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WO2025059299A1 - Agencement de batterie à sécurité intrinsèque à courant élevé - Google Patents

Agencement de batterie à sécurité intrinsèque à courant élevé Download PDF

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Publication number
WO2025059299A1
WO2025059299A1 PCT/US2024/046381 US2024046381W WO2025059299A1 WO 2025059299 A1 WO2025059299 A1 WO 2025059299A1 US 2024046381 W US2024046381 W US 2024046381W WO 2025059299 A1 WO2025059299 A1 WO 2025059299A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
contacts
positive
blade
contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/US2024/046381
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English (en)
Inventor
Jason Long
Jedediah Joaquin Mccann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Illumagear Inc
Original Assignee
Illumagear Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Illumagear Inc filed Critical Illumagear Inc
Publication of WO2025059299A1 publication Critical patent/WO2025059299A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present disclosure generally relates to battery connection arrangements, such as, for example, intrinsically safe battery connection arrangements for use with removable, high- current batteries.
  • intrinsically safe designs designed to supply a high current commonly include soldered wired connections or other fixed connections, which prevents the possibility of removing the battery or batteries. Without the ability to remove a battery from a host electronic device, the life of the electronic device may be dictated by the life of the battery, or servicing or replacement of the battery may be cumbersome and laborious.
  • Embodiments described herein provide intrinsically safe battery arrangements for use in a variety of applications, including high-current lighting, communication devices, and power tools.
  • the intrinsically safe battery arrangements allow removable batteries to be utilized in high-current applications while greatly reducing or eliminating the risk of a circuit interrupting and sparking (arcing).
  • the intrinsically safe battery arrangements may provide redundancy in the connections between the electronic device and the removable battery to prevent a circuit arcing if contact is lost at one point between the electronic device and the battery.
  • the battery enclosure may provide limited space for the battery to be displaced, further solidifying the connection between the electronic device and the battery.
  • an intrinsically safe battery arrangement for an electronic device may be summarized as including: a battery enclosure including a battery cavity; a positive terminal connector fixedly disposed within the battery enclosure and including one or more contacts; a negative terminal connector fixedly disposed within the battery enclosure and including one or more contacts; and a removable battery positioned within the battery enclosure including a positive terminal with one or more corresponding contacts to engage the one or more contacts of the positive terminal connector and a negative terminal with one or more corresponding contacts to engage the one or more contacts of the negative terminal connector.
  • Each of the one or more contacts of the positive and negative terminal connectors within the battery enclosure and the one or more corresponding contacts of the positive and negative terminals of the battery may be configured relative to each other to guarantee continuous contact therebetween irrespective of movement of the battery in a lateral direction, a longitudinal direction and a vertical direction within a confines of the battery cavity of the battery enclosure.
  • the one or more contacts of the positive and negative terminal connectors may be blade contacts and the corresponding contacts of the positive and negative terminals of the battery may comprise corresponding opposing spring-biased contacts extending into a respective contact receiving channel.
  • Each of the blade contacts of the positive and negative terminal connectors within the battery enclosure and the corresponding opposing spring-biased contacts of the positive and negative terminals of the battery may be configured relative to each other to guarantee continuous contact between each blade contact and at least one of the corresponding opposing spring-biased contacts irrespective of movement of the battery in the lateral direction within the confines of the battery cavity.
  • the blade contacts of the positive and negative terminal connectors may be configured relative to the positive and negative terminals of the battery and the maximum travel of the battery in the longitudinal direction to be of sufficient length to guarantee continuous contact between each blade contact and at least one of the corresponding opposing spring-biased contacts of the positive and negative terminals of the battery at the maximum travel of the battery in the longitudinal direction.
  • the blade contacts of the positive and negative terminal connectors may be configured relative to the positive and negative terminals of the battery and the maximum travel of the battery in the vertical direction to be of sufficient height to guarantee continuous contact between each blade contact and at least one of the corresponding opposing spring-biased contacts of the positive and negative terminals of the battery at the maximum travel of the battery in the vertical direction.
  • a contact point on each of the one or more blade contacts may change in the longitudinal direction.
  • the contact point on each of the one or more blade contacts changes in the vertical direction.
  • Contact between each of the one or more blade contacts of the positive and negative terminal connectors and at least one of the corresponding opposing spring-biased contacts of the positive and negative terminals of the battery may occur at the contact point.
  • at least one of the corresponding opposing spring-biased contacts of the positive and negative terminals of the battery may change a position in the lateral direction.
  • the blade contacts of the positive and negative terminal connectors may maintain contact with at least one of the corresponding opposing spring-biased contacts of the positive and negative terminals of the battery in response to displacement of the battery in at least one of the longitudinal direction, the vertical direction, and the lateral direction.
  • contact between each of the one or more blade contacts of the positive and negative terminal connectors and both of the corresponding opposing spring-biased contacts of the positive and negative terminals of the battery may transition to contact between each of the one or more blade contacts of the positive and negative terminal connectors and only one of the corresponding opposing spring-biased contacts of the positive and negative terminals of the battery.
  • the one or more contacts of the positive and negative terminal connectors each may comprise opposing spring-biased contacts extending into a respective contact receiving channel and each of the one or more corresponding contacts of the positive and negative terminals of the battery may include blade contacts.
  • Each of the blade contacts of the positive and negative terminals of the battery and the corresponding opposing spring-biased contacts of the positive and negative terminal connectors within the battery enclosure may be configured relative to each other to guarantee continuous contact between each blade contact and at least one of the corresponding opposing spring-biased contacts irrespective of movement of the battery in the lateral direction within the confines of the battery cavity.
  • Each of the positive and negative terminals of the battery may include at least three blade contacts and each of the positive and negative terminal connectors may include at least three corresponding contact receiving channels with opposing spring-biased contacts extending into each respective contact receiving channel.
  • Each of the at least three blade contacts of the positive terminals of the battery may be redundant and each of the at least three blade contacts of the negative terminals of the battery may be redundant.
  • Each of the opposing spring-biased contacts of the positive terminal connector may be redundant and each of the opposing spring-biased contacts of the negative terminal connector may be redundant.
  • the battery enclosure may be configured to limit maximum travel of the battery in the lateral direction, to limit maximum travel of the battery in the longitudinal direction, and to limit maximum travel of the battery in the vertical direction.
  • the blade contacts of the positive and negative terminals of the battery may be configured relative to the positive and negative terminal connectors and the maximum travel of the battery in the longitudinal direction to be of sufficient length to guarantee continuous contact between the blade contact and at least one of the corresponding opposing spring-biased contacts of the positive and negative terminal connectors at the maximum travel of the battery in the longitudinal direction.
  • the blade contacts of the positive and negative terminals of the battery may be configured relative to the positive and negative terminal connectors and the maximum travel of the battery in the vertical direction to be of sufficient height to guarantee continuous contact between the blade contact and at least one of the corresponding opposing spring-biased contacts of the positive and negative terminal connectors at the maximum travel of the battery in the vertical direction.
  • a contact point on each of the one or more blade contacts may change in the longitudinal direction.
  • the contact point on each of the one or more blade contacts may change in the vertical direction.
  • each of the one or more blade contacts of the positive and negative terminals of the battery and at least one of the corresponding opposing spring-biased contacts of the positive and negative terminal connectors may occur at the contact point.
  • at least one of the corresponding opposing spring-biased contacts of the positive and negative terminal connectors may change a position in the lateral direction.
  • the blade contacts of the positive and negative terminals of the battery may maintain contact with at least one of the corresponding opposing spring-biased contacts of the positive and negative terminal connectors in response to displacement of the battery in at least one of the longitudinal direction, the vertical direction, and the lateral direction.
  • contact between each of the one or more blade contacts of the positive and negative terminals of the battery and both of the corresponding opposing spring-biased contacts of the positive and negative terminal connectors may transition to contact between each of the one or more blade contacts of the positive and negative terminals of the battery and only one of the corresponding opposing spring-biased contacts of the positive and negative terminal connectors.
  • the battery enclosure may include a battery enclosure cover and a compression member configured to limit maximum vertical travel of the battery when the cover is secured over the battery cavity.
  • the battery may include an external casing having a notch configured to receive an extension of the battery enclosure of the electronic device during insertion of the battery in the electronic device.
  • the notch may be configured to assist in limiting maximum longitudinal travel of the battery.
  • the electronic device may be light-emitting headgear and the battery may be secured within the light-emitting headgear to provide an intrinsically safe lighting device.
  • the removable battery may be configured to discharge electric charge at a current of at least 13 amps, at least 8 amps, or at least 3.3 amps.
  • Figure 1 is a perspective view of an example of light-emitting headgear, which is provided as a non-limiting example of the types of applications that may be used in connection with disclosed embodiments of the intrinsically safe battery arrangements described herein.
  • Figure 2 is a side view of an intrinsically safe battery arrangement within the light-emitting headgear of Figure 1.
  • Figure 3 is a top view of the intrinsically safe battery arrangement of Figure 2.
  • Figure 4 is a perspective view of battery terminal connectors of the intrinsically safe battery arrangement of Figure 2.
  • Figure 5 is a top view of terminals of a battery of the intrinsically safe battery arrangement of Figure 2.
  • Figure 6 is a perspective view of terminals of the battery of the intrinsically safe battery arrangement of Figure 2.
  • Figure 7 is a top view of battery terminal connectors in contact with the terminals of the battery of the intrinsically safe battery arrangement of Figure 2.
  • Figures 8-15 show additional aspects of an example embodiment of light-emitting headgear including an intrinsically safe battery arrangement described herein.
  • Intrinsically safe battery arrangements must be incapable of generating heat or sparks to ignite flammable atmospheres. Heat and sparks may be avoided by ensuring a continuous connection between contacts of the intrinsically safe battery arrangement. This is accomplished in the present disclosure by a design configured to guarantee continuous contact between a battery and the device the battery is powering (also referred to herein as a host device or host electronic device).
  • the intrinsically safe battery arrangements 102 described herein may be advantageously included in host electronic devices 100, such as, for example, the light-emitting headgear shown in Figure 1.
  • An electronic device 100 may include an intrinsically safe battery arrangement 102 therein, as explained further below.
  • the electronic device 100 may act as an intrinsically safe device.
  • Figure 1 shows lightemitting headgear as the electronic device 100
  • the electronic device 100 can be any electronic device utilizing an intrinsically safe battery arrangement 102, including, but not limited to, power tools, communication devices, and lighting devices.
  • Figure 2 is a side cross-sectional view of the electronic device 100 showing an intrinsically safe battery arrangement 102 therein.
  • Figure 3 is a top cross-sectional view of the electronic device 100 showing an intrinsically safe battery arrangement 102 therein.
  • the electronic device 100 may include a battery enclosure 104, a positive terminal connector 108, and a negative terminal connector 112.
  • the battery enclosure 104 may include a battery cavity 120 therein.
  • a removable battery 116 may be positioned within the battery cavity 120 of the battery enclosure 104.
  • the removable battery 116 may comprise one or more battery cells.
  • the removable battery 116 may be a lithium-ion battery.
  • the removable battery 116 may be capable of discharging electricity at a high current.
  • the removable battery 116 may discharge electricity at a current of at least 13 amps, at least 8 amps, or at least 3.3 amps.
  • the battery cavity 120 may limit a maximum travel of the removable battery 116 in a lateral direction DI (z.e., parallel to a width of the battery cavity 120), a longitudinal direction D2 (z.e., parallel to a length of the battery cavity 120), and a vertical direction D3 (z.e., parallel to a height of the battery cavity 120).
  • Interior walls 124 of the battery cavity 120 (which may include an interior facing surface of a battery enclosure cover 128) may define maximum travel of the removable battery 116 by physically restraining where the removable battery 116 may be displaced in all orthogonal directions DI, D2, D3. It is appreciated that in doing so the interior walls 124 of the battery cavity 120 also constrain rotational motion (e.g., roll, yaw and pitch) of the removable battery 116.
  • the battery enclosure 104 may include a battery enclosure cover 128 which may cover the battery cavity 120 when the battery enclosure cover 128 is placed in a closed position, as shown in Figure 1.
  • the battery enclosure cover 128 may be restrained in the closed position by the use of a fastener, a retaining clip, or the like (not shown).
  • the fastener, the retaining clip, or the like may be configured to require the use of a tool to operate and unlock the battery enclosure cover 128 to open the battery enclosure cover 128 and reveal the underlying removable battery 116. This may discourage or prevent unintentional access and exposure of the removable battery 116 to a surrounding hazardous environment.
  • the battery enclosure 104 may include a compression member 132 disposed on an internal face 136 of the battery enclosure cover 128.
  • the compression member 132 is configured to at least partially compress in a space between the battery enclosure cover 128 and the removable battery to assist in physically limiting maximum vertical travel of the removable battery 116.
  • the compression member 132 may also be configured to assist in physically limiting maximum travel of the removable battery 116 in other directions.
  • the removable battery 116 may include an external casing 136 surrounding a battery cell or battery cells (not shown).
  • the external casing 136 may define a notch 140 configured to receive an extension 144 defined by the battery enclosure 104 of the electronic device 100 during insertion of the removable battery 116 in the electronic device.
  • the extension 144 may be configured to assist in limiting the maximum travel of the removable battery 116 in the lateral direction DI, the longitudinal direction D2, and/or the vertical direction D3.
  • this may be accomplished by faces 148 (e.g., end face, side faces, top and bottom faces) of the extension 144 being in contact with the notch 140 of the external casing 136 minimizing the maximum travel of the removable battery 116 in the lateral direction DI, the longitudinal direction D2, and/or the vertical direction D3. It is appreciated that the extension 144 and notch 140 may also assist in limiting travel of the removable battery 116 to constrain rotational motion (e.g., roll, yaw and pitch) of the removable battery 116.
  • faces 148 e.g., end face, side faces, top and bottom faces
  • the positive terminal connector 108 and the negative terminal connector 112 of the host device 100 may each be fixedly disposed within the battery enclosure 104.
  • the positive and negative terminal connectors 108, 112 may be electrically coupled to a printed circuit board 150 of the electronic device 100.
  • the positive terminal connector 108 may include one or more contacts 152 for interfacing with the removable battery 116.
  • the negative terminal connector 112 may include one or more contacts 156 for interfacing with the removable battery 116.
  • the removable battery 116 may include a positive terminal 160 and a negative terminal 164 coupled to a printed circuit board 166 of the removable battery 116.
  • the positive terminal 160 of the removable battery 116 may include one or more corresponding contacts 168 to engage the one or more contacts 152 of the positive terminal connector 108.
  • the negative terminal 164 of the removable battery 116 may include one or more corresponding contacts 172 to engage the one or more contacts 156 of the negative terminal connector 112.
  • each of the one or more contacts 152 of the positive terminal connector 108 within the battery enclosure 104 and the one or more corresponding contacts 168 of the positive terminal 160 of the removable battery 116 may be configured relative to each other to guarantee continuous contact therebetween irrespective of movement of the removable battery 116 in the lateral direction DI, the longitudinal direction D2, and the vertical direction D3 within the confines of the battery cavity 120 of the battery enclosure 104.
  • the removable battery 116 may be displaced during use of the host device 100 within the limits or confines of the battery cavity 120 to move in each of orthogonal directions DI, D2, and D3; however, irrespective of such movement, continuous contact between the one or more contacts 152 of the positive terminal connector 108 within the battery enclosure 104 and the one or more corresponding contacts 168 of the positive terminal 160 of the removable battery 116 is guaranteed.
  • each of the one or more contacts 156 of the negative terminal connector 112 within the battery enclosure 104 and the one or more corresponding contacts 172 of the negative terminal 164 of the removable battery 116 may be configured relative to each other to guarantee continuous contact therebetween irrespective of movement of the removable battery 116 in the lateral direction DI, the longitudinal direction D2, and the vertical direction D3 within the confines of the battery cavity 120 of the battery enclosure 104.
  • the removable battery 116 may be displaced during use of the host device 100 within the limits or confines of the battery cavity 120 to move in each of orthogonal directions DI, D2, and D3; however, irrespective of such movements, continuous contact between the one or more contacts 156 of the negative terminal connector 112 within the battery enclosure 104 and the one or more corresponding contacts 172 of the negative terminal 164 of the removable battery 116 is guaranteed.
  • Figure 4 is an exemplary perspective view of the positive terminal connector 108 and the negative terminal connector 112 of the battery enclosure 104.
  • Figure 6 is an exemplary top view of the positive terminal 160 and the negative terminal 164 of the removable battery 116.
  • Figure 7 is an exemplary perspective view of the positive terminal 160 and the negative terminal 164 of the removable battery 116.
  • the one or more contacts 152 of the positive terminal connector 108 may be blade contacts 176.
  • the one or more contacts 156 of the negative terminal connector 112 may be blade contacts 180.
  • the one or more corresponding contacts 168 of the positive terminal 160 of the removable battery 116 may comprise corresponding opposing spring-biased contacts 184 extending into a respective contact receiving channel 192 as shown in Figures 5 and 6.
  • the one or more corresponding contacts 172 of the negative terminal 164 of the removable battery 116 may comprise corresponding opposing spring-biased contacts 188 extending into a respective contact receiving channel 196.
  • the opposing spring-biased contacts 184, 188 may each be biased into the respective contact receiving channels 192, 196 by the use of coil springs, leaf springs or other biasing elements (not shown) within the positive and negative terminals 160, 164 of the removable battery 116.
  • FIG. 7 shows a top view of the blade contacts 176, 180 in contact with the corresponding opposing spring-biased contacts 184, 188 when the removable battery 116 is inserted in the battery enclosure 104 of the electronic device 100.
  • Each of the blade contacts 176 of the positive terminal connector 108 and the corresponding opposing spring-biased contacts 184 of the positive terminal 160 of the removal battery 116 may be configured relative to each other to guarantee continuous contact between each blade contact 176 of the positive terminal connector 108 and at least one of the corresponding opposing spring-biased contacts 184 of the positive terminal 160 of the removable battery 116 irrespective of movement of the removable battery 116 in the lateral direction DI, the longitudinal direction D2 and the vertical direction D3 within the confines of the battery cavity 120.
  • each of the blade contacts 180 of the negative terminal connector 112 and the corresponding opposing spring-biased contacts 188 of the negative terminal 164 of the removal battery 116 may be configured relative to each other to guarantee continuous contact between each blade contact 180 of the negative terminal connector 112 and at least one of the corresponding opposing spring-biased contacts 188 of the negative terminal 164 of the removable battery 116 irrespective of movement of the removable battery 116 in the lateral direction DI, the longitudinal direction D2 and the vertical direction D3 within the confines of the battery cavity 120.
  • the blade contacts 176, 180 may be present on the positive and negative battery terminals 160, 164 of the removable battery 116 and the corresponding opposing spring-biased contacts 184, 188 and the respective contact receiving channels 192, 196, may be included on the positive and negative terminal connectors 108, 112.
  • the mating between the blade contacts 176, 180 and the corresponding opposing spring-biased contacts 184, 188 will function similarly to the embodiment described above and below with the location of the blade contacts 176, 180 and the corresponding opposing spring- biased contacts 184, 188 being switched with one another.
  • the blade contacts 176 of the positive terminal connector 108 may be configured relative to the positive terminal 160 of the removable battery 116 and the maximum travel of the removable battery 116 in the longitudinal direction D2 to be of sufficient length to guarantee continuous contact between each blade contact 176 and at least one of the corresponding opposing spring-biased contacts 184 of the positive terminal 160 of the removable battery 116 at the maximum travel of the battery in the longitudinal direction D2.
  • the length of the blade contacts 176 in the longitudinal direction D2 may be greater than the total possible displacement of the removable battery 116 within the battery cavity 120 in the longitudinal direction D2.
  • the length of the blade contacts 176 in the longitudinal direction D2 may be such that the blade contacts 176 extend in each of opposite longitudinal directions from a nominal position a length greater than the possible displacement of the removable battery 116 within the battery cavity 120 in the longitudinal direction D2 to ensure that the opposing spring-biased contacts 184 remain positioned adjacent the blade contacts 176.
  • the blade contacts 176 of the positive terminal connector 108 may be configured relative to the positive terminal 160 of the removable battery 116 and the maximum travel of the removable battery 116 in the vertical direction D3 to be of sufficient height to guarantee continuous contact between each blade contact 176 and at least one of the corresponding opposing spring-biased contacts 184 of the positive terminal 160 of the removable battery 116 at the maximum travel of the battery in the vertical direction D3.
  • the height of the blade contacts 176 in the vertical direction D3 may be greater than the total possible displacement of the removable battery 116 in the vertical direction D3 within the battery cavity 120 in the vertical direction D3.
  • the height of the blade contacts 176 in the vertical direction D3 may be such that the blade contacts 176 extend in each of opposite vertical directions from a nominal position a height greater than the possible displacement of the removable battery 116 within the battery cavity 120 in the vertical direction D3 to ensure that the opposing spring-biased contacts 184 remain positioned adjacent the blade contacts 176.
  • the blade contacts 180 of the negative terminal connector 112 may be configured relative to the negative terminal 164 of the removable battery 116 and the maximum travel of the removable battery 116 in the longitudinal direction D2 to be of sufficient length to guarantee continuous contact between each blade contact 180 and at least one of the corresponding opposing spring-biased contacts 188 of the negative terminal 164 of the removable battery 116 at the maximum travel of the battery in the longitudinal direction D2.
  • the length of the blade contacts 180 in the longitudinal direction D2 may be greater than the total possible displacement of the removable battery 116 within the battery cavity 120 in the longitudinal direction D2.
  • the length of the blade contacts 180 in the longitudinal direction D2 may be such that the blade contacts 180 extend in each of opposite longitudinal directions from a nominal position a length greater than the possible displacement of the removable battery 116 within the battery cavity 120 in the longitudinal direction D2 to ensure that the opposing spring-biased contacts 188 remain positioned adjacent the blade contacts 180.
  • the blade contacts 180 of the negative terminal connector 112 may be configured relative to the negative terminal 164 of the removable battery 116 and the maximum travel of the removable battery 116 in the vertical direction D3 to be of sufficient height to guarantee continuous contact between each blade contact 180 and at least one of the corresponding opposing spring-biased contacts 188 of the negative terminal 164 of the removable battery 116 at the maximum travel of the battery in the vertical direction D3.
  • the height of the blade contacts 180 in the vertical direction D3 may be greater than the total possible displacement of the removable battery 116 in the vertical direction D3 within the battery cavity 120 in the vertical direction D3.
  • the height of the blade contacts 180 in the vertical direction D3 may be such that the blade contacts 180 extend in each of opposite vertical directions from a nominal position a height greater than the possible displacement of the removable battery 116 within the battery cavity 120 in the vertical direction D3 to ensure that the opposing spring-biased contacts 188 remain positioned adjacent the blade contacts 180.
  • the maximum travel distance of the removable battery 116 in the longitudinal direction D2 may be less than 1 mm, less than 0.8 mm, or less than 0.6 mm. In some embodiments, the maximum travel distance of the removable battery 116 in the longitudinal direction D2 may be between 1 mm and 0.6 mm, or between 0.9 and 0.7 mm. In some embodiments, the length of each blade contact 176, 180 may be at least 2.1 mm, at least 1.7 mm, or at least 1.3 mm. In some embodiments, the length of each blade contact 176, 180 may be between 2.1 mm and 1.3 mm, or between 1.9 mm and 1.5 mm.
  • the maximum travel distance of the removable battery 116 in the vertical direction D3 may be less than 0.3 mm, less than 0.2 mm, or less than 0.1 mm. In some embodiments, the maximum travel distance of the removable battery 116 in the vertical direction D3 may be between 0.3 mm and 0.1 mm, or between 0.25 mm and 0.15 mm. In some embodiments, the height of each blade contact 176, 180 may be at least 0.7 mm, at least 0.5 mm, or less than 0.3 mm. In some embodiments, the height of each blade contact 176, 180 may be between 0.7 mm and 0.3 mm, or between 0.6 mm and 0.4 mm.
  • each blade contact 176, 180 may change.
  • the contact point is a point where contact between each blade contact 176, 180 and the corresponding opposing spring-biased contacts 184, 188 occurs. Regardless of a change of position of the contact point, contact between each blade contact 176, 180 and corresponding opposing spring-biased contacts 184, 188 will be maintained allowing an unbroken circuit between the removable battery 116 and the electronic device 100.
  • each of the blade contacts 176, 180 may be in contact with only a first spring-biased contact of the corresponding opposing spring-biased contacts 184, 188 when the removable battery 116 is experiencing the maximum travel in the lateral direction DI.
  • the removable battery 116 is in a nominal or center position with respect to the lateral direction DI (z.e., a position between the maximum travel in the lateral direction DI between a first side 201 and a second side 202 of the battery cavity 120) both spring-biased contacts of the 184, 188 simultaneously maintain contact.
  • each blade contact 176, 180 may disengage one opposing spring-biased contact of the corresponding opposing spring-biased contacts 184, 188, while maintaining contact with the other opposing spring-biased contacts of the corresponding opposing spring-biased contacts 184, 188 to ensure continuous contact with at least one of the opposing spring-biased contacts 184, 188.
  • Each blade contact 176, 180 will thus maintain an electrical connection in the event of connection to both corresponding opposing spring-biased contacts 184, 188 or only one spring-biased contact of the corresponding opposing spring-biased contacts 184, 188.
  • the blade contacts 176 and the corresponding opposing spring-biased contacts 184, 188 are configured such that each blade contact 176, 180 is continuously in contact with at least one spring-biased contact 184, 188 regardless of a lateral position of the removable battery 116 within the confines of the battery cavity 120.
  • the maximum travel distance of the removable battery 116 in the lateral direction DI may be less than 1 mm, less than 0.9 mm, or less than 0.8 mm. In some embodiments, the maximum travel distance of the removable battery 116 in the lateral direction DI may be between 1 mm and 0.8 mm, or between 0.95 mm and 0.85 mm.
  • maximum travel of each opposing spring-biased contact 184, 188 may be at least 0.5 mm, at least 0.4 mm, or less than 0.3 mm. In some embodiments, the maximum travel of each opposing spring-biased contact 184, 188 may be between 0.5 mm and 0.3 mm, or between 0.45 mm and 0.35 mm.
  • each of the positive and negative terminal connectors 108, 112 may each include a plurality of blade contacts 176, 180. In some embodiments, each of the positive and negative terminal connectors 108, 112 may each include two, three or more of each of the blade contacts 176, 180. Similarly, each of the positive and negative terminals 160, 164 of the removable battery 116 may each include a plurality of corresponding opposing spring-biased contacts 184, 188 and a plurality of contact receiving channels 192, 196. In some embodiments, each of the positive and negative terminals 160, 164 of the removable battery 116 may each include two, three or more corresponding opposing spring-biased contacts 184, 188 and two, three or more contact receiving channels 192, 196.
  • each of the plurality of blade contacts 176 of the positive terminal connector 108 may be redundant with remaining blade contacts of the plurality of blade contacts 176.
  • each of the plurality of blade contacts 180 of each of the negative terminal connector 112 may be redundant with remaining blade contacts of the plurality of blade contacts 180.
  • each of the plurality of opposing spring-biased contacts 184 of the positive terminals 160 of the removable battery 116 may be redundant with remaining opposing spring-biased contacts of the plurality of opposing spring-biased contacts 184.
  • each of the plurality of opposing spring-biased contacts 188 of each of the negative terminals 164 of the removable battery 116 may be redundant with remaining opposing spring-biased contacts of the plurality of opposing spring-biased contacts 188.
  • the redundant contacts 176, 180, 184, 188 allow continued safe operation of the electrical device in the event of disconnection of less than all of the redundant blade contacts 176, 180 and redundant corresponding opposing spring-biased contacts 184, 188.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Computer Hardware Design (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention concerne un agencement de batterie à sécurité intrinsèque pour un dispositif électronique qui comprend une enceinte de batterie comprenant une cavité de batterie, des connecteurs de bornes positive et négative chacun de ceux-ci étant disposé à demeure à l'intérieur de l'enceinte de batterie et comprenant un ou plusieurs contacts, et une batterie amovible positionnée à l'intérieur de l'enceinte de batterie. La batterie amovible comprend des bornes positive et négative ayant chacune un ou plusieurs contacts correspondants pour venir en contact avec le ou les contacts des connecteurs de bornes positive et négative respectifs. Chacun du ou des contacts des connecteurs de bornes positive et négative à l'intérieur de l'enceinte de batterie et du ou des contacts correspondants des bornes positive et négative de la batterie sont conçus les uns par rapport aux autres pour garantir un contact continu entre eux indépendamment du mouvement de la batterie dans une direction latérale, une direction longitudinale et une direction verticale à l'intérieur d'une limite de la cavité de batterie de l'enceinte de batterie.
PCT/US2024/046381 2023-09-15 2024-09-12 Agencement de batterie à sécurité intrinsèque à courant élevé Pending WO2025059299A1 (fr)

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US202363583149P 2023-09-15 2023-09-15
US63/583,149 2023-09-15

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4431717A (en) * 1981-01-31 1984-02-14 Sony Corporation Battery case
US20010044281A1 (en) * 1998-06-15 2001-11-22 Paul E. Peterzell Portable phone with imbedded battery
US20120094540A1 (en) * 2010-10-15 2012-04-19 Kabushiki Kaisha Toshiba Electronic apparatus and battery connector
US20170047682A1 (en) * 2015-08-13 2017-02-16 Molex, Llc Uva battery connector
US20180287326A1 (en) * 2016-02-29 2018-10-04 SZ DJI Technology Co., Ltd. Electrical connector
US20200248896A1 (en) * 2019-02-01 2020-08-06 Milwaukee Electric Tool Corporation High visibility headlamp
US20220357023A1 (en) * 2019-11-14 2022-11-10 Illumagear, Inc. Light-emitting systems

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4431717A (en) * 1981-01-31 1984-02-14 Sony Corporation Battery case
US20010044281A1 (en) * 1998-06-15 2001-11-22 Paul E. Peterzell Portable phone with imbedded battery
US20120094540A1 (en) * 2010-10-15 2012-04-19 Kabushiki Kaisha Toshiba Electronic apparatus and battery connector
US20170047682A1 (en) * 2015-08-13 2017-02-16 Molex, Llc Uva battery connector
US20180287326A1 (en) * 2016-02-29 2018-10-04 SZ DJI Technology Co., Ltd. Electrical connector
US20200248896A1 (en) * 2019-02-01 2020-08-06 Milwaukee Electric Tool Corporation High visibility headlamp
US20220357023A1 (en) * 2019-11-14 2022-11-10 Illumagear, Inc. Light-emitting systems

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