall of the bell-mouth sleeve.

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