JPH0619259U - Battery case structure and protective cover - Google Patents

Abstract

(57) [Abstract] [Purpose] The purpose is to write and read data in a memory element without impairing the reliability of an electronic circuit and without requiring a troublesome operation. [Structure] The structure of the battery case includes an outer case, a battery case, a board on which a circuit element is mounted, and a battery case of an electronic device having at least one memory element. A part of the battery case is a printed wiring board. The substrate is provided with a terminal, and the terminal is electrically coupled to the memory element. In addition, the protective cover is a protective cover that covers the terminals, etc.
Battery indications and terminal indications were displayed on the surface. Also,
Attached using a re-adhesive adhesive. Further, it was formed of a material having rigidity and fixed to a portion of the battery case other than the substrate.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a battery case of an electronic device having a storage element, and more particularly to the arrangement of terminals electrically connected to the storage element.

The present invention also relates to a protective cover that covers terminals and the like.

[0003]

[Prior art]

 2. Description of the Related Art In recent years, electronic devices have become smaller and have lower power consumption, and more and more devices can be driven by batteries and can be carried. Some of these electronic devices are memory elements (hereinafter referred to as RAM) that store information that is input at any time, and electrically rewritable readings that store data unique to each individual electronic device. There are also those equipped with a storage element for dashi (hereinafter simply referred to as a ROM). An example is a wireless individual selective call receiver (hereinafter simply referred to as a receiver). In the receiver, individual data such as an individual calling number peculiar to each device is written in the ROM, and the received message is stored in the RAM. When the user is changed or the contract content is changed, the ROM data needs to be rewritten. Further, as the recording capacity of RAM has increased, the use as an information terminal has increased, and the demand for printing out the information of RAM or incorporating it in a computer has increased. Terminals are required for rewriting ROM data and outputting RAM information. The terminals are often provided on the circuit board on which the storage element is mounted. The method of connecting the reading / writing device to this terminal is as follows. 1. A method of taking out the circuit board from the outer case. For example, the terminal is provided near the wall of the outer case or is attached to the outer case, and a hole for connection is opened in the outer case.

[0004]

[Problems to be solved by the device]

 However, the above 1. Such a method has problems that the operation is very complicated and cumbersome, and there is a great risk of impairing the reliability of the circuit board taken out from the outer case. Therefore, the methods for the end user to handle the data of the storage element are as follows. Method is inappropriate. The above 2. In such a method, since the terminals are exposed to the outside, static electricity easily enters and is applied to the memory element and other integrated circuits, which destroys the memory contents, malfunctions, and even the circuit itself. There is a problem that there is a great risk of being destroyed. As a method for solving these problems, 3. 3. A method to cover the connection hole provided in the outer case. As disclosed in JP-A-64-12474, a method of opening a window in a battery case has been proposed. However, the above 3. In such a method, there is a problem in that a new lid must be provided, which causes an increase in cost, and a problem in that space must be consumed. There is also a problem that the blocking effect is often insufficient. Above 4. In such a method, the end user can contact the circuit other than the storage element through the window, which may seriously impair the reliability of the circuit, but on the other hand, several terminals are required. However, it is difficult to make the connector small, and therefore it is difficult to make the window small, because the external connector must be brought into contact with a predetermined terminal with sufficient contact pressure. In addition, attaching the display label as in JP-A-64-12474 cannot be applied except when the use frequency is extremely low. Further, in order to position the connector and the terminal, it is necessary to perform positioning such as positioning of the outer case and terminal, positioning of the outer case and window, and positioning of the outer case fixing part and the connector with less error, which increases cost. There is also a problem that leads to. Furthermore, in order to achieve sufficient contact pressure, it is necessary to fix the outer case with sufficient force, and it is necessary to increase the rigidity between the outer case fixing part and the connector. There is also the problem that a large amount of rigidity is required in many parts, such as the rigidity that is necessary to press it strongly against the terminal facing the window.

Therefore, in the present invention, by devising the structure of the battery case and the protective cover for the terminals, the writing of the data of the memory element can be performed without impairing the reliability of the electronic circuit and without the need for a troublesome operation. It is intended for reading.

[0006]

[Means for Solving the Problems]

 The structure of the battery case according to the present invention includes an outer case, a removable battery lid that can cover an opening provided in the outer case, and a battery housing that can accommodate a battery in the outer case facing the opening. A battery case constituting the above space, a printed wiring board provided with a circuit element provided in a space other than the first space formed in the exterior case, and a battery of an electronic device having at least one memory element In the case, a part of the battery case is composed of a printed wiring board, a plurality of terminals are provided on the board, and at least one of the terminals is electrically coupled to the memory element. And

In addition, the protective cover according to the present invention is a protective cover for covering terminals and the like in a battery case, and the terminals are exposed by making holes in all or a part of the portion covering the terminals to expose the terminals on the surface. It is characterized in that the display of, and the display of terminals are displayed. It is also characterized in that it is attached using a re-adhesive adhesive.

In addition, the protective cover according to the present invention covers terminals and the like of a printed wiring board (hereinafter referred to as a board) portion of a battery case partially formed of the printed wiring board, and covers the terminals. Holes must be made in all or part of the part to expose the terminals, and the part must be formed of a material that has the same rigidity as the material other than the battery case board, such as plastic, and fixed to the battery case other than the board. Is characterized by.

[0009]

【Example】

 Hereinafter, details of the present invention will be described with reference to embodiments. 1 is a plan view of a first embodiment of the present invention, FIG. 2 is a sectional view of a portion indicated by AA in FIG. 1, and FIG. 3 is a portion indicated by BB in FIG. FIG. In the figure, 1 is an upper case, 2 is a lower case, 3 is a battery case frame, 4 is a printed wiring board (hereinafter simply referred to as a board), 41 is a terminal of a wiring pattern formed on the substrate 4, and 5 is A memory element is a ROM, 51 is another memory element, a RAM, 7 is a battery + terminal, and 8 is a coil spring-shaped negative terminal. Insert the end of the substrate 4 into the groove of the battery case frame 3 (not shown), insert the protrusion of the battery case frame 3 into the hole provided in the substrate 4 and then crimp (not shown) to separate the battery case frame 3 and the substrate 4 from each other. It is fixed to form the battery case 34. The space formed by the upper case 1 and the lower case 2 is divided into a space 12 and a space 11 which is a battery accommodating portion by a battery case 34 formed by the battery case frame 3 and the substrate 4. The space 11 is connected to the outside through an opening 21 and is a battery accommodating portion into which a battery can be taken in and out. The opening 21 can be closed with a battery lid (not shown), and the space 11 is shut off from the outside. A ROM 5, a RAM 51, and other elements are mounted on a portion of the substrate 4 arranged in the space 12, and a wiring pattern is formed to form an electronic circuit. The + terminal 7 and the-terminal 8 are soldered to the wiring patterns 44 and 43 formed on the substrate 4, respectively. When the battery is inserted into the battery case 34, the + terminal 7 and the-terminal 8 become the battery terminals. , Current flows. The + terminal 7 and the − terminal 8 are in contact with the battery case frame 3, and the contact pressure between the battery and the + terminal 7 and the − terminal 8 is supported by the battery case 34. A terminal 41 is formed on the inside of the battery case of the substrate 4, and a wiring pattern connected to the terminal 41 is guided to the space 12 on the substrate 4 and is electrically connected to the ROM 5 and the like. In the present embodiment, the number of terminals 41 is 11, but a larger number can be provided within the range of the battery case 34. Since the substrate 4 constitutes a part of the battery case 34, it is easy to make the position of the terminal 41 relative to the battery case 34 accurate.

FIG. 4 and FIG. 5 are sectional views of an essential part of a second embodiment according to the present invention, which is a sectional view of a portion similar to FIGS. 2 and 3 of the first embodiment. In the figure, 6 is a substrate, 31 is a battery case frame, 40 is a flexible printed wiring board (hereinafter simply referred to as a flexible board), and 42 is a terminal. The flexible substrate 40 is fixed to the battery case frame 31 by adhesion or the like to form the battery case 35. A space formed by the upper case 1 and the lower case 2 is divided by a battery case 35 into a space 12 and a space 11 which is a battery housing portion. The ends 47 and 48 of the flexible substrate 40 are bent into a substantially U shape along the wall of the battery case frame 31 in the space 11 and are attached to the battery case frame 31. The terminal 42 is formed on one end 47 of the U-shape, and the battery terminal 81 is arranged on the opposite end 48 by being soldered to the wiring pattern. When the battery is inserted into the battery case 35, the terminal 42 and the battery terminal 81 become battery terminals, and current flows. A terminal 41 is formed near the center of the flexible substrate 40, and the wiring pattern connected to the wiring pattern to which the terminals 41, 42 and the battery terminal 81 are soldered is guided to the space 12 on the flexible substrate 40, It is connected to the substrate 6 by the soldering portion 61 and has electrical continuity with the ROM 5 and the like. In the completed state, the flexible substrate 40 is backed up by the upper case 1 and is not deformed even if it is pushed during writing or reading operation.

FIG. 6 is a sectional view of an essential part of a third embodiment according to the present invention, which is a sectional view of a portion similar to FIG. 2 of the first embodiment. Reference numeral 32 is a battery case frame, and 45 is a substrate. The battery case frame 32 and the substrate 45 form a battery case 36. The substrate 45 constitutes a wall surface of the battery case 36 that does not face the opening 21. Battery terminals such as terminals and + terminals 71 can be provided in the same manner as in the first embodiment, and are soldered to the substrate 60 at the soldering portion 62 and electrically connected to the ROM 5 and the like. The configuration of this embodiment has an advantage that soldering with the substrate 45 can be easily performed regardless of the position of the substrate 60.

According to the above configuration, even though the terminal 41 is provided in the case, in order to read and write the ROM 5 and the RAM 51, the battery lid and the battery are removed, and the terminal 41 as shown in FIG. And the connector connected to the reading device and the writing device is brought into contact with the terminal 41. The connector is simply inserted into the battery case, and the work is extremely easy.

On the other hand, the terminal 41 is not exposed to the outside when the battery lid is in a normal use state, and is located away from the battery lid, so that the terminal 41 can be prevented from being damaged by static electricity from the outside. The terminal 41 can be surrounded by a wiring pattern such as a wiring pattern 43 such as a soldered negative terminal of the battery, but it will be surrounded by a ground close to the power source, so that static electricity may enter or electromagnetic noise may occur. Even if there is, the impact can be reduced. The space 12 is shielded from the space 11 by the battery case except for the influence via the wiring pattern, and the internal electronic circuit is not affected by the outside.

FIG. 7 is a plan view showing a state in which the protective cover 9 according to the fourth embodiment of the present invention is attached to the battery case 34 of the first embodiment. Reference numeral 91 is a hole formed in the protective cover 9, 92 and 93 are polar symbols of the battery, 94 is a display for explaining the terminals, and 95 is a display for indicating the type of battery to be used. The protective cover 9 is made of a non-conductor such as paper or a plastic film, and the polar symbols 92, 93 and the indications 94, 95 are printed on the protective cover 9. The holes 91 are opened only in the portions of the terminals 41 (four in this embodiment) used by the final user, and the terminals 41 (7 in this embodiment) used for writing individual information etc. Pieces) are covered. The end user can only use the uncovered terminals 41. The terminals 41 and the like covered with the protective cover 9 are isolated from the space 11 by the protective cover 9 being attached thereto, and are hardly affected by static electricity from the outside. Since the polarity symbols 92, 93 and indications 94, 95 of the battery can be displayed on the protective cover, it is not necessary to consider them on the board, and the entire surface can be effectively used for terminals 41, wiring patterns, solid ground, etc. You can

When the service company or the like uses the covered terminal 41 to rewrite the ROM 5 or the like, the protective cover 9 is removed before use. The protective cover 9 can be reused if the protective cover 9 is attached by using a re-adhesive adhesive that does not cure even if it is attached. Not only is the waste of parts eliminated, but there is no need to prepare a protective cover 9 for replacement, which leads to a reduction in costs such as rewriting. In particular, if each device has a unique number, it will be a great benefit to be able to reuse it. Since the protective cover 9 is only touched by the battery and the writing / reading connector and no peeling force is applied, the protective cover 9 is sufficiently adhesive.

It is possible to realize the protective cover 9 with almost no increase in cost even if the protective cover 9 is formed by making a hole 91 in a part by using a seal such as a battery display. .

FIG. 8 is a plan view of a protective cover of a fifth embodiment according to the present invention, and FIG. 9 is a sectional view of a battery case of the second embodiment with the protective cover of the fifth embodiment attached. It is a figure. In the figure, 96 is a protective cover, 97 is a protrusion integrated with the protective cover 96, 98 is a hole provided in the protective cover 96, and 99 is a groove provided near the protrusion 97. The indications 94 and 95 and the polar symbols 92 and 93 are formed integrally with the protective cover 96 in the shape of a protrusion or a groove. The protective cover 96 is deformed, and the protrusion 97 is inserted into the groove of the battery case frame 31 to be attached. Of the terminals 41 on the flexible substrate 40, the end user can use only the terminals 41 in the portions where the holes 98 are provided. The battery case 35 can be reinforced in strength, and the handleability before being incorporated in the upper case 1 is improved, and since the backup by the wall of the upper case 1 is unnecessary, the wall of the upper case 1 and the flexible board 40 are not separated. It becomes easy to arrange other members in between. Since the protective cover 96 is thicker than the protective cover 9 due to the use of a strong material, the terminals 41 in the holes 98 are less likely to be inadvertently contacted, and the protective function is improved. To remove the protective cover 96 from the battery case 35, the groove 99 may be twisted with a pin-shaped object to deform the protective cover 96 and the protrusion 97 may be removed from the groove of the battery case frame 31. If there is no problem in forming the hole 98 in the portion of the terminal 41 that is not used by the end user, for example, because the thickness of the protective cover 96 is sufficient for the protective function, the protective cover 96 is provided in the battery case frame 31. May be integrated with.

[0018]

[Effect of device]

 As described above, according to the present invention, since a part of the battery case is composed of the circuit board and the terminals that are electrically connected to the storage element are provided, writing and reading to and from the storage element can be performed simply by removing the battery lid. There is an effect that it is possible and the work is extremely easy. In addition, the terminals are isolated from the outside, and this has the effect of preventing damage to the memory element due to static electricity. Further, the space for housing the electronic circuit is isolated from the space for housing the battery, and the electronic circuit is not externally contacted during normal use. It is possible to eliminate the influence of such as, it has an effect of improving the reliability of the electronic circuit unit. Furthermore, since the substrate provided with the terminals is a part of the battery case, there is an effect that the positions of the terminals can be accurately determined. Furthermore, the range in which the terminals can be arranged is inside the battery case, and is wider than when holes are formed, and there is also an effect that many terminals can be provided. At that time, the connector is also large and has the effect of being durable.

In addition, since the protective cover in which all or part of the portion covering the terminal is perforated, only the portion of the terminal used by the final user can be selectively perforated, so that the final user can This has the effect of making it impossible to touch the terminals other than the above and lessening the influence on the circuits connected to the terminals by mistake. Furthermore, there is an effect that the terminal can be covered and protected in a state where it can be used.

Further, by displaying a battery display, a terminal display, etc. on the surface of the protective cover, there is an effect that the substrate surface to be protected can be effectively used for a wiring pattern or the like without considering the display. is there. In addition, it can also serve as a battery display sticker, which has the effect of providing a protective cover without increasing costs.

Further, since the protective cover is attached using the re-adhesive adhesive, there is an effect that the protective cover can be reused. Since it can be reused, it is also unnecessary to prepare a protective cover for replacement.

Further, since the protective cover is made of a rigid material such as plastic, there is an effect that the battery case can be reinforced at the same time as the protection of the substrate portion.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention.

FIG. 2 is a sectional view showing an essential part of a first embodiment of the present invention.

FIG. 3 is a sectional view of a portion indicated by BB in FIG. 1, showing a first embodiment of the present invention.

FIG. 4 is a sectional view showing an essential part of a second embodiment of the present invention.

FIG. 5 is a sectional view showing an essential part of a second embodiment of the present invention.

FIG. 6 is a sectional view showing an essential part of a third embodiment of the present invention.

FIG. 7 is a plan view showing a fourth embodiment of the present invention.

FIG. 8 is a plan view showing a fifth embodiment of the present invention.

FIG. 9 is a sectional view of an essential part showing a mounted state of a fifth embodiment of the present invention.

[Explanation of symbols]

 1 ... Top case 2 ... Bottom case 3, 31, 32 ... Battery case frame 34, 35, 36 ... Battery case 4, 6, 45 ... Printed wiring Substrate 40 ... ・ Flexible circuit board 41, 42 ・ ・ ・ Terminal 43, 44 ・ ・ ・ ・ Wiring pattern 5 ・ ・ ・ ROM 51 ・ ・ ・ ・ RAM 7 ・ ・ ・ + terminal 8 ...- Terminals 9, 96 ... Protective covers 91, 98 ... Holes 92, 93 ... Polarity symbols 94, 95 ... Indication 97 ... Protrusion 99 ... Groove

Claims (4)

[Scope of utility model registration request] 1. An exterior case, a removable battery lid that can cover an opening provided in the exterior case, and a first space in the exterior case that can accommodate a battery facing the opening. In a battery case of an electronic device having a battery case, a printed wiring board having a circuit element mounted in a space other than the first space formed in the exterior case, and at least one storage element, A battery case structure characterized in that a part of the battery case is composed of a printed wiring board, a plurality of terminals are provided on the printed wiring board, and at least one of the terminals is electrically coupled to the storage element. And protective cover. 2. A protective cover for covering a terminal or the like according to claim 1, wherein a hole is made in all or part of the portion covering the terminal to expose the terminal, and a battery display, a terminal display, etc. are provided on the surface. Battery case and protective cover for terminals, etc. 3. The battery case and the protective cover according to claim 2, wherein the battery case and the protective cover are attached by using a re-adhesive adhesive. 4. The protective cover for covering the terminal according to claim 1, wherein the terminal is exposed by making a hole in all or a part of the portion covering the terminal, and the cover of the battery case according to claim 1. A battery case and a protective cover, which are made of a material having a rigidity similar to that of a material other than the substrate and are fixed to a portion of the battery case other than the printed wiring board.