An overload-activated thermal battery pack comprising an insulating lightweight structure and an assembly method thereof

Abstract

The present invention belongs to the technical field of thermal batteries, and specifically relates to an overload-activated thermal battery pack comprising an insulating light structure, the insulating light structure and a plurality of unit thermal batteries, wherein the density of the insulating light structure is not greater than 1.8g / cm 3 The insulating lightweight structure is provided with a plurality of hollow positioning grooves, which partially surround the circumference of the unit thermal battery. The unit thermal battery is glued and fixed to the positioning grooves, and the axial portion of the unit thermal battery is highly exposed to the insulating lightweight structure. The depth of the positioning groove is 1 / 2 to 3 / 4 of the height of the unit thermal battery. The minimum thickness between the edge of the positioning groove and the outer edge of the insulating lightweight structure is 1mm to 5mm. The plurality of positioning grooves and the unit thermal batteries are evenly arranged on the insulating lightweight structure. The present invention solves the problems of conventional overload-activated thermal batteries, such as heavy structure, heat absorption, and insulation risks. In addition, the present invention also provides an assembly method for an overload-activated thermal battery pack including an insulating lightweight structure.

Description

Technical Field

[0001] The present invention belongs to the technical field of thermal batteries, and in particular relates to an overload-activated thermal battery pack comprising an insulating lightweight structure and an assembly method thereof. Background Art

[0002] Thermal batteries offer fast activation, high power, and strong output capabilities. Gun-launching platforms require thermal battery packs to maintain power output within a short period of time after an overload launch. The battery pack is equipped with an overload activation device, which uses the launch overload to trigger the primer to ignite, or uses the launch overload to propel a magnetic block within the device to generate an induced current that triggers a sensitive electric ignition head, thereby simultaneously activating the thermal battery. This type of thermal battery pack is commonly referred to as an overload-activated thermal battery pack. Due to the requirements for lightweight and intelligent projectiles, overload-activated thermal battery packs must possess both high overload resistance and lightweight characteristics.

[0003] However, the current problems with the overload-resistant combined thermal battery structure are as follows: (1) The structure is made of metal materials with high density. Based on the high overload launch characteristics of the gun launch platform, the battery structure needs to be designed to be overload-resistant, that is, locally thickened and strengthened. The structural weight accounts for a large proportion, which is not conducive to the overall lightweight design of the battery. Moreover, within the specified weight and size range, excessive weight and excessive size of the structure will affect the working time and power output capacity of the battery, seriously limiting the specific energy of the battery, and thus affecting the long-term flight and attitude adjustment of the missile; (2) The metal structure has strong thermal conductivity, and the heat absorption of the structure will cause the heat generated by the thermal battery to dissipate faster when it is working. Since the basis of the work of the thermal battery is heat, the heat absorption of the structure will cause the capacity of the thermal battery to decrease, thereby affecting the working time; (3) The insulation measures between the structure and the unit thermal battery have the risk of failure under high overload conditions, and the induced potential generated by the high-voltage battery may even cause damage to the missile control system.

[0004] In summary, the traditional overload thermal battery pack must be improved in design to meet the requirements of high overload series weapon systems for thermal battery packs to be simple, lightweight, and have high specific energy. Summary of the Invention

[0005] One of the purposes of the present invention is to address the deficiencies of the prior art and provide an overload-activated thermal battery pack comprising an insulated lightweight structure, which can be lightweight, heat-insulated and electrically insulating while ensuring overload resistance and reliability, and ensure the output specific energy of the battery, thereby solving the problems of heavy structure, heat absorption and insulation risks of conventional overload-activated thermal batteries.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An overload-activated thermal battery pack comprising an insulated lightweight structure, comprising:

[0008] Insulating lightweight structure, the density of the insulating lightweight structure is not greater than 1.8g / cm 3 The insulating lightweight structure is provided with a plurality of positioning grooves in a hollow structure;

[0009] a plurality of unit thermal batteries, wherein the unit thermal batteries are glued and fixed to the positioning grooves, and axial portions of the unit thermal batteries are highly exposed from the insulating lightweight structure;

[0010] The positioning groove partially surrounds the circumference of the unit thermal battery, and the depth of the positioning groove is 1 / 2 to 3 / 4 of the height of the unit thermal battery;

[0011] The minimum thickness of the outer edge of the insulating lightweight structure and the edge of each positioning groove is 1mm to 5mm;

[0012] A plurality of the positioning grooves and the unit thermal batteries are evenly arranged on the insulating lightweight structure.

[0013] Preferably, the minimum distance between the outer edge of the insulating lightweight structure and the edge of each unit thermal battery is 1 mm to 3 mm, which can maximize the capacity of the unit thermal battery and make the entire battery pack structure more compact.

[0014] Preferably, the insulating lightweight structure is made of non-metallic material, which may be phenolic cotton cloth laminate or epoxy glass fiber laminate.

[0015] Preferably, each of the unit thermal batteries corresponds to each of the positioning grooves one by one, and the depth of the positioning grooves is 2 / 3 to 3 / 4 of the height of the unit thermal battery, which can ensure mechanical strength and reduce structural weight.

[0016] Preferably, the potting glue of the unit thermal battery and the insulating lightweight structure is epoxy resin glue or silicone rubber.

[0017] Preferably, the insulating light structure is provided with a wire passing hole and a mounting hole, and the wire passing hole and the mounting hole are arranged close to the outer edge of the insulating light structure.

[0018] Preferably, the insulating lightweight structure is provided with a positioning hole and a plurality of wiring grooves, the positioning hole is used to install the overload activation device, the wiring groove is connected to the positioning groove, and the depth and width of the wiring groove can be adjusted according to the cable situation.

[0019] Preferably, the positioning hole is arranged in the center of the insulating lightweight structure.

[0020] Preferably, the overload activation device is sealed in the positioning hole by injecting glue.

[0021] Preferably, the density of the insulating lightweight structure is 1.3 g / cm3 ~1.5g / cm 3 , the overload-activated thermal battery pack has unit thermal batteries with diameters of 42 mm and 45 mm.

[0022] A second object of the present invention is to provide a method for assembling an overload-activated thermal battery pack comprising an insulating lightweight structure, comprising the following steps:

[0023] S1. Assemble each unit thermal battery one by one into each evenly distributed positioning groove of the insulating lightweight structure;

[0024] S2. Using adhesive to seal each of the unit thermal batteries in each of the positioning grooves;

[0025] S3. Arrange output terminals and activation terminals on the top surface of each unit thermal battery, connect the activation terminals of each unit thermal battery with a wire, connect the output terminals of each unit thermal battery with a wire, and connect the required unit thermal batteries in series and / or in parallel.

[0026] Preferably, S3 further includes: after the unit thermal batteries are assembled, gluing the top surfaces of the unit thermal batteries and the wires to ensure that the unit thermal batteries and the wires are integrated.

[0027] The beneficial effects of the present invention are as follows: 1) The present invention adopts an insulating light structure to replace the heavy metal structure in the background technology, and the semi-enclosed battery mode of the structure further reduces the weight of the overall structure, so that the weight of the entire structure can be reduced by more than 44% compared with the general design; 2) The present invention adopts an insulating light structure, which not only enables each unit thermal battery to output independently, but also prevents the thermal battery capacity from decreasing due to heat absorption of the structure, solves the heat loss of the thermal battery, and improves the capacity of the thermal battery; 3) The present invention adopts an insulating light structure, and the unit batteries and the unit batteries and the artillery firing equipment are connected by an insulating structure , the battery has good high-voltage insulation; 4) the volume and weight ratio of the thermal battery pack structure prepared by the present invention is small, which effectively improves the specific energy of the thermal battery pack to meet the range extension requirements of the equipment; 5) the thermal battery pack prepared by the present invention is resistant to overload and can withstand an overload impact of 2000g to 10000g, and when the thermal battery pack is subjected to overload mechanics, a certain thermal battery can be activated, and the thermal battery can be used to activate the remaining thermal batteries, solving the power consumption problem of the artillery equipment; 6) the thermal battery pack prepared by the present invention can output several different electrical properties to meet the power consumption needs of multiple types of users' equipment, and is concentrated in one structure for easy loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the overload-activated thermal battery pack of the present invention.

[0029] Figure 2 This is a front view of the thermal battery pack structure of the present invention.

[0030] Figure 3 It is a left view of the thermal battery pack structure of the present invention.

[0031] Figure 4 This is the A direction of the left view of the thermal battery pack structure of the present invention. DETAILED DESCRIPTION

[0032] If certain words are used in the specification and claims to refer to specific components, those skilled in the art should understand that manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in name as a way to distinguish components, but rather use differences in the functions of the components as the criteria for distinction. For example, the term "including" mentioned throughout the specification and claims is an open-ended term and should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0033] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0034] The following is combined with Figures 1 to 4 The present invention is further described in detail with reference to the accompanying drawings and specific examples, but is not intended to limit the present invention.

[0035] Implementation Method 1

[0036] An overload activated thermal battery comprising an insulated lightweight structure, such as Figures 1 to 4 Shown, including:

[0037] Insulation light structure 2, the density of insulation light structure 2 is not more than 1.8g / cm 3 The insulating light structure 2 is provided with a plurality of positioning grooves 4 having a hollow structure;

[0038] A plurality of unit thermal batteries 3, wherein the unit thermal batteries 3 are glued and fixed in the positioning grooves 4 and the axial portions of the unit thermal batteries 3 are highly exposed to the insulating lightweight structure 2;

[0039] The positioning groove 4 partially surrounds the periphery of the unit thermal battery 3, and the depth of the positioning groove 4 is 1 / 2 to 3 / 4 of the height of the unit thermal battery 3;

[0040] The minimum thickness between the outer edge of the insulating lightweight structure 2 and the edge of each positioning groove 4 is 1 mm to 5 mm;

[0041] A plurality of positioning grooves 4 and unit thermal batteries 3 are evenly arranged on the insulating lightweight structure 2 .

[0042] Preferably, the minimum distance between the outer edge of the insulating lightweight structure 2 and the edge of each unit thermal battery 3 is 1 mm to 3 mm, and the top of the insulating lightweight structure 2 is provided with the cable 1 .

[0043] The density of the insulating lightweight structure 2 is 1.3 g / cm 3 ~1.5g / cm 3 The overload-activated thermal battery pack has unit thermal batteries 3 with diameters of 42 mm and 45 mm. In the battery pack, each unit thermal battery 3 can output electrical performance independently, or several of them can be connected in series or parallel externally to output electrical performance, and can also be designed according to different electrical performance requirements.

[0044] Preferably, each unit thermal battery 3 corresponds to each positioning groove 4 one by one, and the depth of the positioning groove 4 is 2 / 3 to 3 / 4 of the height of the unit thermal battery 3. Each unit thermal battery 3 is assembled into the positioning groove 4 and encapsulated with epoxy resin glue, so that the unit thermal battery 3 and the insulating lightweight structure 2 become one, so this structure can break the convention. At the same time, the tail of the unit thermal battery 3 is exposed outside the insulating lightweight structure 2, which not only reduces the weight, but also allows the unit thermal battery 3 to be used as a positioning column of the user and positioned in the groove designed by the user, thereby ensuring that the entire combined thermal battery structure will not rotate when used by the user, thereby meeting the overload resistance requirements.

[0045] Preferably, the insulating light structure 2 is made of non-metallic material. The non-metallic material selected in this embodiment is phenolic cotton cloth laminate, which has a density of 1.49g / cm 3 , and the minimum density of commonly used metal structures is 2.7g / cm 3 Clearly, simply changing the structural material has reduced its weight by nearly half. This thermal battery pack, by combining several unit thermal batteries 3, achieves modular output with diverse electrical properties, thereby simultaneously meeting the power needs of control and power systems. Furthermore, with the current trend toward miniaturization, lightweighting, and intelligentization of weaponry, this lightweight combined thermal battery structure is particularly attractive to users.

[0046] Preferably, the insulating lightweight structure 2 is provided with a wire passing hole 5 and a mounting hole 6, and the wire passing hole 5 and the mounting hole 6 are arranged close to the outer edge of the insulating lightweight structure 2, wherein the mounting hole 6 is the mounting hole of the combined thermal battery structure, which can ensure that the entire thermal battery group has both radial positioning and axial compression force when in use, so as to achieve overload resistance.

[0047] Preferably, the insulating lightweight structure 2 is provided with a positioning hole 7 and a plurality of wiring grooves 8, the positioning hole 7 is used to install the overload activation device, and the wiring groove 8 is connected to the positioning groove 4, wherein the positioning hole 7 is arranged in the center of the insulating lightweight structure 2, and the overload activation device is sealed in the positioning hole 7 by injecting glue.

[0048] Specifically, the overload activation device is sealed with epoxy resin in the positioning hole 7 to ensure safe and reliable operation when the entire battery pack is overloaded. When the overload activation device is connected to one of the unit thermal batteries 3 and the thermal battery pack is overloaded, one unit thermal battery 3 can be activated. The electrical performance of the activated unit thermal battery 3 can then be used to activate the remaining unit thermal batteries 3. This solves the problem of users being unable to provide power to activate the thermal batteries, making the thermal battery pack self-sufficient and reliable.

[0049] In summary, the present invention completely solves the problem that users cannot supply power to activate thermal batteries, breaks through the overload resistance of lightweight non-metallic insulation structures, and improves the specific energy of the battery pack.

[0050] Implementation Method 2

[0051] A method for assembling an overload-activated thermal battery pack comprising an insulating lightweight structure comprises the following steps:

[0052] S1. Assemble each unit thermal battery 3 one by one into each evenly distributed positioning groove 4 of the insulating lightweight structure 2;

[0053] S2. Use glue to pot each unit thermal battery 3 in each positioning groove 4 one by one. In this way, the unit thermal battery 3 and the insulating light structure 2 are potted into one. The unit thermal battery is both relatively independent in the structure and seamlessly integrated with the structure. It will not move or rotate, making full preparation for overload resistance.

[0054] S3. Set output terminals and activation terminals on the top surface of each unit thermal battery 3, connect the activation terminals of each unit thermal battery 3 with a wire, connect the output terminals of each unit thermal battery 3 with a wire, and connect the required unit thermal batteries 3 in series and / or in parallel.

[0055] The wires can be connected to the system through the wiring trough 8 on the structure into cables.

[0056] Preferably, step S3 further includes: in order to improve the overload resistance of the combined thermal battery pack, after the unit thermal batteries 3 are assembled and the wires are connected in series and parallel to achieve electrical output, the top surface of the unit thermal batteries 3 and the wires are sealed with glue to ensure that each unit thermal battery 3 and the wires are integrated, once again fully prepared for overload resistance. In addition, the thermal battery pack prepared using the above overload resistance preparation method can withstand overloads of 2000g to 10000g.

[0057] Obviously, the parts involved in the preparation method are simple to manufacture, the unit thermal battery is easy to assemble, and the combined thermal battery structure is low in cost, and can be widely used in the combined thermal battery structure.

[0058] Based on the disclosure and teachings of the above description, those skilled in the art will be able to make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the above specific embodiments. Any obvious improvements, substitutions, or modifications made by those skilled in the art based on the present invention fall within the scope of protection of the present invention. In addition, although certain specific terms are used in this description, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. An overload activated thermal battery pack comprising an insulating lightweight structure, characterized in that include: The insulating light structure (2) is made of a material with a density of 1.49 g / cm 3 The insulating light structure (2) is provided with a plurality of positioning grooves (4) in a hollow structure; a plurality of unit thermal batteries (3), wherein the unit thermal batteries (3) are glued and fixed to the positioning grooves (4), and the axial portions of the unit thermal batteries (3) are highly exposed to the insulating lightweight structure (2); The top surface of the unit thermal battery (3) is provided with an output terminal and an activation terminal, the activation terminals of each unit thermal battery (3) are connected by a wire, and the output terminals of each unit thermal battery (3) are connected by a wire, and the required unit thermal batteries (3) are connected in series and / or in parallel; The positioning groove (4) partially surrounds the circumference of the unit thermal battery (3), and the depth of the positioning groove (4) is 1 / 2 to 3 / 4 of the height of the unit thermal battery (3); The minimum thickness of the outer edge of the insulating lightweight structure (2) and the edge of each positioning groove (4) is 1 mm to 5 mm; The plurality of positioning grooves (4) and the unit thermal batteries (3) are evenly arranged on the insulating lightweight structure (2).

2. The overload-activated thermal battery pack comprising an insulating lightweight structure according to claim 1, wherein: The minimum distance between the outer edge of the insulating lightweight structure (2) and the edge of each unit thermal battery (3) is 1 mm to 3 mm.

3. The overload-activated thermal battery pack comprising an insulating lightweight structure according to claim 1 or 2, characterized in that: Each unit thermal battery (3) corresponds one-to-one to each positioning groove (4), and the depth of the positioning groove (4) is 2 / 3 to 3 / 4 of the height of the unit thermal battery (3).

4. The overload-activated thermal battery pack comprising an insulating lightweight structure according to claim 1 or 2, characterized in that: The insulating light structure (2) is provided with a wire-passing hole (5) and a mounting hole (6), and the wire-passing hole (5) and the mounting hole (6) are arranged close to the outer edge of the insulating light structure (2).

5. The overload-activated thermal battery pack comprising an insulating lightweight structure according to claim 1 or 2, characterized in that: The insulating lightweight structure (2) is provided with a positioning hole (7) and a plurality of wiring grooves (8); the positioning hole (7) is used for installing an overload activation device; and the wiring grooves (8) are communicated with the positioning grooves (4).

6. The overload-activated thermal battery pack comprising an insulating lightweight structure according to claim 5, wherein: The positioning hole (7) is arranged at the center of the insulating lightweight structure (2).

7. The overload-activated thermal battery pack comprising an insulating lightweight structure according to claim 5, wherein: The overload activation device is sealed in the positioning hole (7) by injecting glue.

8. The overload-activated thermal battery pack comprising an insulating lightweight structure according to claim 1 or 2, characterized in that: The overload activated thermal battery pack has unit thermal batteries (3) with diameters of 42 mm and 45 mm.

9. A method for assembling an overload-activated thermal battery pack comprising an insulating lightweight structure, applied to the overload-activated thermal battery pack according to any one of claims 1 to 8, characterized in that: The steps include: S1, assembling each unit thermal battery (3) one by one into each evenly distributed positioning groove (4) of the insulating lightweight structure (2); S2, using adhesive to seal each of the unit thermal batteries (3) in each of the positioning grooves (4); S3. Output terminals and activation terminals are provided on the top surface of each unit thermal battery (3), the activation terminals of each unit thermal battery (3) are connected with a wire, and the output terminals of each unit thermal battery (3) are connected with a wire, so as to connect the required unit thermal batteries (3) in series and / or in parallel.

10. The method for assembling an overload-activated thermal battery pack comprising an insulating lightweight structure according to claim 9, wherein said S3 further comprises: After the unit thermal batteries (3) are assembled, the top surfaces of the unit thermal batteries (3) and the wires are sealed with glue to ensure that each unit thermal battery (3) and the wires are integrated.

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