Safety module and heating assembly comprising same

Abstract

The utility model provides a fuse module and a heating assembly comprising the same, and belongs to the technical field of battery heating, the fuse module comprises a substrate, at least one first connecting piece and a second connecting piece, the substrate is provided with at least one fuse line, the first connecting piece is arranged on the substrate, and the second connecting piece is arranged on the substrate. The first connecting piece is provided with a first input end and a first output end, the first input end is connected with the first end of the fuse line, and the first output end is suitable for being connected with a heating piece; and the second connecting piece is arranged on the substrate, the second connecting piece is provided with a second input end and at least one second output end, the second output end is connected with the second end of the fuse line, and the second input end is suitable for being connected with a power supply. The fuse circuit, the first connecting piece and the second connecting piece are integrated on the substrate, the heating piece is connected with the power supply through the fuse module, and the safety of the heating assembly is improved due to the arrangement of the fuse circuit, so that the heating assembly has important significance on reducing the safety risk of the battery pack.

Description

Technical Field

[0001] The utility model relates to the technical field of PTC heating, in particular to a safety module and a heating component comprising the same. Background Art

[0002] Currently, secondary batteries have been widely used in power battery systems or household energy storage systems. However, in low temperature environments, the charging and discharging performance of batteries is greatly limited. In order to improve the charging and discharging performance of secondary batteries in low temperature environments, they need to be heated.

[0003] Currently, the most commonly used solution is heating through a PTC heating film. In order to prevent short-circuit failure, a fuse needs to be added to the heating film separately. However, since the heating film process is screen-printed, it is difficult to etch the fuse directly on the heating film. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that when heating is performed by a PTC heating film, a fuse needs to be added thereto, but it is difficult to etch the fuse directly on the heating film, thereby providing a fuse module and a heating component including the same.

[0005] In order to solve the above technical problems, the utility model provides a safety module, including:

[0006] A substrate, on which at least one fuse circuit is disposed;

[0007] At least one first connecting member, disposed on the substrate, the first connecting member having a first input end and a first output end, the first input end being connected to the first end of the fuse circuit, and the first output end being suitable for connecting to a heating element;

[0008] The second connecting member is arranged on the substrate, and has a second input terminal and at least one second output terminal, wherein the second output terminal is connected to the second terminal of the fuse circuit, and the second input terminal is suitable for being connected to a power source.

[0009] Optionally, at least one first jack and at least one second jack are provided on the substrate, the first end of the fuse circuit is connected to the first jack, and the second end of the fuse circuit is connected to the second jack;

[0010] The first input end is plugged into the first jack, and the second output end is plugged into the second jack.

[0011] Optionally, the second connecting member includes:

[0012] The second input end is arranged on the body, and a plurality of the second output ends are arranged on the periphery of the body and extend outward.

[0013] Optionally, a via hole is provided on the substrate, the main body is a circular structure, and the via hole is arranged opposite to the main body.

[0014] Optionally, a plurality of the first connecting members are evenly distributed on the substrate along a circumferential direction of the via hole.

[0015] Optionally, a threaded hole is provided on the main body, and an inner side surface of the threaded hole is the second input end.

[0016] Optionally, both the first connecting member and the second connecting member are connected to the substrate by welding.

[0017] Optionally, the fuse circuit, the first connector and the second output end are connected in a one-to-one correspondence.

[0018] The utility model also provides a heating component, comprising:

[0019] at least one heating element, the heating element having a connection end;

[0020] In any of the above-mentioned insurance modules, the connection end is connected to the first output end.

[0021] Optionally, the connection end and the first output end are connected in a plug-in detachable manner.

[0022] The technical solution of the utility model has the following advantages:

[0023] The insurance module provided by the utility model comprises a substrate, at least one first connecting member and a second connecting member arranged on the substrate, at least one fuse circuit is arranged on the substrate, the first connecting member has a first input end and a first output end, the first input end is connected to the first end of the fuse circuit, the first output end is suitable for connecting to a heating element, the second connecting member has a second input end and at least one second output end, the second output end is connected to the second end of the fuse circuit, and the second input end is suitable for connecting to a power source.

[0024] By integrating a fuse circuit, a first connecting piece and a second connecting piece on the substrate of the fuse module, the heating element is connected to the power supply through the fuse module. By setting the fuse circuit on the fuse module, the safety of the heating component is improved, which is of great significance to reducing the safety risk of the battery pack; and multiple fuse circuits can be set on the fuse module, which can protect multiple heating elements at the same time, reducing the use of components supporting the heating element, and the structure is simple and compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a structural schematic diagram of an implementation of the insurance module provided in Example 1 of the utility model;

[0027] Figure 2 for Figure 1 Schematic diagram of the explosion structure.

[0028] Description of reference numerals:

[0029] 1. Baseboard; 2. Fuse circuit; 3. First connector; 4. First input terminal; 5. First output terminal; 6. First terminal; 7. Second connector; 8. Second input terminal; 9. Second output terminal; 10. Second terminal; 11. First jack; 12. Second jack; 13. Via hole; 14. Main body. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] Example 1

[0035] The fuse module provided in this embodiment is used to be arranged in a heating assembly. The heating element in the heating assembly is connected to a power source through the fuse module, and the fuse circuit thereon protects the heating structure.

[0036] like Figure 1 and Figure 2 As shown, a specific implementation of the insurance module provided in this embodiment includes a substrate 1, a second connecting member 7 and at least one first connecting member 3, and at least one fuse circuit 2 is arranged on the substrate 1; the first connecting member 3 is arranged on the substrate 1, and the first connecting member 3 has a first input terminal 4 and a first output terminal 5, the first input terminal 4 is connected to the first terminal 6 of the fuse circuit 2, and the first output terminal 5 is suitable for connecting to a heating element; the second connecting member 7 is arranged on the substrate 1, and the second connecting member 7 has a second input terminal 8 and at least one second output terminal 9, the second output terminal 9 is connected to the second terminal 10 of the fuse circuit 2, and the second input terminal 8 is suitable for connecting to a power supply.

[0037] By integrating a fuse circuit 2, a first connector 3 and a second connector 7 on the PCB board, the heating element is connected to the power supply through the fuse module. The setting of the fuse circuit 2 on the fuse module improves the safety of the heating component, which is of great significance for reducing the safety risk of the battery pack; and multiple fuse circuits 2 can be set on the fuse module, which can protect multiple heating elements at the same time, reducing the use of components supporting the heating element, and the structure is simple and compact.

[0038] Among them, the insurance module may include part or all of a PCB board, where the PCB board is the abbreviation of a printed circuit board (Printed Circuit Board); the heating element may be a PTC heating film, where PTC (Positive Temperature Coefficient) is a positive temperature coefficient thermistor material, which has the characteristic that the resistivity increases with increasing temperature.

[0039] Specifically, the fuse circuit 2 can be disposed on the substrate 1 by etching or thermal transfer.

[0040] Specifically, the first connecting member 3 and the second connecting member 7 are both terminal structures, and the first output terminal 5 and the second input terminal 8 are pin structures, which are used to connect the heating element and the power supply respectively.

[0041] like Figure 2 As shown, the fuse module provided in this embodiment has at least one first jack 11 and at least one second jack 12 provided on the substrate 1, the first end 6 of the fuse circuit 2 is connected to the first jack 11, and the second end 10 of the fuse circuit 2 is connected to the second jack 12; the first input end 4 is inserted into the first jack 11, and the second output end 9 is inserted into the second jack 12.

[0042] Specifically, since the first end 6 of the fuse circuit 2 is connected to the first socket 11, when the first input end 4 is inserted into the first socket 11, the first input end 4 contacts the first end 6, completing the connection between the first input end 4 and the fuse circuit 2; the second end 10 of the fuse circuit 2 is connected to the second socket 12, when the second output end 9 is inserted into the second socket 12, the second output end 9 contacts the second end 10, completing the connection between the second output end 9 and the fuse circuit 2.

[0043] It should be noted that the first end 6 of the fuse circuit 2 is connected to the first socket 11, which means that the first end 6 is exposed on the side wall of the first socket 11 so that it can contact the first input terminal 4; the second end 10 of the fuse circuit 2 is connected to the second socket 12, which means that the second end 10 is exposed on the side wall of the second socket 12 so that it can contact the second output terminal 9.

[0044] The first plug hole 11 and the second plug hole 12 are arranged on the substrate 1 , which is beneficial to the quick and accurate installation of the first connector 3 and the second connector 7 , and can be accurately connected with the fuse circuit 2 .

[0045] In addition, as an alternative implementation, the first jack 11 and the second jack 12 can also be replaced with corresponding pads, and the connection of the two connectors can be positioned and connected by setting the pads. Specifically, pads are set at both ends of the fuse circuit 2, and the first input terminal 4 and the second output terminal 9 are respectively welded and connected to the pads at both ends, so as to complete the connection between the first connector 3 and the second connector 7 and the fuse circuit 2.

[0046] like Figure 2 As shown, in the insurance module provided in this embodiment, the second connecting member 7 includes: a body 14, the second input end 8 is arranged on the body 14, and a plurality of second output ends 9 are arranged around the body 14 and extend outward.

[0047] like Figure 2 As shown, in the insurance module provided in this embodiment, the substrate 1 is provided with a via 13, the body 14 is a circular structure, and the via 13 is arranged opposite to the body 14. The arrangement of the via 13 can avoid the connection between the second input terminal 8 and the power supply, and can also establish a circumferential reference for the arrangement of other components. In addition, as an alternative implementation, the first connector 3 is not provided with a via 13.

[0048] It should be noted that there is no limitation on the outer diameter of the main body 14, and its outer diameter can be greater than, equal to, or less than the diameter of the via 13. Preferably, the outer diameter of the main body 14 is equal to the diameter of the via 13, so that the main body 14 can be directly connected to the substrate 1, the structure is stable, and waste caused by excessive size can be avoided.

[0049] In addition, as an alternative implementation, the main body 14 may also be a square structure.

[0050] like Figure 2 As shown, in the insurance module provided in this embodiment, a plurality of the first connecting members 3 are evenly distributed on the substrate 1 along the circumferential direction of the through hole 13, so that the structure is more compact and space-saving.

[0051] In addition, as an alternative embodiment, the plurality of first connecting members 3 may be arranged on the substrate 1 in other forms, for example, they may be arranged on the same side, or they may be arranged at positions with shorter connection distances to the heating element.

[0052] like Figure 2 As shown, in the insurance module provided in this embodiment, a threaded hole is provided on the body 14, and the inner side of the threaded hole is the second input end 8. The threaded hole is connected to the power supply through a bolt, and the connection is achieved through the inner side of the threaded hole. The threaded connection is convenient and fast to install, and the structure is simple.

[0053] In addition, as an alternative implementation, the threaded hole may not be provided, and a wire may be led out from the body 14 as the second input terminal 8, and connected to the power supply through the led-out wire.

[0054] In the insurance module provided in this embodiment, the first connecting member 3 and the second connecting member 7 are both connected to the base plate 1 by welding.

[0055] Specifically, the first input end 4 on the first connecting member 3 is welded to the first jack 11 , and the second output end 9 on the second connecting member 7 is welded to the second jack.

[0056] like Figure 1 As shown, in the insurance module provided in this embodiment, the fuse circuit 2, the first connecting member 3 and the second output end 9 are connected one by one.

[0057] Specifically, according to the number of heating elements that need to be protected, each heating element corresponds to a combination of a fuse circuit 2, a first connecting piece 3 and a second output terminal 9. The number of assemblies is the same as the number of heating elements to avoid waste of quantity. Setting more assemblies on the fuse module also tends to take up space.

[0058] In a specific implementation of the fuse module, the substrate 1 is a rectangular structure, a via hole 13 is provided in the middle thereof, and four fuse circuits 2 are evenly distributed along the circumference of the via hole 13 on the substrate 1 .

[0059] The substrate 1 includes but is not limited to the rectangular structure mentioned above, and the second connecting member 7 also includes but is not limited to the circular structure mentioned above, and may also be a square structure, etc.

[0060] Example 2

[0061] A specific implementation of the heating assembly provided in this embodiment includes the insurance module described in Example 1 and at least one heating element, wherein the heating element has a connection end; the connection end is connected to the first output end 5. The insurance module performs failure protection on the heating element, thereby reducing the safety risk of the battery pack. Specifically, the heating element is a heating film.

[0062] The connection end of the heating element provided in this embodiment and the first output end 5 are connected in a plug-in detachable manner, which is convenient for disassembly and installation and has a simple structure. Specifically, the connection end is a sheet structure, and the first output end 5 is a slot structure.

[0063] In addition, as an alternative implementation, the connection end and the first output end 5 may also be connected by welding.

[0064] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the present utility model.

Claims

1. A safety module, characterized in that: include: A substrate (1), wherein at least one fuse circuit (2) is arranged on the substrate (1); at least one first connecting member (3) disposed on the substrate (1), the first connecting member (3) having a first input end (4) and a first output end (5), the first input end (4) being connected to the first end (6) of the fuse circuit (2), and the first output end (5) being suitable for being connected to a heating element; A second connecting member (7) is arranged on the substrate (1), the second connecting member (7) having a second input terminal (8) and at least one second output terminal (9), the second output terminal (9) being connected to the second terminal (10) of the fuse circuit (2), and the second input terminal (8) being suitable for being connected to a power source.

2. The insurance module according to claim 1, characterized in that: The substrate (1) is provided with at least one first plug hole (11) and at least one second plug hole (12); the first end (6) of the fuse circuit (2) is connected to the first plug hole (11), and the second end (10) of the fuse circuit (2) is connected to the second plug hole (12); The first input end (4) is plugged into the first plug hole (11), and the second output end (9) is plugged into the second plug hole (12).

3. The insurance module according to claim 1, characterized in that: The second connecting member (7) comprises: A body (14), the second input end (8) is arranged on the body (14), and a plurality of the second output ends (9) are arranged on the periphery of the body (14) and extend outward.

4. The safety module according to claim 3, characterized in that: The substrate (1) is provided with a via hole (13), the body (14) is a circular structure, and the via hole (13) and the body (14) are arranged opposite to each other.

5. The safety module according to claim 4, characterized in that: A plurality of the first connecting members (3) are evenly distributed on the substrate (1) along the circumferential direction of the via hole (13).

6. The insurance module according to claim 3, characterized in that: The body (14) is provided with a threaded hole, and the inner side surface of the threaded hole is the second input end (8).

7. The safety module according to claim 1, characterized in that: The first connecting member (3) and the second connecting member (7) are both connected to the base plate (1) by welding.

8. The safety module according to any one of claims 1 to 7, characterized in that: The fuse circuit (2), the first connecting member (3) and the second output end (9) are connected in a one-to-one correspondence.

9. A heating component, characterized in that: include: at least one heating element, the heating element having a connection end; The fuse module according to any one of claims 1 to 8, wherein the connection end is connected to the first output end (5).

10. The heating assembly according to claim 9, characterized in that The connection end and the first output end (5) are connected in a plug-in detachable manner.

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