Satellite storage battery anti-vibration, insulation and heat conduction optimized general battery cell module

CN223401834UActive Publication Date: 2025-09-30SHANGHAI FUXIXINKONG TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422422168.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-09-30
Estimated Expiration
2034-10-09

AI Technical Summary

Technical Problem

The existing satellite battery modules have problems in structural design, such as cumbersome assembly, insufficient vibration resistance and heat dissipation capabilities, which lead to an increase in overall size and damaged insulation performance, affecting the stability of power output and the normal operation of the satellite system.

Method used

The module adopts components such as end hole tray, pull rod, series guide plate and total electrode guide plate, and realizes the fixation and insulation of battery cells through structural designs such as extreme clamping holes, through-holes, limit blocks and edge clamping slots. Combined with insulating thermal conductive silicone rubber and thermal conductive layer, the module's vibration resistance and heat dissipation capacity are optimized.

Benefits of technology

It achieves simple assembly and high structural strength of the module, enhances the anti-vibration buffering effect, ensures the insulation performance of the battery cells, optimizes the heat dissipation performance of the module, supports standardized design, improves satellite development efficiency and reduces manufacturing and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

An upper end hole plate rack and a lower end hole plate rack which are identical in structure are oppositely and symmetrically arranged in parallel, a pull rod is connected between the upper end hole plate rack and the lower end hole plate rack in a penetrating mode, and the upper end and the lower end of a battery cell array are fixedly connected in a sleeved mode. The plate end folding lugs of the serial flow guide plates or the plate edge folding lugs of the total electrode flow guide plates are inserted into the edge pressing clamping grooves of the end hole plate frames, and the total electrode flow guide plates are used as welding connection leading-out of module total electrodes and electrode wires. The bottom surface of the module is coated with an insulating heat-conducting silica gel heat-conducting The module assembly convenience, the structural strength and the anti-vibration buffer performance are ensured, and the assembly standardization and universality of the battery cell and the bracket are effectively enhanced. On the premise of meeting simple assembly and convenient wiring of the module, a heat conduction function of heating or heat dissipation between the storage battery module and an external environment is realized, different types of battery core combinations of the satellite storage battery module can be expanded and adapted, the development efficiency of a satellite is supported and improved, and the manufacturing and maintenance cost of a satellite system is reduced.
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Description

Technical Field

[0001] The utility model belongs to the field of structural components or manufacturing technology of IPC classification H02J7 / 34 dual-purpose battery series-parallel assembly or H01M50 / 00 electrochemical battery inactive components other than fuel cells, and particularly relates to a structural innovation and improvement technology for a satellite battery core module device. Background Art

[0002] A satellite's power system is crucial for its normal operation, ensuring it has sufficient energy throughout its mission. Batteries are energy storage devices in satellite power systems, primarily used to provide power during periods when solar panels are unable to operate, such as during Earth's shadow.

[0003] Currently, nickel-metal hydride (NiMH) and lithium-ion (Li-ion) batteries are commonly used in satellites. These two types differ in energy density, cycle life, and temperature characteristics, and designers must select the right one based on the satellite's needs. The molding method and structure of satellite battery modules are key technologies for ensuring stable satellite operation in the complex space environment. As the satellite's single power source, satellite batteries must possess high energy density, a compact size, high structural strength, and effective heat transfer.

[0004] Patent application 202122001459.1 relates to a standard satellite battery module. The satellite power supply system includes at least: a power generation device, which is used to convert the acquired solar energy into electrical energy for use by the system load or to provide it to the energy storage device for storage; an energy storage device, which includes a battery pack composed of a number of single cells connected in series and parallel. The battery pack is used to store the electrical energy converted by the power generation device for use when the satellite system cannot utilize solar energy or the required power exceeds the power of the solar power supply device. The energy storage cell housing of at least one energy storage cell in the battery pack is partially connected to at least one pressure relief portion, and the shell side of the energy storage cell housing is connected to at least one shockproof portion.

[0005] This type of improvement technology aims to streamline the structure of the battery module while maintaining its structural stability, improve its anti-vibration and heat dissipation capabilities, and attempt to enhance its adaptability and scalability, so as to facilitate the exploration and formation of a standardized modular design of the battery module, improve the satellite development efficiency and reduce the cost of the entire satellite, and ensure the stability of the battery module power output.

[0006] Although many efforts have been made in the technical solutions proposed in subsequent published documents, a more ideal solution has not yet been obtained; for example, patent application CN 116315349 A discloses a fixing device for a lithium battery module with a pull rod structure, which includes a first bracket and a second bracket. A battery cell array is inserted into the hole between the first bracket and the second bracket, and the first bracket and the second bracket, the first pressure plate, and the second pressure plate are fixed by pull rods and screws, and the guide bar is bent to the side plate between them and the wires are soldered.

[0007] This simplified battery module structure improves mechanical strength, but assembly remains cumbersome, and vibration and heat dissipation capabilities remain insufficient. The presence of pressure plates at both ends of the module prevents external heating of the battery module and prevents effective heat dissipation. The upper and lower pressure plates also increase the overall height and size of the battery. Furthermore, the protrusion of guide bars and weld points on the outer edges of the bracket poses a risk of insulation damage.

[0008] In the existing technology, satellite batteries are generally assembled by connecting cells in series and parallel using a universal bracket with cell slots. The modules are then spot-welded with guide bars and soldered with wires to form a module. Insulation tape or pads are then used on both ends of the module for insulation protection. This modular assembly method has many drawbacks for satellite batteries, especially its limited versatility. These include:

[0009] (1) The assembly method of both end faces of the module fails to take into account both insulation protection and the heat transmission performance between the module and the outside world.

[0010] (2) The guide bar is bent to the outer edge of the bracket. Since there is no slot on the outer edge of the universal bracket, it is easy for the guide bar to bulge at the soldering point with the wire, which can easily cause the protruding solder point to warp and occupy space, and there is a risk of contacting the battery shell. Utility Model Content

[0011] In response to the above problems and technical needs, the utility model proposes a universal battery cell module with optimized vibration resistance and insulation and thermal conductivity for satellite batteries. The module assembly convenience, structural strength and anti-vibration buffering performance are guaranteed, effectively enhancing the standardization and universality of battery cell and bracket assembly.

[0012] To this end, the utility model includes an end hole rack, a pull rod, a series guide plate, a total electrode guide plate and an electrode end surface insulating gasket; it is characterized in that the end hole rack includes an extreme clamping hole, a through hole and a pressure edge clamping groove; the series guide plate includes a plate end folding ear, and the total electrode guide plate includes a plate edge folding ear; as the upper bracket and the lower bracket of the module, the upper and lower end hole racks with exactly the same structure are arranged oppositely and parallel to each other, and in the middle, the corresponding extreme clamping holes of the two end hole racks are used to hold the battery array The upper and lower ends are sleeved and fixed; the upper and lower end hole disk frames are each provided with a through hole on the opposite side edges to install the through rod; the four outer side surfaces of the end hole disk frame are evenly spaced to set the edge pressure slots, and the plate end folding ears of the series guide plate or the plate edge folding ears of the total electrode guide plate are inserted into the edge pressure slots to fix the series guide plate or the total electrode guide plate to the end hole disk frame, and the total electrode guide plate is used as the total electrode of the module and is welded to the electrode wire; the bottom surface of the end hole disk frame at the bottom of the module is coated with a thermal conductive layer.

[0013] Among them, the outer edge of the total electrode guide plate installed from the edge of the top end hole disk frame is bent downward and then horizontally to connect the electrode wire of the total positive pole. At the same time, the outer edge of the total electrode guide plate installed from the edge of the bottom end hole disk frame is bent upward and then horizontally to connect the electrode wire of the total negative pole.

[0014] The end hole disc rack comprises extreme clamping holes, through holes, limiting blocks, edge pressure slots and heat dissipation holes; heat dissipation holes are evenly distributed on the connection parts between the extreme clamping holes arranged in an array on the middle surface of the end hole disc rack; through holes are opened on the two opposite side edges of the inner end surface edge of the end hole disc rack; edge pressure slots are arranged at intervals on the outer facade of the frame around the end hole disc rack; limiting blocks are arranged around the opening ring of each heat dissipation hole in the middle of the outer end surface of the end hole disc rack, and the local edge of the bottom of the limiting block protrudes from the opening edge of the extreme clamping hole on the outer end surface of the end hole disc rack.

[0015] The series guide plate is a long Π-shaped strip plate with two bent ends; the series guide plate includes a folded end plate body, an array unit limiting card hole, a plate end notch, a plate end folding ear, and a double-side plate edge groove; a row of array unit limiting card holes spaced apart from each other are provided in the middle of the folded end plate body in the extension direction, and a row of short strip through-hole-shaped double-side plate edge grooves are spaced apart on the edges of the folded end plate body on both sides of the row of array unit limiting card holes, a plate end notch is respectively opened in the middle of both ends of the folded end plate body, and the two side edges of the two ends of the folded end plate body are partially bent, that is, there are plate end folding ears on both sides of the plate end notch.

[0016] The total electrode guide plate is long and narrow, and the two ends and one side edge of the total electrode guide plate are bent. The total electrode guide plate includes a folded plate body, a plate edge notch, a single-side plate edge line groove and a plate edge folded ear; a row of single-side plate edge line grooves spaced apart from each other are opened in the extension direction of the folded plate body, and plate edge folded ears are formed at the two ends and one side of the folded plate body.

[0017] The junctions between the battery core and the extreme clamping holes of the upper and lower end hole racks are coated with insulating heat-conducting silicone rubber.

[0018] To achieve the above objectives, the present invention provides the following technical solutions:

[0019] Specifically, each single stop block features four evenly spaced stop points, with the heat dissipation holes opening in the middle of these four points. The thermal conductive layer is evenly aligned with the heat dissipation holes. The junctions between the pull rod and the through-holes of the upper and lower end tray frames are coated with insulating silicone rubber. The through-holes are blind.

[0020] Compared with the prior art, the beneficial effects of the present invention are: under the premise of satisfying the requirements of simple module assembly and convenient wiring, the assembled module has a compact structure, high strength, and good anti-vibration and buffering effect. The upper and lower ends of the battery cell are interference fit with the extreme clamping holes, and the module assembly is firmly formed. Insulating washers are installed on the positive and negative electrodes of the upper and lower ends of the battery cell, and the outer side of the plate edge folding ear welding electrode wire position set at the edge of the total electrode guide plate is coated with an insulating coating, that is, the side electrode welding points are physically isolated and insulated, ensuring the insulation performance of the module electrodes and electrode wires, while further absorbing and buffering the vibration and deformation effects introduced from the outside, optimizing the anti-vibration performance of the module, and being able to reduce the collision pressure inside the battery pack. On the basis of maintaining the structural stability of the battery pack, the stability of the battery pack power output is guaranteed. The thermally conductive, insulating silicone rubber coated on the lower end of the module also facilitates heat conduction between the battery module and the external environment, maximizing the rapid absorption and dissipation of heat generated by the battery module, allowing the module to maintain a suitable operating temperature, thereby ensuring the stable operation of the power system and the normal operation of the entire satellite system. This facilitates the standardized, universal modular design of satellite battery modules, enabling expansion and adaptation to different cell combinations for satellite battery modules, supporting and improving satellite development efficiency and reducing satellite system manufacturing and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way.

[0022] Figure 1 This is a schematic diagram of the front axonometric structure of the satellite battery module assembly in Example 1 of the present utility model.

[0023] Figure 2 This is a schematic diagram of the axonometric structure of the satellite battery module assembly in Example 1 of the present utility model.

[0024] Figure 3 This is a schematic diagram of the bottom upward structure of the satellite battery module assembly of Example 1 of the utility model.

[0025] Figure 4 This is a schematic diagram of the main structural assembly of the satellite battery module in Example 1 of the present utility model.

[0026] Figure 5 This is a schematic diagram of the axonometric structure of the middle hole disk rack in Example 1 of the utility model. Figure 1 .

[0027] Figure 6 This is a schematic diagram of the axonometric structure of the middle hole disk rack in Example 1 of the utility model. Figure 2 .

[0028] Figure 7 This is a schematic diagram of the pull rod structure in Example 1 of the utility model.

[0029] Figure 8 This is a schematic diagram of the structure of the series guide plates in Example 1 of the utility model.

[0030] Figure 9 This is a schematic diagram of the structure of the total electrode guide plate in Example 1 of the present utility model.

[0031] Figure 10 This is a schematic diagram of the assembly structure of the battery cell and the electrode end surface insulating gasket in Example 1 of the present utility model.

[0032] Reference numerals include:

[0033] 1-end hole plate rack, 2-pull rod, 3-series guide plate, 4-total electrode guide plate, 5-electrode end surface insulation gasket, 6-battery core, 7-electrode wire, 8-heat conductive layer;

[0034] 11-extreme card hole, 12-through hole, 13-limit block, 14-edge pressure slot, 15-heat dissipation hole;

[0035] 31- folded end plate, 32- array unit limit card hole, 33- plate end notch, 34- plate end folding ear, 35- double side plate edge groove;

[0036] 41- folded edge plate body, 42- plate edge notch, 43- single side plate edge groove, 44- plate edge folding ear;

[0037] 51-Insulation washer on the positive terminal surface, 52-Insulation washer on the negative terminal surface. DETAILED DESCRIPTION

[0038] In the present invention, the following module refers to the core module of the satellite battery, which can be further installed as a satellite battery unit after being assembled into a shell. The vibration resistance, insulation and thermal conductivity requirements of the satellite battery module are multifaceted and comprehensive. These requirements need to be fully considered during the design and production process, and corresponding measures need to be taken to ensure that the module can meet the needs of space missions. In the present invention, the satellite battery module will generate a certain amount of heat during operation. If the heat cannot be dissipated in time, it will affect the performance and life of the battery. Therefore, the module needs to have good thermal conductivity to ensure the effective transfer and dissipation of heat.

[0039] The utility model comprises: an end hole disc frame 1, a pull rod 2, a series guide plate 3, a total electrode guide plate 4 and an electrode end surface insulating washer 5.

[0040] The current guide bars of satellite battery modules are divided into series current guide bars and parallel current guide bars. Furthermore, the parallel current guide bars refer to the module's total positive and negative current guide bars, while the series current guide bars are those connecting the module's positive and negative electrodes. The current guide bars are spot-welded to the module's cell electrodes, allowing the cells to output electrical energy through the current guide bars. The current guide bars in this utility model include a series current guide plate 3 and a total electrode current guide plate 4, with the total electrode current guide plate 4 serving as both the total positive and total negative current guide bars for the parallel current guide bars.

[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0042] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

[0043] Example 1: Taking the 18650 battery cell 7 series and 8 parallel modules as an example, the cylindrical battery cells 6 are assembled into a 7×8 array satellite battery module, as shown in the attached figure. Figure 1 、 2 As shown, two identically structured end-hole trays 1, serving as the upper and lower supports of the module, are arranged symmetrically and parallel to each other. In the middle, corresponding extreme clamping holes 11 on the two end-hole trays 1 effectively secure the upper and lower ends of the cylindrical battery cell array 6. Six through-holes 12 are located on the opposing side edges of the upper and lower end-hole trays 1 for installing through-hole tie rods 2 during module assembly. Evenly spaced edge clamping slots 14 are provided on the four outer sides of the end-hole trays 1 for inserting the end tabs 34 of the series guide plates 3 or the edge tabs 44 of the main electrode guide plates 4, thereby securing the series guide plates 3 or the main electrode guide plates 4 to the end-hole trays 1. The main electrode guide plates 4 serve as the module's main electrode for welding to the electrode conductors 7.

[0044] In the embodiment of the present utility model, as shown in the attached Figure 3 As shown, the bottom surface of the bottom end hole tray 1 is coated with insulating thermally conductive silicone to form a thermally conductive layer 8. Furthermore, the thermally conductive layer 8 is evenly bonded to the heat dissipation holes 15, forming a good thermal conductivity structure, which satisfies the heat dissipation of the battery cells 6 inside the module and allows the thermally conductive layer 8 to quickly heat the module when it needs to be kept warm.

[0045] In the embodiment of the present utility model, as shown in the attached Figure 4 As shown, the outer edge of the total electrode guide plate 4 installed from the edge of the top end hole disk rack 1 is bent downward and then horizontally to connect the total positive electrode wire 7. At the same time, the outer edge of the total electrode guide plate 4 installed from the edge of the bottom end hole disk rack 1 is bent upward and then horizontally to connect the total negative electrode wire 7.

[0046] In the embodiment of the present invention, the end hole rack 1 is the supporting frame of the battery module, and an end hole rack 1 is installed in parallel on the top and bottom of each battery module. Figure 5 、 6 As shown, the end-hole tray 1 includes extreme clamping holes 11, through-holes 12, stoppers 13, edge-pressing slots 14, and heat dissipation holes 15. Φ3.5 through-holes 15 are evenly distributed at the connection points between the arrayed extreme clamping holes 11 on the central surface of the end-hole tray 1. These serve as heat dissipation channels for the entire module, increasing the module's structural strength and toughness while also contributing to module weight reduction. Through-holes 12 are formed on the inner end edges of the end-hole tray 1, facing the two side edges. In particular, through-holes 12 are blind holes. Edge-pressing slots 14 are spaced apart on the exterior facade of the frame surrounding the end-hole tray 1. A limit block 13 is provided around the opening of each heat dissipation hole 15 in the middle of the outer end face of the end hole rack 1. The bottom edge of the limit block 13 partially protrudes from the opening edge of the extreme clamping hole 11 on the outer end face of the end hole rack 1. In particular, the height of the limit block 13 is 0.6-1.0 mm. Each single limit block 13 has four evenly distributed limit posts, and the heat dissipation hole 15 opens in the middle of these four limit posts. The limit block 13 has two main functions: first, it blocks and limits the end face of the battery cell 6 inserted into the extreme clamping hole 11; second, the height of the limit block 13 is higher than the electrode surface of the battery cell 6 exposed at the extreme clamping hole 11 on the upper and lower end faces of the module, as well as the surface of the series guide plate 3 and the total electrode guide plate 4, thereby ensuring that the conductive metal surfaces of the series guide plate 3 and the total electrode guide plate 4 are effectively insulated from the outer surface of the module due to physical isolation.

[0047] In the embodiment of the present utility model, as shown in the attached Figure 7As shown, the pull rod 2 is in the shape of a long rod, with the center line coinciding with the center axis. The overall structure is a cylindrical shape with equal outer diameter, or a regular triangular prism, quadrangular prism or polygonal prism with equal cross-section, or a variable diameter long rod shape with the same structure at both ends and a thicker or thinner middle portion. The two ends of the pull rod 2 are respectively inserted into the corresponding through-holes 12 of the two end hole disc racks 1 provided at the upper and lower positions by interference fit. It can be understood that it is installed as a column between the upper bracket and the lower bracket of the module, but it is more than that. Specifically, the role of the pull rod 2 is to strengthen the overall mechanical strength of the module and to assist in fixing the electrode wire 8 harness, that is, the electrode wire 8 soldered on the surface of the plate end folding ear 34 and the plate edge folding ear 44 in the edge clamping groove 14 along the vertical surface of the module side is fixed when the wiring passes through the pull rod 2.

[0048] In the embodiment of the present utility model, as shown in the attached Figure 8 As shown, the series guide plate 3 is a long, Π-shaped strip plate. The two ends are bent. The series guide plate 3 includes a folded end plate body 31, array unit limiting card holes 32, plate end notches 33, plate end folding ears 34, and double-side plate edge grooves 35. A row of mutually spaced array unit limiting card holes 32 is provided in the middle of the folded end plate body 31 in the extension direction. A row of short, through-hole-shaped double-side plate edge grooves 35 are provided at intervals on the edges of the folded end plate body 31 on both sides of the row of array unit limiting card holes 32. A plate end notch 33 is provided in the middle of both ends of the folded end plate body 31. The two side edges of the two ends of the folded end plate body 31 are partially bent, i.e., plate end folding ears 34 are provided on both sides of the plate end notches 33. During installation, the array unit limiting card holes 32 are stuck outside the limiting blocks 13 at the corresponding positions.

[0049] In the embodiment of the present utility model, as shown in the attached Figure 9 As shown, the two ends and one side edge of the long strip of the total electrode guide plate 4 are bent, and the total electrode guide plate 4 includes a folded plate body 41, a plate edge notch 42, a single-side plate edge line groove 43 and a plate edge folded ear 44; a row of single-side plate edge line grooves 43 spaced apart from each other are opened in the extension direction of the folded plate body 41, and plate edge folded ears 44 are partially bent at both ends and one side of the folded plate body 41.

[0050] In the embodiment of the present utility model, as shown in the attached Figure 10 As shown, the electrode end surface insulating gasket 5 is annular. The annular electrode end surface insulating gasket 5 is mounted on the positive and negative surfaces of the battery cell 6. The electrode end surface insulating gasket 5 protects the electrode end surface of the battery cell 6. The electrode end surface insulating gasket 5 can be made of rubber, plastic, mica, or paper.

[0051] In the foregoing description, the double-side plate edge line grooves 35 and the single-side plate edge line grooves 43 designed on the series guide plate 3 and the main electrode guide plate 4 are elongated through-holes. The series guide plate 3 and the main electrode guide plate 4 are clamped to the outer end surface of the end hole tray frame 1. The double-side plate edge line grooves 35 and the single-side plate edge line grooves 43 are aligned and crimped onto the middle portion of the positive or negative electrode exposed at the upper and lower ends of the battery cells 6 at the extreme clamping holes 11. Furthermore, when the exposed middle surface of the positive or negative electrode at the upper and lower ends of these battery cells 6 is spot welded to the edges of the double-side plate edge line grooves 35 and the single-side plate edge line grooves 43, the resistance heat from the high spot welding current is concentrated at the spot welds at both ends of the hole grooves, which is conducive to forming stable welds and enhancing spot weld strength.

[0052] In the embodiment of the utility model, the first aspect is to fix the series guide plate 3 and the total electrode guide plate 4 through the edge pressing groove 14, so as to physically isolate the series guide plate 3, the total electrode guide plate 4 and the satellite battery module shell structure to achieve the purpose of insulation protection. The second aspect is to facilitate the soldering of the electrode wire 7 of the total electrode guide plate 4 and to lead out the wiring on the side facade of the satellite battery module.

[0053] In the present embodiment, the battery cells 6 are 18650 and 21700 cells. These two types of cells 6 are ternary lithium-ion batteries with high energy density and long cycle life, and are widely used in space batteries. Before the cylindrical cells are connected to the bracket holes, insulating pads are first applied to the positive and negative surfaces of the cells. This serves two main purposes: first, to strengthen the insulation strength between the cell electrodes and the bracket, preventing short circuits and providing secondary insulation; second, to protect the cell electrodes and enhance their resistance to vibration and impact.

[0054] In the embodiment of the present invention, the end hole tray frame 1 is preferably made of an insulating, lightweight material with high mechanical strength, and is processed from a plate material, including a polyimide plate, a nylon plate, a bakelite plate, an ABS plastic plate, a PC plastic plate, a PC / ABS plastic alloy plate, etc. A bracket made of a polyimide plate is preferred, as it has high mechanical strength, good insulation performance, and low density.

[0055] Preferably, the material options for the pull rod 2 are lightweight aluminum alloy material and polyimide material, and the column is preferably made of polyimide material.

[0056] Preferably, the series guide plate 3 and the total electrode guide plate 4 are made of conductive metal. The spot-welded guide bar options in the present invention include pure nickel guide bars and steel nickel-plated guide bars. The module spot-welded guide bars in the present invention are preferably pure nickel guide bars with a thickness of 0.20 mm.

[0057] In the embodiment of the present utility model, there are mainly two types of silicone rubber, one is insulating and fixing silicone rubber, and the other is insulating and heat-conducting silicone rubber. Among them, the junction between the battery cell 6 and the extreme clamping holes 11 of the upper and lower end hole racks 1 is coated with insulating and heat-conducting silicone rubber; the surface of the soldering part between the plate end folding ear 34 or the plate edge folding ear 44 inserted in the side edge pressure card groove 14 of the end hole rack 1 and the electrode wire 7 is coated with insulating and fixing silicone rubber, and the thickness of the silicone rubber at the soldering part is not higher than the outer edge of the pressure card groove 14 after curing. The junction between the pull rod 2 and the through hole 12 of the upper and lower end hole racks 1 is coated with insulating and fixing silicone rubber. The aforementioned insulating and fixing glue can tightly bond the connection surface after curing, thereby enhancing the tensile strength of the connection surface. At the same time, the elastic effect of the glue after curing can effectively enhance the buffering effect of the battery module during vibration, thereby preventing the battery cell 6 from suffering mechanical damage in a vibration environment.

[0058] After the bottom surface of the lower end hole tray frame 1 at the bottom of the module is snap-fitted and connected to the series guide plate 3 and the main electrode guide plate 4, an insulating and thermally conductive silicone rubber layer 8 is applied. In other words, the insulating and thermally conductive silicone rubber is evenly spread across the lower end surface of the module, providing both insulation and heat conduction.

[0059] It should be noted that the lower end face of the module is in close contact with the inner surface of the base of its external container, the battery housing. Conventional technology generally heats the outer surface of the battery base, transferring the heat to the inner surface of the base. Simultaneously, the inner surface of the base transfers the heat to the lower end face of the module, and thus to the entire battery module, thereby increasing the temperature of the battery module and preventing the battery from failing to provide power in low-temperature environments. This solution needs to be established as a universal standard.

[0060] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on this application. In this application, unless otherwise expressly specified and limited, terms such as "installed", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection.

[0061] The present invention further illustrates the technical solutions through the above embodiments. However, it should be noted that the present invention should not be mistakenly considered to be limited to these embodiments. In the technical field to which the present invention belongs, ordinary technicians may easily come up with several simple deductions or replacement technical solutions without departing from the overall concept of the present invention and without inventive work. Such solutions should be considered to fall within the scope of protection defined by the claims submitted for the present invention.

Claims

1. A universal core module for satellite batteries with optimized vibration resistance, insulation and thermal conductivity, comprising an end hole disc frame (1), a pull rod (2), a series guide plate (3), a total electrode guide plate (4) and an electrode end surface insulating washer (5); characterized in that: The end hole disc rack (1) includes an extreme clamping hole (11), a through hole (12) and a pressure edge clamping groove (14); the series guide plate (3) includes a plate end folding ear (34), and the total electrode guide plate (4) includes a plate edge folding ear (44); as the upper bracket and lower bracket of the module, the upper and lower end hole disc racks (1) with the same structure are opposite and parallel and symmetrically arranged, and the middle part thereof is connected and fixed with the extreme clamping holes (11) corresponding to the two end hole disc racks (1); the upper and lower end hole disc racks (1) are respectively provided with through holes on the opposite side edges. The connecting hole (12) is used to install the through-pull rod (2); the four outer side surfaces of the end hole disc frame (1) are evenly spaced to set the edge pressure grooves (14); the plate end folding ears (34) of the series guide plate (3) or the plate edge folding ears (44) of the total electrode guide plate (4) are inserted into the edge pressure grooves (14) to fix the series guide plate (3) or the total electrode guide plate (4) to the end hole disc frame (1), and the total electrode guide plate (4) is welded to the electrode wire (7) as the total electrode of the module; the bottom surface of the end hole disc frame (1) at the bottom of the module is coated with a heat conductive layer (8).

2. The universal battery core module with optimized vibration resistance, insulation and thermal conductivity for satellite batteries according to claim 1, characterized in that: The outer edge of the total electrode guide plate (4) installed on the edge of the top end hole disk frame (1) is bent downward and then horizontally to connect the total positive electrode wire (7). At the same time, the outer edge of the total electrode guide plate (4) installed on the edge of the bottom end hole disk frame (1) is bent upward and then horizontally to connect the total negative electrode wire (7).

3. The universal battery core module with optimized vibration resistance, insulation and thermal conductivity for satellite batteries according to claim 1, characterized in that: The end hole rack (1) comprises an extreme clamping hole (11), a through hole (12), a limiting block (13), a pressure edge clamping groove (14) and a heat dissipation hole (15); the heat dissipation holes (15) are evenly distributed at the connection parts between the extreme clamping holes (11) arranged in an array on the middle surface of the end hole rack (1); the end hole rack (1) has a through hole (12) on the two opposite side edges at the inner end surface edge; the pressure edge clamping groove (14) is arranged at intervals on the outer facade of the frame around the end hole rack (1); a limiting block (13) is arranged around the hole opening of each heat dissipation hole (15) in the middle of the outer end surface of the end hole rack (1), and the bottom partial edge of the limiting block (13) protrudes from the opening edge of the extreme clamping hole (11) on the outer end surface of the end hole rack (1).

4. The universal battery core module with optimized vibration resistance, insulation and thermal conductivity for satellite batteries according to claim 1, characterized in that: The series flow guide plate (3) is a long plate in the shape of a Π-shaped strip, with two ends bent; the series flow guide plate (3) comprises a folded end plate body (31), an array unit limiting card hole (32), a plate end notch (33), a plate end folding ear (34), and a double-side plate edge line groove (35); a row of mutually spaced array unit limiting card holes (32) is provided in the middle of the folded end plate body (31) in the extension direction; a row of short strip through-hole-shaped double-side plate edge line grooves (35) are respectively arranged at intervals on the edges of the folded end plate body (31) on both sides of the row of array unit limiting card holes (32); a plate end notch (33) is respectively opened in the middle of both ends of the folded end plate body (31); and two side edges of both ends of the folded end plate body (31) are partially bent, i.e., plate end folding ears (34) are provided on both sides of the plate end notch (33).

5. The universal battery core module with optimized vibration resistance, insulation and thermal conductivity for satellite batteries according to claim 1, characterized in that: The main electrode current guide plate (4) is in the shape of a long strip, and the two ends and one side edge of the main electrode current guide plate (4) are bent. The main electrode current guide plate (4) comprises a folded plate body (41), a plate edge notch (42), a single-side plate edge line groove (43) and a plate edge folding ear (44); a row of mutually spaced single-side plate edge line grooves (43) are provided in the extension direction of the folded plate body (41), and plate edge folding ears (44) are partially bent at both ends and one side of the folded plate body (41).

6. The universal battery core module with optimized vibration resistance, insulation and thermal conductivity for satellite batteries according to claim 1, characterized in that: The junction between the battery core (6) and the extreme clamping holes (11) of the upper and lower end hole racks (1) is coated with insulating heat-conducting silicone rubber.

7. The universal battery core module with optimized vibration resistance, insulation and thermal conductivity for satellite batteries according to claim 3, characterized in that: Each single limiting block (13) comprises four evenly distributed limiting column points, and the heat dissipation hole (15) opens in the middle of the four limiting column points.

8. The universal battery core module with optimized vibration resistance, insulation and thermal conductivity for satellite batteries according to claim 3, characterized in that: The heat-conducting layer (8) and the heat-dissipating holes (15) are evenly fitted.

9. The universal battery core module with optimized vibration resistance, insulation and thermal conductivity for satellite batteries according to claim 3, characterized in that: The joints between the pull rod (2) and the through holes (12) of the upper and lower end hole racks (1) are coated with insulating fixing silicone rubber.

10. The universal battery core module with optimized vibration resistance, insulation and thermal conductivity for satellite batteries according to claim 3, characterized in that: The through hole (12) is a blind hole.

Citation Information

Patent Citations

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    CN116315349A

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