TW451516B - Multi-use lead-acid power pack for use with a cordless power hand tool and other loads - Google Patents

Abstract

A multiple-use battery pack system includes a battery pack housing enclosing a lead-acid battery and a post portion projecting from the housing and adapted to be plugged into a cavity in an associated cordless power hand tool. First terminals on the post portion connect the battery to the tool circuitry when the post portion is plugged into the tool. When used for powering other loads, the post portion is plugged into a receptacle in an adapter housing, in which position either the first terminals or, alternatively, second terminals on the battery pack housing connect the battery to jumper cables on the adapter housing. Latch mechanisms on the battery pack housing cooperate with keepers on the associated hand tool for latching the battery pack in place thereon.

Description

451516 V. Description of Invention (1) ^ Relevant Application Cases _ This application claims that the application filed on June 16, 1999 is currently the pending application for the US Patent Provisional Application No. 60 / 139,51 No. 4: Priority said. Background This application relates to a rechargeable battery or power pack * and in particular to a lead-acid power pack. General power packs, that is, densely packed one or more batteries, are used in many different DC power transmission applications. These power packs are typically used to provide power to wireless power tools. The latest power packs can also be used in jumper-connected cars. The power packs described below are generally lead-acid batteries. These lead batteries are, for example, "Inspira" batteries sold by Johnson Controls Inc. And designed by Bolder Techno logies " Bolder 9/5

"Sub-C TMF" (thin metal film) "The power pack used in wireless power tools is generally a NiCad battery." In some environments, lead-acid batteries have advantages over wireless hand tools. Applicable to wireless power tools. | In summary! This application discloses an improved rechargeable power pack configuration 'which can avoid the disadvantages of the conventional power pack, and has the advantages of structure and operation. An important feature is The rechargeable battery pack can be used in different ways (). Includes the provision of wireless hand tools and automotive engines. Another feature related to the aforementioned features is that the battery pack is directly plugged into a wireless power hand tool. It can be plugged into a jumper housing at the same time. Another feature of the present invention is to provide a battery pack that can be directly installed in

〇Λ64 \ 6 «30, ρκΐ Page 5 4 5 15 16 V. Description of the invention (2) Wire-powered hand tools without the trouble of connecting the battery with jumper wires" — $ style description is for the purpose of explaining the object of protection. It is only illustrated by the illustrated embodiment, and it is difficult to cooperate with the subsequent description to target the structure and operation, and many other advantages can still be understood through the description. Figure 1 is a partial side sectional circle of a wireless power hand tool with a battery pack; Figure 2 is a top view of the battery pack shown in Figure 1; Figure 3 is a front view of the battery pack shown in Figure 2; Partial side sectional view of a 1 to 3 battery pack connected to a jumper converter housing; Figure 5 is a vertical portion of the converter shown in Figure 4 and equipped with a jumper clip; Figure 6 is shown in Figure 4 A cross-sectional view of the vertical portion of the battery pack and the converter housing; and 圏 7 is a circuit diagram of the electronic components of the battery pack system of FIGS. 1 and 6. Detailed description

Please refer to Figs. 1 to 7 for a wireless power tool. Generally, the battery pack disclosed herein is marked with the reference number 10. For the purpose of illustration, the power tool 10 is a conventional "plunger grab" type, which has a longitudinally extending pipe body 11, which is usually sleeved on a DC motor 18 and connected to a movable mechanism to One output driver U. In the tool 10 of the embodiment, the characteristic of the output member 12 in combination with a wrench is a square screwdriver. However, for those skilled in the art, the output member can still be other types of tools, including different types of money heads, drives Pieces and so on. Integrated with the tube body 11 and extended a long grip 13 which

Page 6 4 5 ΐ 5 1 6 5 'Explanation of the invention (3) is also provided with an operating trigger 14 for actuating a control switch 14a. The grip 13 has a distal end surface 15 in which a recess 16 having terminals 17 is formed, and a battery pack connected thereto is received in a conventional manner. 〇 Please refer to Figures 2 and 3 for a battery pack labeled 20. The battery pack 20 is similar to the standard battery pack and is used for power tools 1 〇, such as the model sold by Snap-on Tool & Tools Co. CTB100 and CTB212, which are disclosed by US Patent No. 5, 213, 913, and are incorporated herein by reference. The battery pack 20 contains a battery B (shown in Figure 7), which may include a thin metal film of lead Acid battery, which can be designed by Johnson Controls " Insp iraM, or Bolder Technologies model 11 Bolder 9/5 sub-C TMF ".

G The battery pack 20 has a casing 21 that covers the battery B and has a substantially flat upper surface 22 »The casing 21 has a protruding front wall 23 that extends above the surface 22, and It has a pair of wings 24 that extend rearwardly to about the length of the front and rear half of the casing 21. A connecting tower-shaped portion 25 protruding from the surface 22 and adjacent to the rear end of the surface is substantially elliptical in the transverse direction, and is designed to match the battery pack conventionally applied to the power tool 10. The upper end of the tower-shaped portion 25 is an electric terminal 26 for connecting to the butt terminal 17 at the upper end of the battery pack, and is electrically connected to the battery pack 20 and the power tool 10. The battery pack 20 has a second group of male terminals 27 and protrudes from the surface 22 to abut the front end. The terminal does not extend above the wing portion 24 and the front wall 23. For example, the battery pack 20 is provided with a pair of fasteners. 28 The strainer is capable of engaging a fastener holder (not shown) on the grip 13 of the tool.

1HH Page 7 451516 The description of the 5 'invention (4), and the activation by the buckle 29 respectively, as described in the aforementioned national patent No. 5, 213, 913, in a releasable manner Connect the battery pack 20 to the tool grip 13. When the battery pack 20 is installed in the grip 13 as shown in FIG. 1, the shape and size of the top surface 22 of the battery pack housing 21 are designed to be received in the terminals 27 of the battery recess 16, The top surface 15 of the power tool grip 13 is mated with and received. However, as it is well known, when the battery pack 20 is attached to the power tool 10, the terminal 27 is not used and is electrically connected to the power tool 10 ', but as a conventional person simply passes the The towers 25 are connected. Referring to Figs. 4-6, a jumper converter housing 30 will be described, which is used to connect to the battery pack when jumped to the car. The jumper-like body 30 can be of different shapes or sizes, but is designed to fit the surface 22 of the battery pack 20 »The casing 30 has a tower-shaped interface 31 for receiving the tower-shaped portion 25 of the battery pack At the same time, a pair of female terminals 32 are provided for docking with the male terminals 27 of the battery pack 20 to form electrical connections (see FIGS. 6 and 7). The female terminals 32 are respectively connected to an electric gauge 33, which are extended to the outside through the opening on the casing 30, and are connected to a stress relief device 34. At the other end of the cable 33, they are respectively connected to a fastener 35, which is a terminal connected to a car battery by conventional techniques. The housing 31 may have one end buckle 36 on the other side of the tower interface 31. When the converter housing 30 is not used, the fasteners 35 can be placed therein, as shown in FIG. 5. As is known, the battery compartment in the battery pack 20 is rechargeable. When the battery pack is used in conjunction with the jumper converter case 30, it can be used in the fastest way after the car is started. The battery pack 20 is charged. Charging system

Page S 451516 V. Description of the invention (5) It takes about several minutes, depending on the size of the battery. When the battery pack 20 is used in the wireless power tool, it can be charged by a conventional battery charger. These chargers are operated with a standard 120VAC power supply and can be charged by the socket on the battery pack tower 25. Charging is completed in about an hour. In addition, different current devices can be applied to the battery pack. For charging, the battery pack 20 has a charging port 38 (such as 圏 1 and 7). However, the battery pack 20 in the description of the embodiment has two 鈒 terminals 26 and 27, which are connected to a wireless power tool, respectively. Or the converter housing 30 can be opened, and it can also have other different groups of terminals. If only the tower portion 25 is used, the jumper converter housing 30 can be adjusted with a set of terminals such as those used to connect the terminals of the tower portion 25 in the wireless power tool 10. In addition, if only the terminal 27 is used, the power tool can be adjusted to have a set of terminals connected to the terminal 27. The above text descriptions and diagrams are used to illustrate rather than limit the present invention, such as the embodiments shown above, Any changes or improvements made by those skilled in the art can be made without departing from the scope of the present application. The actual scope of protection is defined in the scope of subsequent patent applications.

0 ^ 4% 4830.pti Page 9

Claims (1)

451516 6. Scope of patent application 1. A battery pack for a wireless power hand tool or other load, including: a casing; at least one battery is placed in the casing; a tower is formed from the casing Protrudes and has a first battery pack terminal, and is electrically connected to the at least one battery; the tower-shaped portion should be received in a device position in a pocket of a hand tool, and the hand tool can carry the battery pack movably, and The first terminal is electrically connected to a terminal in the hand tool; and the second battery pack terminal is provided in the casing t, is electrically connected to the at least one battery, and is allergic to a load other than the hand tool. 2. The battery pack according to item 1 of the patent application scope, wherein the terminals of the second battery pack are spaced from the tower portion. 3_ If the battery pack of the first scope of the patent application, the terminals of the first and second battery packs are male terminals. 4. If the battery pack of item 1 of the patent application scope further includes a fastener mechanism on the shell, the battery pack is held by the hand tool. 5. For the battery pack according to item 4 of the patent application, wherein the fastener mechanism includes a fastener, the actuator protruding from the casing is connected to the fastener for manual actuation operation. 6. The battery pack according to item 1 of the patent application scope, further comprising a charging port electrically connected to at least one battery in the shell system. 7. The battery pack according to item 1 of the patent application scope, wherein the at least one battery is a lead-acid battery. 451516 Six's patents covering battery packs for wireless power hand tools or other loads, including: Sections ~ Diodes-A battery case is difficult; at least one battery is placed in the battery case; a connection The part protrudes from the battery pack housing and has an electric and electrical connection to the at least one battery: a dagger terminal; the connecting part is a device position which should be received in a pocket of a hand tool; To carry the f pool bag, 1 is the terminal connected to the hand tool; and a converter housing is provided with a slot for receiving the connection part of the battery pack housing, and has a connector system for allergies Electrically connected to a load; and 'the connection device outside the converter case is electrically connected to the connector, and when the connection portion of the battery pack housing is housed in the slot' should be powered Connected to the battery pack terminal. 9. The battery pack system according to item δ of the patent application scope, wherein the connection portion is a tower-shaped portion protruding from the battery pack-like body. 10. The battery pack system as claimed in claim 9 wherein the battery pack terminals are on the tower. Π _ If the battery pack system of item 8 of the patent application scope, wherein the connector includes a cable extending from the converter housing, and each has a connector fastener at its distal end ° 1 2 · As of patent application scope No. 11 Item of the battery pack system, the converter housing is provided with a bag opening for receiving unused fasteners respectively. Page 11 451516 VI. Patent application 13: The battery pack system terminal of item 8 of the patent application scope includes the first end for connecting Qiu injury π & ^ battery pack _ ^ ^ Electrically connect the terminals in the hand tool when in the pocket of the hand tool. The connecting device is connected when the part is stored in the slot. Step by step 1 4. The battery pack system according to item 8 of the patent application scope, in which the neodymium battery is a lead-acid battery. , W to 乂 15. — A system for a wireless power hand tool or other load, including: 0 er a battery pack housing; At least one battery is placed in the battery pack housing; a battery pack terminal, and a tower-shaped portion protrudes from the housing and has a first electrical connection to the at least one battery; the tower-shaped portion should be stored in one hand Position of the device in the pocket of the tool 'The hand tool is movably carrying the battery pack and is electrically connected to the terminal in the hand tool with a first terminal; and the second battery pack terminal is provided in the housing' Is electrically connected to the at least one battery; and, the μ-converter housing is provided with a slot for receiving the connection part of the battery case, and has a connector system for electrically connecting it to a hand tool. And a connecting device provided on the converter case is electrically connected to the connector, and when the tower portion of the battery pack housing is housed in the slot, it becomes electrically connected to the first Two battery pack terminals. 16. The battery pack system according to item 15 of the application, wherein the second Page 12 451516 VI. Scope of patent application The battery pack terminals are spaced from the tower. 1 7. If the battery pack system of item 16 of the patent application scope, the terminals of the second battery pack are all male terminals, and the connection device includes a socket. When the tower is placed in the slot, respectively The second battery pack terminal is stored in an allergy. 18. The battery pack system according to item 17 of the patent application scope, wherein the connector includes a cable extending from the converter housing, and each has a connector fastener and a distal end thereof. 19. The battery pack system according to item 18 of the scope of patent application, wherein the converter case defines a bag opening that should be used to accommodate unused fasteners. 〇 2 0. The battery pack system according to item 15 of the scope of patent application, further comprising a fastener mechanism on the battery pack case for holding the battery pack case to the hand tool. Page 13