Multi-core thermal protection device

Abstract

The multi-core temperature fuse includes a housing, a first temperature fuse, and a second temperature fuse. The first temperature fuse includes a first temperature sensing pin, a first temperature-sensitive metal portion, and a first circuit board connection pin. The first temperature-sensitive metal portion is connected to the first temperature sensing pin and the first circuit board connection pin. The first temperature-sensitive metal portion is disposed within the housing, while the first temperature sensing pin and the first circuit board connection pin pass through the housing. The second temperature fuse includes a second temperature sensing pin, a second temperature-sensitive metal portion, and a second circuit board connection pin. The second temperature-sensitive metal portion is connected to the second temperature sensing pin and the second circuit board connection pin. The second temperature-sensitive metal portion is disposed within the housing, while the second temperature sensing pin and the second circuit board connection pin pass through the housing.

Description

Technical Field

[0001] This utility model relates to a temperature protection device, and more particularly to a multi-core temperature protection device. Background Technology

[0002] Thermal fuses are a common circuit component. A lamp driver circuit typically uses one or more thermal fuses, but existing thermal fuses still have many shortcomings that need to be improved.

[0003] For example, existing thermal fuses have a fixed protection temperature and can only provide protection at a single temperature level, not multiple temperature levels. As the temperature of a product equipped with a thermal fuse gradually increases, the thermal fuse may fail to provide protection in the initial overheating state, causing irreversible damage to the product when it reaches a severely overheated state.

[0004] For example, existing thermal fuses require multiple reshaping and adjustments during installation to ensure smooth subsequent soldering steps. However, these soldering steps can easily deform the thermal fuse structure, necessitating a re-fixing process using adhesive, which significantly reduces production efficiency and costs.

[0005] For example, the design of existing thermal fuses makes it easy for heat energy conducted to their temperature-sensitive metal parts to be dissipated, resulting in poor sensitivity and unreliability of existing thermal fuses.

[0006] For example, the existing thermal fuse structure cannot be adapted to lamps of different shapes and sizes, which greatly limits its application. Utility Model Content

[0007] According to one embodiment of the present invention, a multi-core temperature fuse device is provided, comprising a housing, a first temperature fuse, and a second temperature fuse. The first temperature fuse includes a first temperature sensing pin, a first temperature-sensitive metal portion, and a first circuit board connection pin. The first temperature-sensitive metal portion is connected to the first temperature sensing pin and the first circuit board connection pin. The first temperature-sensitive metal portion is disposed within the housing, while the first temperature sensing pin and the first circuit board connection pin pass through the housing. The second temperature fuse includes a second temperature sensing pin, a second temperature-sensitive metal portion, and a second circuit board connection pin. The second temperature-sensitive metal portion is connected to the second temperature sensing pin and the second circuit board connection pin. The second temperature-sensitive metal portion is disposed within the housing, while the second temperature sensing pin and the second circuit board connection pin pass through the housing.

[0008] In one embodiment, the melting temperature of the first temperature-sensitive metal part is different from that of the second temperature-sensitive metal part.

[0009] In one embodiment, the first temperature detection pin, the first circuit board connection pin, the second temperature detection pin, and the second circuit board connection pin all extend from one side of the housing.

[0010] In one embodiment, the extending directions of the first temperature sensing pin and the second temperature sensing pin are opposite to the extending directions of the first circuit board connection pin and the second circuit board connection pin.

[0011] In one embodiment, each of the first circuit board connector pin and the second circuit board connector pin includes an insulating sleeve and a conductive wire. The insulating sleeve covers the conductive wire.

[0012] In one embodiment, the multi-core temperature fuse further includes a third temperature fuse. The third temperature fuse includes a third temperature sensing pin, a third temperature-sensitive metal portion, and a third circuit board connection pin. The third temperature-sensitive metal portion is connected to the third temperature sensing pin and the third circuit board connection pin. The third temperature-sensitive metal portion is disposed within the housing, while the third temperature sensing pin and the third circuit board connection pin pass through the housing.

[0013] In one embodiment, the melting temperatures of the first temperature-sensitive metal part, the second temperature-sensitive metal part, and the third temperature-sensitive metal part are different from each other.

[0014] In one embodiment, the third circuit board connector includes an insulating sleeve and a conductive wire. The insulating sleeve covers the conductive wire.

[0015] In one embodiment, the first temperature detection pin, the first circuit board connection pin, the second temperature detection pin, the second circuit board connection pin, the third temperature detection pin, and the third circuit board connection pin all extend from one side of the housing.

[0016] In one embodiment, the extension directions of the first temperature detection pin, the second temperature detection pin, and the third temperature detection pin are opposite to the extension directions of the first circuit board connection pin, the second circuit board connection pin, and the third circuit board connection pin.

[0017] As described above, the LED lamp according to this utility model may have one or more of the following advantages:

[0018] (1) In one embodiment of this utility model, the multi-core temperature fuse includes a housing, a first temperature fuse, and a second temperature fuse. The first temperature fuse includes a first temperature detection pin, a first temperature-sensitive metal part, and a first circuit board connection pin. The first temperature-sensitive metal part is connected to the first temperature detection pin and the first circuit board connection pin. The first temperature-sensitive metal part is disposed inside the housing, while the first temperature detection pin and the first circuit board connection pin pass through the housing. The second temperature fuse includes a second temperature detection pin, a second temperature-sensitive metal part, and a second circuit board connection pin. The second temperature-sensitive metal part is connected to the second temperature detection pin and the second circuit board connection pin. The second temperature-sensitive metal part is disposed inside the housing, while the second temperature detection pin and the second circuit board connection pin pass through the housing. The melting temperature of the first temperature-sensitive metal part is different from that of the second temperature-sensitive metal part. As can be seen from the above, the multi-core temperature fuse has a first temperature fuse and a second temperature fuse with different temperature settings to provide a protection mechanism for multiple temperature levels. Therefore, the protection effect of the multi-core temperature fuse can be greatly improved, enabling the multi-core temperature fuse to achieve high safety. Furthermore, because the conductive wires of the first and second circuit board connectors are made of a conductive material with low thermal conductivity, the heat conducted to the first and second temperature-sensitive metal parts is not easily dissipated through the connectors, resulting in a faster temperature rise rate for the first and second temperature-sensitive metal parts. Therefore, the sensitivity and reliability of the multi-core temperature protection device can be significantly improved.

[0019] (2) In one embodiment of this utility model, each of the multiple thermal fuses in the multi-core thermal fuse device can provide independent protection. Therefore, even if one of the thermal fuses in the multi-core thermal fuse device blows, the other thermal fuse in the multi-core thermal fuse device can still provide protection. Thus, the safety performance of the multi-core thermal fuse device is further improved.

[0020] (3) In one embodiment of this utility model, the multi-core temperature fuse device integrates multiple temperature fuses with different temperature settings, thus directly replacing the function of multiple existing temperature fuses. Therefore, users only need to perform the installation process once, which greatly improves the production efficiency of the product and reduces the production cost. Therefore, the multi-core temperature fuse device can meet the needs of practical applications.

[0021] (4) In one embodiment of this utility model, the first and second temperature fuses of the multi-core temperature fuse device are arranged side by side. Furthermore, the first temperature detection pin and the first circuit board connection pin of the first temperature fuse, and the second temperature detection pin and the second circuit board connection pin of the second temperature fuse, both extend from one side of the housing. The extending directions of the first temperature detection pin of the first temperature fuse and the second temperature detection pin of the second temperature fuse are opposite to the extending directions of the first circuit board connection pin of the first temperature fuse and the second circuit board connection pin of the second temperature fuse. This structural design allows the multi-core temperature fuse device to adapt to lamps of different shapes and sizes, making its application more widespread and meeting the needs of different applications.

[0022] (5) In one embodiment of this utility model, the multi-core temperature protection device has a simple design, thus achieving the desired effect while reducing costs. Therefore, the practicality of the multi-core temperature protection device can be greatly improved to meet the needs of different products. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the multi-core temperature protection device according to the first embodiment of this utility model.

[0024] Figure 2 This is an equivalent circuit diagram of the multi-core temperature fuse device according to the first embodiment of this utility model.

[0025] Figure 3 This is a schematic diagram of the structure of the multi-core temperature protection device according to the second embodiment of this utility model.

[0026] Figure 4 This is an equivalent circuit diagram of the multi-core temperature fuse device according to the second embodiment of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Multi-core thermal fuse; 11-Housing; 12-First thermal fuse; 121-First temperature sensing pin; 122-First temperature-sensitive metal part; 123-First circuit board connection pin; 13-Second thermal fuse; 131-Second temperature sensing pin; 132-Second temperature-sensitive metal part; 133-Second circuit board connection pin; 14-Third thermal fuse; 141-Third temperature sensing pin; 142-Third temperature-sensitive metal part; 143-Third circuit board connection pin.

[0029] The following detailed description of the features and advantages of this utility model in the embodiments is sufficient to enable anyone skilled in the art to understand the technical content of this utility model and implement it accordingly. Based on the content disclosed in this specification, the claims and drawings, anyone skilled in the art can easily understand the related objectives and advantages of this utility model. Detailed Implementation

[0030] The following description, with reference to the accompanying drawings, illustrates embodiments of the multi-core temperature protection device according to this utility model. For clarity and ease of illustration, the dimensions and proportions of the components in the drawings may be exaggerated or reduced. In the following description and / or claims, when a component is referred to as "connected" or "coupled" to another component, it may be directly connected or coupled to that other component or there may be an intervening component; when a component is referred to as "directly connected" or "directly coupled" to another component, there is no intervening component. Other terms used to describe the relationship between components or layers should be interpreted in the same manner. For ease of understanding, the same components in the following embodiments are indicated by the same symbols.

[0031] Please see Figure 1 and Figure 2 . Figure 1 This is a schematic diagram of the structure of the multi-core temperature protection device according to the first embodiment of this utility model. Figure 2 This is an equivalent circuit diagram of the multi-core thermal fuse device according to the first embodiment of the present invention. As shown in the figure, the multi-core thermal fuse device 1 includes a housing 11, a first thermal fuse 12, and a second thermal fuse 13.

[0032] The first temperature fuse 12 includes a first temperature sensing pin 121, a first temperature-sensitive metal portion 122, and a first circuit board connection pin 123. The first temperature-sensitive metal portion 122 is connected to the first temperature sensing pin 121 and the first circuit board connection pin 123. The first temperature-sensitive metal portion 122 is disposed within the housing 11, while the first temperature sensing pin 121 and the first circuit board connection pin 123 pass through the housing 11. The first circuit board connection pin 123 includes an insulating sleeve and a conductive wire. The insulating sleeve covers the conductive wire. In one embodiment, the insulating sleeve may be a PET sleeve or other plastic sleeve. In one embodiment, the conductive wire may be a tin-plated copper-clad steel wire or a tin-plated copper-clad iron wire. Therefore, the conductive wire may be made of a conductive material with low thermal conductivity. In one embodiment, the material of the first temperature-sensitive metal portion 122 may be a lead-tin alloy, zinc, copper, silver, etc.

[0033] The second temperature fuse 13 includes a second temperature sensing pin 131, a second temperature-sensitive metal portion 132, and a second circuit board connection pin 133. The second temperature-sensitive metal portion 132 is connected to the second temperature sensing pin 131 and the second circuit board connection pin 133. The second temperature-sensitive metal portion 132 is disposed within the housing 11, while the second temperature sensing pin 131 and the second circuit board connection pin 133 pass through the housing 11. Similarly, the second circuit board connection pin 133 includes an insulating sleeve and a conductive wire. The insulating sleeve covers the conductive wire. In one embodiment, the material of the second temperature-sensitive metal portion 132 may be a lead-tin alloy, zinc, copper, silver, etc. In this embodiment, the melting temperature of the first temperature-sensitive metal portion 122 is different from the melting temperature of the second temperature-sensitive metal portion 132. In another embodiment, the melting temperature of the first temperature-sensitive metal portion 122 and the melting temperature of the second temperature-sensitive metal portion 132 may also be the same.

[0034] Depend on Figure 1 As can be seen, the first temperature fuse 12 and the second temperature fuse 13 are arranged side by side. The first temperature detection pin 121, the first circuit board connection pin 123, the second temperature detection pin 131, and the second circuit board connection pin 133 all protrude from the same side of the housing 11. However, the first temperature detection pin 121 and the second temperature detection pin 131 extend upwards, while the first circuit board connection pin 123 and the second circuit board connection pin 133 extend downwards. Therefore, the extension directions of the first temperature detection pin 121 and the second temperature detection pin 131 are opposite to the extension directions of the first circuit board connection pin 123 and the second circuit board connection pin 133, forming an M-shaped structure. The above structural design allows the multi-core temperature fuse device 1 to adapt to lamps of different shapes and sizes, making its application more widespread. The multi-core temperature fuse device 1 can also be modified according to actual needs to meet the requirements of different applications.

[0035] Furthermore, since the conductive lines of the first circuit board connector 123 and the second circuit board connector 133 are made of a conductive material with low thermal conductivity, the heat conducted to the first temperature-sensitive metal part 122 and the second temperature-sensitive metal part 132 is not easily dissipated through the first circuit board connector 123 and the second circuit board connector 133, resulting in a faster heating rate for the first temperature-sensitive metal part 122 and the second temperature-sensitive metal part 132. Therefore, the sensitivity and reliability of the multi-core temperature protection device 1 can be significantly improved.

[0036] In another embodiment, the first temperature sensing pin 121 and the second temperature sensing pin 131 can protrude from one side of the housing 11, while the first circuit board connecting pin 123 and the second circuit board connecting pin 133 can protrude from the other side of the housing 11. The above structure can be adjusted according to actual needs, and this utility model is not limited thereto.

[0037] The first temperature detection pin 121 and the second temperature detection pin 131 can be connected to different heat sources, while the first circuit board connection pin 123 and the second circuit board connection pin 133 are connected to the circuit board, so that these heat sources are electrically connected to the circuit board.

[0038] For example, the first temperature sensing pin 121 can be connected to one pin of the lamp holder, and the second temperature sensing pin 131 can be connected to another pin of the lamp holder. The melting temperature of the first temperature-sensitive metal part 122 can be 100 degrees Celsius, and the melting temperature of the second temperature-sensitive metal part 132 can be 135 degrees Celsius. Thus, when the first temperature-sensitive metal part 122 melts, a primary protection mechanism can be triggered, such as issuing a primary warning signal, reducing operating speed, or shutting down part of the circuit. When the second temperature-sensitive metal part 132 melts, an advanced protection mechanism can be triggered, such as issuing an advanced warning signal or completely cutting off the power supply. In another embodiment, the melting temperature of the first temperature-sensitive metal part 122 can be 110 degrees Celsius, and the melting temperature of the second temperature-sensitive metal part 132 can be 145 degrees Celsius. The melting temperatures of both the first and second temperature-sensitive metal parts 122 and 132 can be adjusted according to actual needs. In another embodiment, the first temperature sensing pin 121 and the second temperature sensing pin 131 may also be connected to the same heat source, such as a controller; the melting temperatures of the first temperature-sensitive metal part 122 and the second temperature-sensitive metal part 132 may also be the same.

[0039] As described above, in this embodiment, the multi-core temperature fuse 1 has a first temperature fuse 12 and a second temperature fuse 13 with different temperature settings to provide a protection mechanism for multiple temperature levels. Therefore, the protection effect of the multi-core temperature fuse 1 can be greatly improved, enabling it to achieve high safety.

[0040] Furthermore, in this embodiment, each of the multiple thermal fuses in the multi-core thermal fuse device 1 can provide independent protection. Therefore, even if one of the thermal fuses in the multi-core thermal fuse device 1 blows, the other thermal fuse in the multi-core thermal fuse device 1 can still provide protection. Thus, the safety performance of the multi-core thermal fuse device 1 is further improved.

[0041] Furthermore, in this embodiment, the multi-core thermal fuse device 1 integrates multiple thermal fuses with different temperature settings, thus directly replacing the function of multiple existing thermal fuses. Therefore, users only need to perform an installation procedure once, significantly improving product production efficiency and reducing production costs. Therefore, the multi-core thermal fuse device 1 meets the needs of practical applications.

[0042] Of course, this embodiment is only used for illustration and is not intended to limit the scope of this utility model. Equivalent modifications or changes made to the multi-core temperature protection device according to this embodiment should still be included within the patent scope of this utility model.

[0043] It is worth noting that existing thermal fuses have a fixed protection temperature, providing only a single temperature level protection mechanism and not multiple temperature levels. As the temperature of a product equipped with a thermal fuse gradually rises, the fuse may fail to provide protection in the initial overheating state, leading to irreversible damage when the product reaches a severely overheated state. For example, existing thermal fuses require multiple shaping and adjustments during installation to ensure smooth subsequent soldering steps. However, these soldering steps can easily deform the fuse structure, requiring re-fixation with adhesive, significantly reducing production efficiency and costs. Furthermore, the structure of existing thermal fuses cannot adapt to lamps of different shapes and sizes, greatly limiting their application. Additionally, the design of existing thermal fuses allows heat conducted to their temperature-sensitive metal parts to be easily dissipated, resulting in poor sensitivity and requiring improved reliability. In contrast, according to an embodiment of this utility model, the multi-core thermal fuse device includes a housing, a first thermal fuse, and a second thermal fuse. The first thermal fuse includes a first temperature detection pin, a first temperature-sensitive metal part, and a first circuit board connection pin. The first temperature-sensitive metal part is connected to the first temperature detection pin and the first circuit board connection pin. The first temperature-sensitive metal part is disposed inside the housing, while the first temperature detection pin and the first circuit board connection pin pass through the housing. The second temperature fuse includes a second temperature detection pin, a second temperature-sensitive metal part, and a second circuit board connection pin. The second temperature-sensitive metal part is connected to the second temperature detection pin and the second circuit board connection pin. The second temperature-sensitive metal part is disposed inside the housing, while the second temperature detection pin and the second circuit board connection pin pass through the housing. The melting temperature of the first temperature-sensitive metal part is different from that of the second temperature-sensitive metal part. As can be seen from the above, the multi-core temperature fuse device has a first temperature fuse and a second temperature fuse with different temperature settings to provide protection mechanisms for multiple temperature levels. Therefore, the protection effect of the multi-core temperature fuse device can be greatly improved, enabling the multi-core temperature fuse device to achieve high safety. In addition, the conductive wires of the first circuit board connection pin and the second circuit board connection pin are made of conductive materials with low thermal conductivity. Therefore, the heat conducted to the first and second temperature-sensitive metal parts is less likely to be dissipated through the first and second circuit board connectors, resulting in a faster heating rate for the first and second temperature-sensitive metal parts. Consequently, the sensitivity and reliability of the multi-core temperature protection device can be significantly improved.

[0044] Furthermore, according to embodiments of this invention, each of the multiple thermal fuses in the multi-core thermal fuse device can provide independent protection. Therefore, even if one thermal fuse in the multi-core thermal fuse device blows, the other thermal fuse can still provide protection. Thus, the safety performance of the multi-core thermal fuse device is further improved.

[0045] Furthermore, according to embodiments of this invention, the multi-core temperature fuse device integrates multiple temperature fuses with different temperature settings, thus directly replacing the function of multiple existing temperature fuses. Therefore, users only need to perform one installation procedure, significantly improving product production efficiency while reducing production costs. Therefore, the multi-core temperature fuse device meets the needs of practical applications.

[0046] Furthermore, according to an embodiment of this utility model, the first and second temperature fuses of the multi-core temperature fuse device are arranged side by side. Additionally, the first temperature detection pin and the first circuit board connection pin of the first temperature fuse, and the second temperature detection pin and the second circuit board connection pin of the second temperature fuse, both extend from one side of the housing. The extending directions of the first temperature detection pin of the first temperature fuse and the second temperature detection pin of the second temperature fuse are opposite to the extending directions of the first circuit board connection pin of the first temperature fuse and the second circuit board connection pin of the second temperature fuse. This structural design allows the multi-core temperature fuse device to adapt to lamps of different shapes and sizes, making its application more widespread and meeting the needs of various applications.

[0047] Furthermore, according to the embodiments of this utility model, the multi-core temperature protection device has a simple design, thus achieving the desired effect while reducing costs. Therefore, the practicality of the multi-core temperature protection device can be greatly improved to meet the needs of different products. As can be seen from the above, the multi-core temperature protection device according to the embodiments of this utility model can indeed achieve excellent technical results.

[0048] Please see Figure 3 and Figure 4 . Figure 3 This is a schematic diagram of the structure of the multi-core temperature protection device according to the second embodiment of this utility model. Figure 4 This is an equivalent circuit diagram of a multi-core thermal fuse device according to a second embodiment of the present invention. As shown in the figure, the multi-core thermal fuse device 1 includes a housing 11, a first thermal fuse 12, and a second thermal fuse 13.

[0049] The first temperature fuse 12 includes a first temperature sensing pin 121, a first temperature-sensitive metal portion 122, and a first circuit board connection pin 123. The first temperature-sensitive metal portion 122 is connected to the first temperature sensing pin 121 and the first circuit board connection pin 123. The first temperature-sensitive metal portion 122 is disposed within the housing 11, while the first temperature sensing pin 121 and the first circuit board connection pin 123 pass through the housing 11. The first circuit board connection pin 123 includes an insulating sleeve and a conductive wire. The insulating sleeve covers the conductive wire.

[0050] The second temperature fuse 13 includes a second temperature sensing pin 131, a second temperature-sensitive metal portion 132, and a second circuit board connection pin 133. The second temperature-sensitive metal portion 132 is connected to the second temperature sensing pin 131 and the second circuit board connection pin 133. The second temperature-sensitive metal portion 132 is disposed within the housing 11, while the second temperature sensing pin 131 and the second circuit board connection pin 133 pass through the housing 11. The second circuit board connection pin 133 includes an insulating sleeve and a conductive wire. The insulating sleeve covers the conductive wire.

[0051] The components described above are similar to those in the previous embodiments, and therefore will not be repeated here. Unlike the previous embodiments, the multi-core temperature fuse 1 in this embodiment also includes a third temperature fuse 14.

[0052] The third temperature fuse 14 includes a third temperature sensing pin 141, a third temperature-sensitive metal portion 142, and a third circuit board connection pin 143. The third temperature-sensitive metal portion 142 is connected to the third temperature sensing pin 141 and the third circuit board connection pin 143. The third temperature-sensitive metal portion 142 is disposed within the housing 11, while the third temperature sensing pin 141 and the third circuit board connection pin 143 pass through the housing 11. The third circuit board connection pin 143 includes an insulating sleeve and a conductive wire. The insulating sleeve covers the conductive wire. In one embodiment, the insulating sleeve may be a PET sleeve or other plastic sleeve. In one embodiment, the conductive wire may be a tin-plated copper-clad steel wire or a tin-plated copper-clad iron wire. Therefore, the conductive wire may be made of a conductive material with low thermal conductivity. In one embodiment, the material of the third temperature-sensitive metal portion 142 may be a lead-tin alloy, zinc, copper, silver, etc. In this embodiment, the melting temperatures of the first temperature-sensitive metal portion 122, the second temperature-sensitive metal portion 132, and the third temperature-sensitive metal portion 142 are different from each other. In another embodiment, the melting temperatures of the first temperature-sensitive metal portion 122, the second temperature-sensitive metal portion 132, and the third temperature-sensitive metal portion 142 may also be the same.

[0053] Depend on Figure 3As can be seen, the first thermal fuse 12, the second thermal fuse 13, and the third thermal fuse 14 are arranged side by side. The first temperature detection pin 121, the first circuit board connection pin 123, the second temperature detection pin 131, the second circuit board connection pin 133, the third temperature detection pin 141, and the third circuit board connection pin 143 all protrude from the same side of the housing 11. However, the first temperature detection pin 121, the second temperature detection pin 131, and the third temperature detection pin 141 extend upwards, while the first circuit board connection pin 123, the second circuit board connection pin 133, and the third circuit board connection pin 143 extend downwards. Therefore, the extension directions of the first temperature detection pin 121, the second temperature detection pin 131, and the third temperature detection pin 141 are opposite to the extension directions of the first circuit board connection pins 123, the second circuit board connection pin 133, and the third circuit board connection pin 143. This structural design allows the multi-core thermal fuse device 1 to adapt to lamps of different shapes and sizes, thus broadening its application. The multi-core temperature protection device 1 can also be modified according to actual needs to meet the requirements of different applications.

[0054] Furthermore, since the conductive lines of the first circuit board connector 123, the second circuit board connector 133, and the third circuit board connector 143 are made of conductive materials with low thermal conductivity, the heat conducted to the first temperature-sensitive metal part 122, the second temperature-sensitive metal part 132, and the third temperature-sensitive metal part 142 is not easily dissipated through these connectors, resulting in a faster temperature rise rate for the first temperature-sensitive metal part 122, the second temperature-sensitive metal part 132, and the third temperature-sensitive metal part 142. Therefore, the sensitivity and reliability of the multi-core temperature protection device 1 can be significantly improved.

[0055] In another embodiment, the first temperature detection pin 121, the second temperature detection pin 131, and the third temperature detection pin 141 can protrude from one side of the housing 11, while the first circuit board connection pin 123, the second circuit board connection pin 133, and the third circuit board connection pin 143 can protrude from the other side of the housing 11. The above structure can be adjusted according to actual needs, and this utility model is not limited thereto.

[0056] The first temperature detection pin 121, the second temperature detection pin 131, and the third temperature detection pin 141 can be connected to different heat sources, while the first circuit board connection pin 123, the second circuit board connection pin 133, and the third circuit board connection pin 143 are connected to the circuit board, making these heat sources electrically connected to the circuit board. In another embodiment, the first temperature detection pin 121, the second temperature detection pin 131, and the third temperature detection pin 141 can also be connected to the same heat source.

[0057] As described above, in this embodiment, the multi-core temperature fuse 1 has a first temperature fuse 12, a second temperature fuse 13, and a third temperature fuse 14 with different temperature settings to provide protection mechanisms for multiple temperature levels. Therefore, the protection effect of the multi-core temperature fuse 1 can be greatly improved, enabling it to achieve high safety.

[0058] In another embodiment, the multi-core temperature fuse device 1 may also have four or more temperature fuses. The number of temperature fuses can be changed according to actual needs, and this utility model is not limited thereto.

[0059] In summary, according to the embodiments of this utility model, the multi-core temperature fuse includes a housing, a first temperature fuse, and a second temperature fuse. The first temperature fuse includes a first temperature sensing pin, a first temperature-sensitive metal portion, and a first circuit board connection pin. The first temperature-sensitive metal portion is connected to the first temperature sensing pin and the first circuit board connection pin. The first temperature-sensitive metal portion is disposed within the housing, while the first temperature sensing pin and the first circuit board connection pin pass through the housing. The second temperature fuse includes a second temperature sensing pin, a second temperature-sensitive metal portion, and a second circuit board connection pin. The second temperature-sensitive metal portion is connected to the second temperature sensing pin and the second circuit board connection pin. The second temperature-sensitive metal portion is disposed within the housing, while the second temperature sensing pin and the second circuit board connection pin pass through the housing. The melting temperatures of the first and second temperature-sensitive metal portions are different. As can be seen from the above, the multi-core temperature fuse has first and second temperature fuses with different temperature settings to provide protection mechanisms for multiple temperature levels. Therefore, the protection effect of the multi-core temperature fuse can be significantly improved, enabling the multi-core temperature fuse to achieve high safety. Furthermore, because the conductive wires of the first and second circuit board connectors are made of a conductive material with low thermal conductivity, the heat conducted to the first and second temperature-sensitive metal parts is not easily dissipated through the connectors, resulting in a faster temperature rise rate for the first and second temperature-sensitive metal parts. Therefore, the sensitivity and reliability of the multi-core temperature protection device can be significantly improved.

[0060] Furthermore, according to embodiments of this invention, each of the multiple thermal fuses in the multi-core thermal fuse device can provide independent protection. Therefore, even if one thermal fuse in the multi-core thermal fuse device blows, the other thermal fuse can still provide protection. Thus, the safety performance of the multi-core thermal fuse device is further improved.

[0061] Furthermore, according to embodiments of this invention, the multi-core temperature fuse device integrates multiple temperature fuses with different temperature settings, thus directly replacing the function of multiple existing temperature fuses. Therefore, users only need to perform one installation procedure, significantly improving product production efficiency while reducing production costs. Therefore, the multi-core temperature fuse device meets the needs of practical applications.

[0062] Furthermore, according to an embodiment of this utility model, the first and second temperature fuses of the multi-core temperature fuse device are arranged side by side. Additionally, the first temperature detection pin and the first circuit board connection pin of the first temperature fuse, and the second temperature detection pin and the second circuit board connection pin of the second temperature fuse, both extend from one side of the housing. The extending directions of the first temperature detection pin of the first temperature fuse and the second temperature detection pin of the second temperature fuse are opposite to the extending directions of the first circuit board connection pin of the first temperature fuse and the second circuit board connection pin of the second temperature fuse. This structural design allows the multi-core temperature fuse device to adapt to lamps of different shapes and sizes, making its application more widespread and meeting the needs of various applications.

[0063] Furthermore, according to the embodiments of this utility model, the multi-core temperature protection device has a simple design, thus achieving the desired effect while reducing costs. Therefore, the practicality of the multi-core temperature protection device can be greatly improved to meet the needs of different products.

[0064] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.

Claims

1. A multi-core temperature protection device, characterized in that, Include: case; The first temperature fuse includes a first temperature sensing pin, a first temperature-sensitive metal part, and a first circuit board connection pin. The first temperature-sensitive metal part is connected to the first temperature sensing pin and the first circuit board connection pin. The first temperature-sensitive metal part is disposed inside the housing, while the first temperature sensing pin and the first circuit board connection pin pass through the housing. as well as The second temperature fuse includes a second temperature sensing pin, a second temperature-sensitive metal part, and a second circuit board connection pin. The second temperature-sensitive metal part is connected to the second temperature sensing pin and the second circuit board connection pin. The second temperature-sensitive metal part is disposed inside the housing, while the second temperature sensing pin and the second circuit board connection pin pass through the housing.

2. The multi-core temperature protection device as described in claim 1, characterized in that, The melting temperature of the first temperature-sensitive metal part is different from that of the second temperature-sensitive metal part.

3. The multi-core temperature protection device as described in claim 1, characterized in that, The first temperature detection pin, the first circuit board connection pin, the second temperature detection pin, and the second circuit board connection pin all protrude from one side of the housing.

4. The multi-core temperature protection device as described in claim 1, characterized in that, The extension directions of the first temperature sensing pin and the second temperature sensing pin are opposite to the extension directions of the first circuit board connection pin and the second circuit board connection pin.

5. The multi-core temperature protection device as described in claim 1, characterized in that, Each of the first circuit board connector pin and the second circuit board connector pin includes an insulating sleeve and a conductive wire, wherein the insulating sleeve covers the conductive wire.

6. The multi-core temperature protection device as described in claim 1, characterized in that, It also includes a third temperature fuse, which includes a third temperature sensing pin, a third temperature-sensitive metal part, and a third circuit board connection pin. The third temperature-sensitive metal part is connected to the third temperature sensing pin and the third circuit board connection pin. The third temperature-sensitive metal part is disposed inside the housing, while the third temperature sensing pin and the third circuit board connection pin pass through the housing.

7. The multi-core temperature protection device as described in claim 6, characterized in that, The melting temperatures of the first temperature-sensitive metal part, the second temperature-sensitive metal part, and the third temperature-sensitive metal part are different from each other.

8. The multi-core temperature protection device as described in claim 6, characterized in that, The third circuit board connector includes an insulating sleeve and a conductive wire, with the insulating sleeve covering the conductive wire.

9. The multi-core temperature protection device as described in claim 6, characterized in that, The first temperature detection pin, the first circuit board connection pin, the second temperature detection pin, the second circuit board connection pin, the third temperature detection pin, and the third circuit board connection pin all protrude from one side of the housing.

10. The multi-core temperature protection device as described in claim 9, characterized in that, The extension directions of the first temperature detection pin, the second temperature detection pin, and the third temperature detection pin are opposite to the extension directions of the first circuit board connection pin, the second circuit board connection pin, and the third circuit board connection pin.

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