Quick-activation thermal battery stack

Abstract

The utility model provides a quick activation thermal battery stack, which comprises a single body I, a single body II, an adapter plate, a fastening belt and fixing plates, the single body I and the single body II are respectively positioned on two sides of the adapter plate, the separated surfaces of the single body I and the single body II are respectively provided with the fixing plates, and the fixing plates are connected with the adapter plate through the fastening belt; the radial size of the first single body is smaller than that of the second single body, and / or the axial size of the first single body is smaller than that of the second single body. According to the utility model, the single body I which is smaller in size and faster in activation is integrated with the single body II which is larger in size and larger in capacity, so that the thermal battery electric pile can simultaneously meet the power utilization requirements of quick activation and large capacity (under the condition of equivalent capacity, the activation time of the thermal battery electric pile can be shortened to be within 50ms); and heat dissipation during discharging of the single body I can be fully utilized, so that ignition sheets and the like consumed for activating the thermal battery with a relatively large volume are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to thermal battery technical field especially is related to a fast activation thermal battery electric pile. BACKGROUND

[0002] Thermal battery is widely used due to the characteristics of wide temperature range, good high-power discharge performance and no maintenance, which belongs to the molten salt reserve battery. The internal electrolyte is non-conductive solid during storage. The internal pyrotechnics needs to be activated during use. The ignition of the pyrotechnics ignites the internal heating material. The heat energy released by the heating material is transmitted to the intermediate electrolyte layer through the positive and negative electrodes. The electrolyte melts for a period of time before it has the ability to supply power. This period of time is the activation time. The activation time of thermal battery is generally long, usually 0.3s-0.8s. The length of the activation time directly affects the effect of power supply. Especially in some special occasions, the requirement for activation time is very strict, and the activation time of thermal battery needs to be controlled within 100ms. Therefore, it is particularly important to develop thermal battery with fast activation capability.

[0003] The activation time of thermal battery is closely related to the thickness and size of the single battery. The smaller and thinner the single battery is, the faster the heat transfer speed in the single battery will be, and the faster the battery activation will be. The thickness of the single battery is limited by the forming ability of the powder dry pressing method, which has reached the process limit. Therefore, the activation speed can only be improved by reducing the size of the single battery. However, the fast activation thermal battery still needs a certain capacity output, which cannot be met by the thin small single battery design. SUMMARY

[0004] The purpose of the utility model is to provide a thermal battery electric pile to solve the problems in the background art.

[0005] The technical scheme of the utility model comprises: a fast activation thermal battery electric pile, which comprises a single battery one, a single battery two, a transfer plate, a fastening belt and a fixed plate. The single battery one and the single battery two are located on the two sides of the transfer plate respectively, and the two sides are respectively provided with the fixed plate. The fixed plate is connected with the transfer plate through the fastening belt. Wherein: the radial dimension of the single battery one is smaller than the radial dimension of the single battery two, and / or the axial dimension of the single battery one is smaller than the axial dimension of the single battery two.

[0006] Further, the fastening belt comprises a fastening belt one and a fastening belt two. The fastening belt one is uniformly distributed with three or more than three on the circumference of the single battery one. The fastening belt two is uniformly distributed with three or more than three on the circumference of the single battery two. The width of the fastening belt two is greater than the width of the fastening belt one.

[0007] Further, the adapter plate is provided with a mounting groove one recessed along the outer edge thereof towards the shaft center, and a side wall of the mounting groove one close to the shaft center of the adapter plate abuts against the fastening band one.

[0008] Further, the adapter plate is provided with a mounting block protruded along the outer edge thereof away from the shaft center, and the mounting block is provided with a mounting hole, and one end of the fastening band two is arranged in the mounting hole.

[0009] Further, the fastening band two comprises a band body, a limiting part one and a limiting part two connected in sequence, the band body is arranged in the mounting hole, the limiting part one and the limiting part two abut against the mounting block respectively, the limiting part one is located on the same side of the mounting block as the single body one, and the limiting part two is located on the side of the mounting block away from the shaft center of the adapter plate.

[0010] Further, the fixed plate comprises a fixed plate one and a fixed plate two, the fixed plate one abuts against the single body one, the fixed plate two abuts against the single body one, and the radial dimension of the fixed plate one is smaller than that of the fixed plate two.

[0011] Further, the fixed plate one is provided with a mounting groove two, the mounting groove two and the single body one are located on the two sides of the fixed plate one respectively, and the mounting groove two is recessed along the axial direction of the fixed plate one and used for mounting an activation assembly.

[0012] Further, a plurality of groups of the single body one are arranged between the adapter plate and the fixed plate one, and a plurality of groups of the single body two are arranged between the adapter plate and the fixed plate two.

[0013] The utility model discloses have the beneficial effect in that: through the integration of the single body one of smaller size and faster activation and the single body two of larger size and larger capacity, not only can the thermal battery stack meet the fast activation and large capacity power demand (under the condition of equivalent capacity, the activation time of the thermal battery stack of the utility model can be shortened to 50ms or less), but also can make full use of the heat dissipation of the single body one during discharging, and reduce the ignition sheet and the like consumed for activating the thermal battery of larger volume. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the overall structure diagram of the utility model embodiment;

[0015] Fig. 2 It is the structure diagram of the adapter plate in the utility model embodiment.

[0016] In the drawing:

[0017] 1, fixed plate one;

[0018] 2, single body one;

[0019] 3, fastening band one;

[0020] 4, adapter plate;

[0021] 5, monomer two;

[0022] 6, fastening band two; 6.1, band body; 6.2, limiting part one; 6.3, limiting part two;

[0023] 7, fixed plate two;

[0024] 8, mounting groove one;

[0025] 9, mounting block;

[0026] 10, mounting hole;

[0027] 11, mounting groove two. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described clearly and completely below in combination with the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0030] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two elements inside the communication.For ordinary skilled in the art, the above-mentioned terms can be understood by the specific meaning in the utility model through specific circumstances.

[0031] Reference attached Figs. 1-2 The embodiment provides a kind of quick activation thermal battery stack, it includes monomer one 2, monomer two 5, adapter plate 4, fastening band and fixed plate, monomer one 2 and monomer two 5 are located at the two sides of adapter plate 4 respectively, the face of two is apart from each other respectively is equipped with fixed plate, and fixed plate is connected adapter plate 4 by fastening band;Wherein: the radial dimension of monomer one 2 is less than the radial dimension of monomer two 5, and / or the axial dimension of monomer one 2 is less than the axial dimension of monomer two 5.

[0032] In use, activation assembly (prior art, including ignition head, ignition sheet etc.) is configured in monomer one 2 side, and monomer one 2 of size smaller is activated quickly, and heat generated when monomer one 2 discharges is transmitted with the heat of activation assembly to monomer two 5, and then monomer two 5 is activated to discharge.Employing the above technical scheme, by integrating monomer one 2 of size smaller and activation faster with monomer two 5 of size larger and capacity larger, not only can the thermal battery stack meet the power demand of fast activation and large capacity simultaneously, but also can make full use of the heat dissipation when monomer one 2 discharges, reduce ignition sheet etc.

[0033] In the embodiment, fixed plate includes fixed plate one 1 and fixed plate two 7, fixed plate one 1 and monomer one 2 are located at the same side of adapter plate 4, fixed plate two 7 and monomer two 5 are located at the same side of adapter plate 4, fastening band includes fastening band one 3 and fastening band two 6, fastening band one 3 is used to connect fixed plate one 1 and adapter plate 4, and fastening band two 6 is used to connect fixed plate two 7 and adapter plate 4, to ensure the connection stability of monomer one 2 and monomer two 5, and then ensure the continuity and stability of activation discharge.

[0034] The three or more fastening bands one 3 are uniformly distributed in the circumferential direction of the monomer one 2, the three or more fastening bands two 6 are uniformly distributed in the circumferential direction of the monomer two 5, the width of the fastening band two 6 is greater than the width of the fastening band one 3, the fixed plate one 1 abuts the monomer one 2, and the fixed plate two 7 abuts the monomer one 2, so as to ensure the connection fastening; the radial dimension of the fixed plate one 1 is smaller than the radial dimension of the fixed plate two 7, preferably, the radial dimension of the monomer one 2 is the same as the radial dimension of the fixed plate one 1, and the radial dimension of the monomer two 5 is the same as the radial dimension of the fixed plate two 7, so as to reduce the volume of the thermal battery stack and the space occupied by the thermal battery stack in the electrical equipment as much as possible while ensuring complete packaging and protection of the monomer battery.

[0035] In the implementation, the monomer one 2 can be stacked between the adapter plate 4 and the fixed plate one 1 in several groups, and the monomer two 5 can be stacked between the adapter plate 4 and the fixed plate two 7 in several groups, so as to improve the overall capacity of the stack.

[0036] In the embodiment, the adapter plate 4 is provided with a mounting groove one 8 recessed along the outer edge thereof towards the axis, the side wall of the mounting groove one 8 close to the axis of the adapter plate 4 abuts the fastening band one 3 and is connected and fastened by anchor nails or screws, and the other end of the fastening band one 3 abuts the side edge of the fixed plate and is connected and fastened by rivets or screws. Preferably, when the mounting groove one 8 is constructed, the radial dimension of the monomer one 2 is arranged so that the fastening band one 3 is parallel to the axis of the monomer one 2 and abuts the side surface of the monomer one 2, so as to improve the assembly fastening.

[0037] In addition, the adapter plate 4 is also provided with a mounting block 9 protruding along the outer edge thereof away from the axis, the mounting block 9 is provided with a mounting hole 10, and one end of the fastening band two 6 is arranged in the mounting hole 10. Preferably, when the mounting hole 10 is constructed, the radial dimension of the monomer two 5 is arranged so that the fastening band two 6 is parallel to the axis of the monomer two 5 and abuts the side surface of the monomer two 5, so as to improve the assembly fastening.

[0038] In the embodiment, the fastening band two 6 comprises a band body 6.1, a limiting part one 6.2 and a limiting part two 6.3 connected in sequence, the band body 6.1 is arranged in the mounting hole 10, the limiting part one 6.2 and the limiting part two 6.3 abut the mounting block 9 respectively, the limiting part one 6.2 is located on the same side of the mounting block 9 as the monomer one 2, and the limiting part two 6.3 is located on the side of the mounting block 9 away from the axis of the adapter plate 4. In use, first, the bottom end of the band body 6.1 is arranged through the mounting hole 10, then the limiting part one 6.2 and the limiting part two 6.3 are clamped on the mounting block 9, and finally the bottom end of the band body 6.1 is riveted or screwed to the fixed plate two 7, so as to be convenient to assemble and disassemble and to be connected fast.

[0039] In order to facilitate the activation of the thermal battery stack or integration with other devices, the mounting groove two 11 is arranged on the fixed plate one 1, the mounting groove two 11 and the monomer one 2 are respectively located on both sides of the fixed plate one 1, the mounting groove two 11 is recessed along the axial direction of the fixed plate one 1, and is used for mounting the activation assembly (prior art, including ignition head, ignition sheet and the like).

[0040] Compared with the prior art, the beneficial effects of the utility model are that: by integrating the monomer one 2 with small size and fast activation with the monomer two 5 with large size and large capacity, not only can the thermal battery stack meet the fast activation and large capacity power demand at the same time (in the case of equivalent capacity, the activation time of the thermal battery stack of the utility model can be shortened to within 50ms), but also can fully utilize the heat dissipation of the monomer one 2 during discharging, and reduce the ignition sheet and the like consumed for activating the large volume thermal battery.

[0041] The above is the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the technical field, a number of improvements and refinements can be made without departing from the principles of the utility model, and these improvements and refinements should also be regarded as the protection scope of the utility model.

Claims

1. A fast-activation thermal battery stack, characterized in that, The assembly includes a first component, a second component, an adapter plate, a fastening band, and a fixing plate. The first component and the second component are located on opposite sides of the adapter plate, and the fixing plate is provided on their respective non-adjacent surfaces. The fixing plate is connected to the adapter plate by the fastening band. The radial dimension of the first component is smaller than that of the second component, and / or the axial dimension of the first component is smaller than that of the second component.

2. The fast-activation thermal battery stack according to claim 1, characterized in that, The fastening band includes fastening band one and fastening band two. Fastening band one has three or more evenly distributed around the circumference of the single unit one, and fastening band two has three or more evenly distributed around the circumference of the single unit two. The width of fastening band two is greater than the width of fastening band one.

3. The fast-activation thermal battery stack according to claim 2, characterized in that, The adapter plate is provided with a mounting groove recessed along its outer edge toward the axis, and the side wall of the mounting groove near the axis of the adapter plate abuts against the fastening band.

4. The fast-activation thermal battery stack according to claim 2 or 3, characterized in that, The adapter plate is provided with a mounting block that protrudes from the axis along its outer edge. The mounting block is provided with a mounting hole, and one end of the fastening band 2 passes through the mounting hole.

5. The fast-activation thermal battery stack according to claim 4, characterized in that, The second fastening band includes a band body, a first limiting part, and a second limiting part connected in sequence. The band body passes through the mounting hole. The first limiting part and the second limiting part abut against the mounting block. The first limiting part and the first unit are located on the same side of the mounting block. The second limiting part is located on the side of the mounting block away from the axis of the adapter plate.

6. The fast-activation thermal battery stack according to any one of claims 1-3 and 5, characterized in that, The fixing plate includes a fixing plate one and a fixing plate two. The fixing plate one abuts against the single unit one, and the fixing plate two abuts against the single unit one. The radial dimension of the fixing plate one is smaller than the radial dimension of the fixing plate two.

7. The fast-activation thermal battery stack according to claim 6, characterized in that, The fixing plate is provided with a second mounting groove. The second mounting groove and the first unit are located on both sides of the fixing plate. The second mounting groove is recessed along the axial direction of the fixing plate and is used to install the activation component.

8. The fast-activation thermal battery stack according to claim 7, characterized in that, The first unit is stacked in several groups between the adapter plate and the first fixing plate, and the second unit is stacked in several groups between the adapter plate and the second fixing plate.

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