Portable radio station communication lithium battery pack

Abstract

The utility model provides a portable radio station communication lithium battery pack which comprises a shell and a battery module, the battery module comprises a plurality of single batteries and fixing frames arranged at the two ends of the single batteries respectively, and each fixing frame comprises a limiting fixing plate and a fixing plate, clamping grooves matched with the single batteries are formed in the limiting fixing plate, and the number of the clamping grooves is equal to that of the single batteries, so that the single batteries are clamped in the corresponding clamping grooves when the battery pack is used; the supporting and limiting piece is fixed on one side, far away from the battery monomers, of the limiting and fixing plate and is used for limiting the nickel straps connected with the battery monomers and the battery monomers; and the two insulating plates are respectively propped against the corresponding supporting and limiting pieces. The fixing frames are arranged at the two ends of the single battery, the nickel strips and the insulating plates are sequentially arranged on the outer sides of the fixing frames, the structure is compact, the size is small, and the fixing frames are hollowed out and light in weight.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium ion batteries, in particular to a portable radio communication lithium battery pack. Background Art

[0002] Portable radios are mainly used to ensure the communication of tactical corps, also known as backpack radios, which have the characteristics of small size and light weight. Therefore, it is necessary to design a compact, light and small battery pack to meet the requirements of portable radio communication for easy carrying.

[0003] In addition, when the radio is carried, the battery may become loose or even shifted due to vibration and impact from uncertain external forces, causing abnormal power supply of the battery pack and affecting the normal use of the radio. Utility Model Content

[0004] The utility model aims to provide a portable radio communication lithium battery pack, which has a compact structure, small volume and light weight through reasonable configuration of various components, thereby meeting the requirement of portable radio for easy carrying.

[0005] To achieve the above-mentioned purpose, the utility model provides a portable radio communication lithium battery pack, comprising a shell and a battery module arranged in the shell, the battery module comprising a plurality of battery cells connected in series and two fixing frames respectively arranged at both ends of the battery cells, the fixing frames comprising: a limiting fixing plate, on which a card slot equal to the number of the battery cells and adapted to the battery cells is arranged, so that each of the battery cells is stuck in the corresponding card slot when in use; a supporting limiting member fixed on a side of the limiting fixing plate away from the battery cells, used to limit the nickel strips connected to each of the battery cells and the battery cells; and an insulating plate, two of the insulating plates are respectively abutted against the corresponding supporting limiting members; wherein a PCB board is arranged on a side of one of the insulating plates away from the nickel strip, the output terminal of the PCB is connected to a plug connected to the portable radio through an electric wire, a connecting piece is fixedly connected to a side of the nickel strip near one end of the PCB board, and the input end of the PCB board is connected to the nickel strip through the connecting piece.

[0006] Furthermore, the shell is a heat shrink tube, and the heat shrink tube is wrapped around the outside of the battery module.

[0007] Furthermore, the slot is a stepped hole formed by a through hole at the bottom of the slot, the thickness of the bottom of the slot is smaller than the height of the positive electrode connecting column of the battery cell, and the diameter of the through hole at the bottom of the slot is smaller than the diameter of the battery cell.

[0008] Furthermore, the support and limiting member includes support feet fixed on the four edges and four corners of the limiting and fixing plate and a support block fixed in the middle of the limiting and fixing plate; the plurality of spaced support feet and support blocks extend toward the direction of the card slot, and each of the support feet and support blocks overlaps with the corresponding card slot in the projection direction; wherein there are gaps adapted to the nickel strip between the support block and the limiting and fixing plate, and between the support feet and the limiting and fixing plate, so that the nickel strip is placed in the gap.

[0009] Furthermore, each of the support legs is an L-shaped structure formed by extending the edge of the limiting fixing plate in a direction away from the battery cell and bending inward at 90 degrees, and the support legs and the limiting fixing plate are an integrally formed structure.

[0010] Furthermore, a plurality of the support blocks are arranged at intervals on a side of the position limiting fixing plate away from the battery cell, and the support blocks are fixed to the position limiting fixing plate via connecting columns so that there is a gap between the support blocks and the position limiting fixing plate.

[0011] Furthermore, a surface of each supporting foot and a surface of each supporting block on one side away from the limiting fixing plate are both located in the same plane.

[0012] Compared with the prior art, the utility model has the following technical effects:

[0013] 1. The technical solution of the utility model is applied, and fixing frames are arranged at both ends of the battery monomer, and nickel strips and insulating plates are arranged on the outer side of the fixing frames in sequence. The structure is compact and the volume is small. The fixing frame is formed by opening a card slot on the limit fixing plate. The hollow design of the fixing frame can fully reduce its weight while meeting the need to fix the battery monomer, and meet the requirements of light weight and small volume of the battery required by the portable radio;

[0014] 2. The battery pack of the utility model can support and limit each battery cell by providing fixing frames at both ends of the battery cell, so as to avoid the battery shifting due to vibration and shaking caused by external uncertain factors during the process of carrying the radio, thereby affecting its working stability;

[0015] 3. The support and limiter of the utility model can not only limit the nickel strip, but also play the role of supporting and limiting the fixing plate, and can prevent external forces from directly acting on both ends of the battery monomer, effectively protecting the battery monomer and extending its service life;

[0016] 4. When the battery pack of the utility model is used, gaps are provided between the supporting feet and the supporting blocks and the limiting fixing plate. This structure can buffer the impact force and effectively resist shock. In addition, the nickel strip is placed in the gap, and the supporting feet and the supporting blocks both support the nickel strip, limiting the longitudinal displacement of the nickel strip. The cooperation between the connecting column of the supporting block and the supporting feet limits the horizontal position of the nickel strip, preventing the nickel strip from shifting as the use time increases and the number of transportations increases, causing the nickel strip and the battery cell to be desoldered, affecting its normal use, extending its service life, and ensuring the stability of the battery operation. The overall structural design is ingenious and compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute a part of this specification and are used for further understanding of the present invention, illustrate preferred embodiments of the present invention and are used to explain the principles of the present invention together with the description.

[0018] Figure 1 A schematic diagram showing the structure of the portable radio communication lithium battery pack of the utility model;

[0019] Figure 2 A schematic diagram showing the structure of a battery module of a portable radio communication lithium battery pack of the utility model;

[0020] Figure 3 The utility model shows a schematic diagram of the structure decomposition of a portable radio communication lithium battery pack.

[0021] The meanings of the numbers in the figure are: 1, housing, 2, wire, 3, plug, 4, battery module;

[0022] Among them, 401, battery cell, 402, fixing frame, 4021, limiting fixing plate, 4022, card slot, 4023, supporting limiting member, 4023A, supporting foot, 4023B, supporting block, 403, nickel strip, 404, insulating plate, 405, PCB board, 406, connecting piece. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, devices, components and / or their combinations.

[0025] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of description and simplification of description. In the absence of any contrary instructions, these directional words do not indicate or imply that the device or device referred to must have a specific direction or a specific directional structure and operation, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0026] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of use or operation in addition to the orientation of the device described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices and structures" is then positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways such as rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0027] Example: Figure 1 and 2 As shown, this embodiment is a portable radio communication lithium battery pack, including a housing 1 and a battery module 4 disposed in the housing 1. The output end of the battery module 4 is connected to a plug 3 through a wire 2, thereby providing a voltage output for the portable radio. Figure 3As shown, the battery module includes a plurality of battery cells 401 connected in series and two fixing frames 402, a nickel strip 403, an insulating plate 404 and a PCB board 405 respectively arranged at both ends of the battery cells 401. The fixing frame 402 includes a limiting fixing plate 4021 and a supporting limiting member 4023. The limiting fixing plate 4021 is provided with slots 4022 equal to the number of the battery cells 401. The slots are adapted to the battery cells so that each battery cell 401 is stuck in the corresponding slot 4022 during use to prevent it from shifting or tilting during use. The support limiter 4023 is fixed on the side of the limit fixing plate 4021 away from the battery cell 401, and is used to limit the nickel strip 403 connected to each battery cell 401 and the battery cell 4021 to prevent the nickel strip and the battery cell from shifting during use and affecting the normal output of the battery voltage; the two insulating plates 405 are respectively abutted against the corresponding support limiters 402; the "sandwich" structure design can fully protect the battery cell while making the battery module structure more compact, preparing for reducing the battery volume. A PCB board 405 is arranged on one side of one of the two insulating boards 404 away from the nickel strip 403. The output terminal of the PCB board 405 is connected to a plug 3 connected to a portable radio station through a wire 2. A connecting piece 406 is fixedly connected to one side of the nickel strip 403 near one end of the PCB board 405. The connecting piece 406 and the nickel strip 403 are an integrally formed structure. Specifically, one side of the nickel strip 403 has a nickel sheet extending outward, and the nickel sheet is bent 90 degrees twice to form a nearly U-shaped structure. The input end of the PCB board 405 is connected to the nickel strip 403 through the connecting piece 406. The housing 1 of this embodiment is a heat shrink tube, which is coated on the outside of the battery module 4 to form a shell. During assembly, the battery module 4 is inserted into the heat shrink tube with openings at both ends. The heat shrink tube shrinks and coats the outside of the battery module after heating and pressurization. The assembly is simple and low in cost. The heat shrink tube can completely coat the battery module, making full use of the space inside the tube and reducing the volume of the battery.

[0028] In the embodiment, the specific structure of the support limiter is as follows: Figure 3As shown, the support limiter 4023 includes support feet 4023A fixed on the four edges and four corners of the limiter fixing plate 4021 and a support block 4023B fixed in the middle of the limiter fixing plate 4021; the plurality of support feet and the support blocks arranged at intervals extend toward the direction of the card slot, and each of the support feet 4023A and the support block 4023B partially overlaps with the corresponding card slot 4022 in the projection direction, that is, there is a support block 4023B in the first and second quadrants of one of the card slots 4022, and there is a support block 4023B in the third and fourth quadrants. Support foot 4023A, but the support foot 4023A and support block 4023B in each quadrant cover 1 / 8 to 1 / 12 of the slot 4022, not completely, so that the support foot 4023A and the support block 4023B can cooperate with the limiting fixing plate 4021 to limit and support the nickel strip 403; wherein, there are gaps adapted to the nickel strip 403 between the support block 4023B and the limiting fixing plate 4021, and between the support foot 4023A and the limiting fixing plate 4021, so that the nickel strip 403 can be placed in the gap.

[0029] Several support legs 4023A are arranged at intervals, and each support leg 4023A is an L-shaped structure formed by extending the edge of the limiting fixing plate 4021 in a direction away from the battery cell 401 and bending inward at 90 degrees. The support legs 4023A and the limiting fixing plate 4021 are an integrally formed structure. A plurality of support blocks 4023B are arranged at intervals on the side of the limiting fixing plate 4021 away from the battery cell 401, and the support blocks 4023B are fixed to the limiting fixing plate 4021 through connecting columns, so that there is a gap between the support blocks 4023B and the limiting fixing plate 4021.

[0030] The surfaces of one side of each supporting foot 4023A and each supporting block 4023B away from the limiting fixing plate 4021 are located in the same plane, so that each supporting foot 4023A and each supporting block 4023B are in contact with the corresponding insulating plate 404 to ensure the insulation effect.

[0031] The card slot 4022 is a stepped hole formed by a through hole opened at the bottom of the slot. The bottom thickness of the card slot 4022 is less than the height of the positive electrode connecting column of the battery cell 401 to ensure that the positive electrode connecting column of the battery cell 401 can extend out of the slot 4022 and connect with the nickel strip 403. The diameter of the through hole opened at the bottom of the card slot 4022 is smaller than the diameter of the battery cell to limit the battery cell 401.

[0032] The portable radio communication lithium battery pack using the above embodiment has a sandwich structure design of battery cells, fixing frames, nickel strips, and insulating plates, which is compact and can effectively reduce the battery volume. The shell adopts a heat shrink tube, which not only meets the insulation requirements, but also reduces the battery volume and reduces its weight.

[0033] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A portable radio communication lithium battery pack, comprising a housing and a battery module disposed in the housing, wherein the battery module comprises a plurality of battery cells connected in series and two fixing frames disposed at both ends of the battery cells, characterized in that: The fixing frame comprises: A limit fixing plate, on which a number of slots equal to the number of the battery cells and adapted to the battery cells are provided, so that each of the battery cells is stuck in a corresponding slot when in use; A support limiter, fixed on a side of the limit fixing plate away from the battery cell, for limiting the nickel strips connected to each of the battery cells and the battery cells; and Insulating plates, two of the insulating plates are respectively in contact with the corresponding supporting stoppers; A PCB board is arranged on one side of one of the insulating plates away from the nickel strip, the output terminal of the PCB board is connected to a plug connected to a portable radio station through an electric wire, a connecting piece is fixedly connected to one side of the nickel strip near one end of the PCB board, and the input end of the PCB board is connected to the nickel strip through the connecting piece.

2. The portable radio communication lithium battery pack according to claim 1, characterized in that: The shell is a heat shrink tube, which is wrapped around the outside of the battery module.

3. The portable radio communication lithium battery pack according to claim 1, characterized in that: The slot is a stepped hole formed by a through hole at the bottom of the slot. The thickness of the bottom of the slot is less than the height of the positive electrode connecting column of the battery cell. The diameter of the through hole at the bottom of the slot is less than the diameter of the battery cell.

4. The portable radio communication lithium battery pack according to claim 1, characterized in that: The support and limiter comprises support feet fixed on the four edges and four corners of the limiter fixing plate and a support block fixed in the middle of the limiter fixing plate; A plurality of support legs and support blocks arranged at intervals all extend in the direction of the card slot, and each of the support legs and support blocks partially overlaps with the corresponding card slot in the projection direction; There are gaps adapted to the nickel strip between the support block and the limiting fixing plate, and between the support foot and the limiting fixing plate, so that the nickel strip is placed in the gaps.

5. The portable radio communication lithium battery pack according to claim 4, characterized in that: Each of the support legs is an L-shaped structure formed by extending the edge of the limiting fixing plate in a direction away from the battery cell and bending inward at 90 degrees. The support legs and the limiting fixing plate are an integrally formed structure.

6. The portable radio communication lithium battery pack according to claim 5, characterized in that: A plurality of the support blocks are arranged at intervals on a side of the position limiting fixing plate away from the battery cell, and the support blocks are fixed to the position limiting fixing plate via connecting columns so that there is a gap between the support blocks and the position limiting fixing plate.

7. The portable radio communication lithium battery pack according to claim 6, characterized in that: A surface of each supporting foot and a surface of each supporting block on one side away from the limiting fixing plate are located in the same plane.

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