JPS638055Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a small electric device containing a battery, such as a desktop computer that can be carried around in a pocket, and particularly relates to the mounting structure of the battery.

BACKGROUND ART Conventionally, in this type of small electrical equipment, there has been a case where the battery is housed in a battery case and placed inside the main body of the electrical equipment in order to house and replace the battery. Conventionally, the battery case was fixed to the main body by screws, and the battery case was removed by removing the screws. Therefore, removing and installing the battery case is complicated, and even if you have a spare battery outside, you cannot replace the battery unless you have a small screwdriver to remove the screws that secure the battery case.

The object of this invention is to provide a small electric device containing a battery whose battery case can be easily removed and installed.

Hereinafter, an example in which the small electric device according to this invention is applied to a lighter with a built-in calculator will be explained with reference to the drawings. First, I will explain the overall structure of a lighter with a built-in calculator. As shown in FIG. 1, the main body 11 has a relatively thin rectangular shape, and one side of the main body 11 is used for inputting various numerical values or various functions such as addition and division. A keyboard 12 is provided on which keys are arranged, and furthermore, a display section 13 is arranged on this surface for displaying input numerical values and calculation results. A power switch 14 is also provided, and the main body 1 is arranged so that it can cover the keyboard 12, the display section 13, and the surface on the switch 14 side, that is, the operation surface of the main body 11, if necessary.
1 is attached with a cover 15 that can be inserted and removed along that surface.

As shown in FIG. 2, one end of the main body 11 in the longitudinal direction and a corner of the lighter serve as an ignition operating section 16, and a decorative plate 16a is attached to the outer surface thereof. This operation section 16 is the cover 1 in this example.
The lighter is provided at the end opposite to the direction in which the lighter is removed, and the lighter is ignited by pushing the cover 15 in the direction in which the lighter is removed. In other words, an ignition chamber 17 is formed in the main body by arranging the operation part 16 of the lighter and the end of the main body 11, and the gas ejected from the nozzle 21 in the ignition chamber 17 is ignited, and the ignition chamber 17 is formed on the upper surface of the ignition chamber 17. A flame 19 can be generated externally through a flame hole 18. The ignition chamber 17 is provided with a nozzle 21 through which fuel gas is ejected, and an air hole 22 for introducing air from the outside is formed on the side surface of the ignition chamber 17.

The main body 11 has its cover 15 as shown in FIG.
A block part 24 for storing and holding a lighter fuel cylinder, a calculating part of a calculator, etc., is slidably attached to a side plate 23 forming the opposite surface. One end of the side plate 23 is configured in a frame shape, and that part serves as the ignition chamber 1 of the lighter mentioned earlier.
7 is formed, and a portion of the frame-shaped portion is cut off at the portion where the ignition operation portion 16 is located. The end portions of the block portions 24 are inserted into this frame-shaped portion and secured to each other by screws 25.

The keyboard 12 is attached to one side of the block portion 24, and a panel plate 27 is attached on top of the keyboard 12, and a small hole 2 made in the panel plate is attached.
Each key 29 protrudes to the outside through 8, and the display section 13 faces the outside through a window 31 of the panel board 27. A groove 32 for fitting with the side plate 23 and a groove 33 for fitting with the cover 15 are formed on the side surfaces of the block part 24, respectively, and these side plates 23 and the cover 15 can be attached to each other by sliding in the longitudinal direction of the block part 24. I can do it.

As shown in FIG. 4, a fuel tank 37 containing fuel, such as liquefied gas, is accommodated in the tank accommodating portion 36 of the block portion 24. A gas injection and flame adjustment section 38 is attached to one end surface of the tank 37, for example, the surface opposite to the ignition chamber 17. The end portion faces the outside through a hole formed in the block portion 24. The lighter operation unit 16 side of the tank housing unit 36 is the high pressure housing unit 3
9, and the high pressure generation section 41 is accommodated in the high pressure accommodation section 39. The high pressure generation section 41 is the lighter operation section 16
The end portion 42 thereof is operated and moved by the operating portion 16 to generate high pressure. At the same time, the lever 43 provided on the operation section 16 engages with the valve operation piece 45 of the valve section 44 protruding from the side opposite to the injection adjustment section 38 of the fuel tank 37, and the lighter ignition operation section 16 is pushed. Then, the valve operation piece 45 is pulled up, and the gas in the tank 39 is allowed to exit to the nozzle 48 through the valve part 44.

A nozzle attachment part 47 is provided on the bottom of the ignition chamber 17, a nozzle 48 is fixed to the nozzle attachment part 47, the lower end of the nozzle is connected to the valve part 44 through a pipe 49, and when the valve of the valve part 44 is opened, Gas in the tank 37 is ejected from the nozzle 48. Further, an ignition coil 51 is attached to the tip of the nozzle 48, and a high voltage terminal 53 is attached close to the coil 51 on the wall surface of the nozzle attachment portion 47 that constitutes one side wall of the ignition chamber 17. High voltage terminal 53
A high voltage generated by the high voltage generator 41 is applied to the terminal 53 through the high voltage cable 52, and a spark is generated between the terminal 53 and the coil 51 to ignite the gas. Further, within the block section 24, a housing section 55 for the main parts of the calculator is provided, and within this housing section, calculations and driving sections necessary for the calculator are accommodated. A ground plate 57 is provided and fixed to the high voltage generating section 41 to protect these calculating sections from generated sparks. The nozzle mounting part 41 is made of heat-resistant synthetic resin material, the block part 24 is made of an inexpensive molded resin material, and the side plate 23 and cover 1
5 is composed of an aluminum plate. A battery case accommodating section 58 is provided in the block section 24, and a battery case 59 is accommodated in this accommodating section 58. As shown in FIG. 3, the battery case 59 includes batteries 61,
62 are housed in an array. This battery case 59 can be removed from and attached to the main body 11. Batteries 61 and 62 are in contact with terminals 73 and 74, and operating power is supplied to the calculator by batteries 61 and 62. The battery case 59 is configured as a molded product, for example, and the batteries 61,
Accommodating recesses 63 and 64 that correspond to and have substantially the same shape as 62, circular in this example, are formed, and a recess that communicates with these recesses 63 and 64 is formed.

In this device, as shown in Figures 3 and 6, a spring 65 is housed in the battery case 59 and biases the housed batteries 61, 62 in the direction of ejection. The spring 65 is made of a rectangular metal plate of spring material, and its center portion protrudes as engagement pieces 66, 67 for preventing deviation. The engagement pieces 66, 67 engage the battery case 59.
The spring 65 is inserted into and engaged with grooves 68, 69 formed between the storage recesses 63, 64 of the battery 9. In order to bias the battery outward, the engagement pieces 66, 67 are bent in the same direction to form an overall triangle with a large angle. The spring 65 also functions to electrically connect the batteries 61, 62, and contact protrusions 71 are formed on each end to improve contact with the batteries 61, 62. The fixed terminals 73, 74 are
62 is pressed against the contact by a spring 65.

A recess 75 is formed at an end near the outside of the surface of the battery case accommodating portion 58 facing the terminals 73 and 74 (the inner surface of the side plate 23 in this example), and a protrusion 76 is integrally formed on the battery case 59 facing the recess 75. is formed. When the battery case 59 is inserted into the battery case accommodating portion 58, the spring 65 connects the battery to the terminals 73, 7.
Since the battery case 59 is pushed toward the side plate 23 at the same time as the battery case 59 is pushed toward the side plate 4, the protrusion 76 engages within the recess 75 to prevent the battery case 59 from slipping out. The drawer piece 78 moves the battery case 59 toward the fixed terminals 73 and 74, removes the engagement protrusion 76 from the recess 75, and pulls out the case 59 from the main body.
is formed. For example, the outer end surface 7 of the battery case 59
A drawer piece 78 is integrally formed at a distance from 7, and the outer surface of the drawer piece 78 is substantially flush with the end surface of the main body 11 on the battery case insertion/removal side. Spacings 79 and 81 are provided between the inner circumferential surfaces of the inner circumferential surfaces. Therefore, when the pull-out piece 78 is pulled with a nail or a screwdriver at the interval 81 and the pull-out piece 78 is pushed toward the fixed terminal 73, the protrusion 76 comes off from the recess 75 and the battery case 59 can be pulled out.

As described above, in the electrical device according to this invention, when the battery case 59 is inserted into the case accommodating portion 58 of the main body, the battery 6
1 and 62 are elastically pressed against the fixed contacts 73 and 74, and the reaction force causes the case 59 to press against the fixed terminals 7
3, pushed to the opposite side of 74, that is, to the side plate 23 side,
Therefore, the protrusion 76 engages with the recess 75, and the battery case 59 is fixed within the main body 11 and cannot be removed. That is, when attaching the battery case to the main body, the case 59 is automatically fixed to the main body 11 by inserting the case 59 without using screws or the like. Moreover, the spring 65 for this purpose brings the battery into elastic pressure contact with the fixed terminal for a good electrical connection, and also serves to connect the batteries 61 and 62 to each other in this example. To remove this battery case 59, move the drawer piece 78 at the outer end toward the fixed terminal 73 against the biasing force of the spring 65, and the protrusion 76 will come off from the recess 75, allowing the case 59 to be removed to the outside. It can be pulled out. Incidentally, the engagement between the battery case and the main body may be achieved by forming a recess on the battery case side and forming a protrusion within the accommodating portion of the main body. Also, the number of batteries accommodated is 2.
The number is not limited to 1, but may be 1, or 3 or more. The collar 97 attached to the nozzle 48 is the ignition chamber 17
It is used to adjust the amount of air flowing inside, and its tsuba 97
A good mixing ratio of gas and air can be achieved along the nozzle 48.

[Brief explanation of drawings]

Figure 1 is a plan view with the cover removed, showing an example of a calculator-accommodating lighter to which this invention is applied;
The figure is a perspective view, Figure 3 is an exploded perspective view of Figure 1,
Fig. 4 is an exploded perspective view showing a part of Fig. 3 from the back side, Fig. 5 is a perspective view showing the spring 65, and Fig. 6 is a main part of this invention in which the battery housing case is housed in the main body. FIG. 11...Main body, 58...Battery case housing section, 5
9... Battery case, 61, 62... Battery, 63,
64...Battery housing recess, 65...Spring, 73,7
4...Fixed terminal, 78...Drawer piece, 75...
Engagement recess, 76... engagement protrusion.

Claims (1)

[Claims for Utility Model Registration] A battery case 59 having a pair of accommodation recesses 63, 64 on the upper surface and a communication recess that communicates them; Leaf spring 6 with slightly bent outward
5, and the housing recess 63 in contact with the top of the leaf spring 65,
A main body 11 having a battery case accommodating portion in which the battery case is housed from one end thereof, and a main body 11 having a battery case accommodating portion attached to the wall of the battery case accommodating portion of the main body 11, Terminals 73 and 74 are elastically pressed together by the spring 65, and uneven engagement means 75 are formed on the bottom surface of the battery case and the wall surface of the battery case accommodating portion opposite thereto, and engage in uneven engagement with each other. , 76, and a pull-out piece 78 that is integrally provided on the outer end of the battery case and that allows the case to be moved toward the terminal and pulled out by disengaging the concave-convex engaging means. A small electrical device containing a battery made of