JPH07288117A - Battery case structure and protecting cover - Google Patents

Abstract

PURPOSE:To easily write in and read from a storage element and separate a terminal from the outside to protect the storage element for enhancing reliability by constituting part of a battery case of an electronic appliance having the storage element with a circuit board and installing the terminal electrically connected to the storage element. CONSTITUTION:Elements such as ROM 5 and RAM 51 are mounted in a space 12 of a circuit board 4 to constitute an electronic circuit, and electrically connected to a wiring pattern through a terminal 41. Current is supplied from a battery housed in a battery compartment 11 to the electronic circuit through terminals 7, 8. When the ROM, RAM are used in reading and writing, a battery cover and the battery are removed to expose the terminal 41, and connectors of the reading and writing device are brought into contact, and in normal use, the terminal 41 is not exposed on the outside to prevent the breakage of the element caused by static electricity. Write in and read out from the storage element are made easy and the element is prevented from breakage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention 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 for covering terminals and the like.

[0003]

2. Description of the Related Art In recent years, electronic devices have been reduced in size and reduced in power, and more and more electronic devices can be driven by batteries and can be carried.
Among these electronic devices, a storage element (hereinafter referred to as a RAM) that stores information that is input at any time, and an electrically rewritable read-out memory that stores data unique to each individual electronic device Element (hereinafter, simply ROM
There is also a thing with. 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 call number peculiar to each individual 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 the RAM has increased, the use as an information terminal has increased, and the demand for printing out the information of the RAM or incorporating it in a computer has increased. A terminal is required for rewriting the data in the ROM and outputting the information in the RAM. The terminals are often provided on the circuit board on which the storage element is mounted. The method of connecting to the reading / writing device to this terminal is as follows. How to take out the circuit board from the outer case,
2. There is a method in which a terminal is provided near a wall of an outer case or attached to the outer case, and a hole for connection is opened in the outer case.

[0004]

However, the above 1. Such a method has a problem that the operation is very complicated and cumbersome, and there is a large risk of impairing the reliability of the circuit board taken out from the outer case. Therefore, the following methods are available for the end user to handle the data in the storage element. 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, and the stored contents are destroyed or malfunctions. There is a problem that the risk of destruction is great. As a method for solving these problems, 3. 3. A method of covering a connection hole provided in the outer case with a lid. As disclosed in JP-A-64-12474, a method of opening a window in a battery case has been proposed. But,
The above 3. In such a method, there is a problem in that a new lid must be provided, which leads to an increase in cost, and a problem 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 circuits other than the storage element through the window, which may 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. Moreover, JP-A-64-124
Affixing a display label such as 74 cannot be applied except when the frequency of use is extremely low. Further, in order to position the connector and the terminal, the positioning of the outer case and the terminal, the positioning of the outer case and the window, the positioning of the outer case fixing part and the connector, and the like must be performed with a small error, which increases the cost. There is also a problem that leads to. Furthermore, in order to realize a sufficient contact pressure, it is necessary to fix the outer case with a sufficient force, and it is necessary to increase the rigidity between the outer case fixing portion and the connector. There is also a problem in that a large amount of rigidity is required in many parts, such as a rigidity sufficient to press the terminal facing the window strongly.

Therefore, in the present invention, by devising the structure of the battery case and the protective cover for the terminals, the writing and reading of the data of the storage element are carried out without impairing the reliability of the electronic circuit and requiring no troublesome operation. The purpose is to play soup stock.

[0006]

The structure of a battery case according to the present invention comprises an outer case, a battery lid that can cover an opening provided in the outer case and is removable, and the opening in the outer case. A battery case forming a first space capable of accommodating a battery, a printed wiring board provided with a circuit element provided in a space other than the first space formed in the exterior case, and at least one In a battery case of an electronic device having a storage element, a part of the battery case is formed 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 storage element. It is characterized by doing.

Further, the protective cover according to the present invention is a protective cover for covering terminals and the like in the 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 and the display of terminals are displayed. Further, it is characterized in that it is attached using a re-adhesive adhesive.

Further, 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, a part of which is formed of a printed wiring board. Holes are made in all or part of the terminal to expose the terminals, and the terminal is formed of a material having rigidity equivalent to that of a material other than the battery case substrate, such as plastic, and is fixed to a portion other than the battery case substrate. To do.

[0009]

EXAMPLES The present invention will be described in detail below with reference to examples. FIG. 1 is a plan view of the first embodiment of the present invention.
1 is a sectional view of a portion indicated by AA in FIG. 1, and FIG. 3 is a sectional view of a portion indicated by BB in 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 board 4, and 5 is a storage element. ROM, 51 is another storage element RAM, 7 is a + terminal for the battery, and 8 is a negative terminal having a coil spring shape. Insert the end of the substrate 4 into the groove of the battery case frame 3 (not shown in the figure), insert the protrusion of the battery case frame 3 into the hole provided in the substrate 4 and then caulk (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 housing portion by a battery case 34 formed by the battery case frame 3 and the substrate 4. The space 11 is a battery accommodating portion that is connected to the outside through the opening portion 21 and allows the battery to be taken in and out. The opening 21 can be closed with a battery lid (not shown), and the space 1
1 is cut 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 are formed.
Becomes a battery terminal and current flows. Also, + terminal 7 and-
The terminal 8 is in contact with the battery case frame 3, and the contact pressure between the battery and the + terminal 7, −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
It is guided to the space 12 on the substrate 4 and is electrically connected to the ROM 5 and the like. In this 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 accurately position the terminal 41 with respect to the battery case 34.

FIGS. 4 and 5 are sectional views of the essential parts 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 connected to the space 1
It is bent into a substantially U shape along the wall of the battery case frame 31 in 1 and is 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 provided near the center of the flexible board 40.
Is formed, the wiring pattern connected to the wiring pattern to which the terminals 41 and 42 and the battery terminal 81 are soldered is guided to the space 12 on the flexible substrate 40, and is joined to the substrate 6 at the soldering portion 61, It is electrically connected to the ROM 5 and the like. In the completed state, the flexible substrate 40 is the upper case 1.
Since it is backed up with, it will not be deformed even if it is pressed during writing or reading operation.

FIG. 6 is a sectional view of a main portion 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. 32 is a battery case frame, and 45 is a substrate, and 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. Terminal and + terminal 7
Battery terminals such as 1 can be provided in the same manner as in the first embodiment, and are soldered to the substrate 60 at the soldering 62 portion so as to be electrically connected to the ROM 5 and the like. The configuration of this embodiment has an advantage that the soldering with the substrate 45 can be easily performed regardless of the position of the substrate 60.

According to the above-mentioned structure, although the terminal 41 is provided in the case, the ROM 5 and the RAM are provided.
In order to read and write 51, the battery lid and the battery are removed, the terminal 41 is exposed as shown in FIG. 1, and the terminal 41 is brought into contact with the connector connected to the reading device and the writing device. The connector simply inserts into the battery case,
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. Further, the terminal 41 can be surrounded by a wiring pattern such as a wiring pattern 43 obtained by soldering the negative terminal of the battery, but since it is surrounded by a ground close to the power source, static electricity enters or electromagnetic noise is generated. However, the influence can be reduced. In addition to the effect of passing through the wiring pattern, the space 12 is formed by the battery case.
Since it is cut off from 1, 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. Hole 91
Is a terminal 41 (4 in this embodiment) used by the end user.
The terminal 41 (7 in this embodiment) used by the service company or the like to write individual information is covered. The end user can only use the uncovered terminals 41. The terminals 41 etc. covered by the protective cover 9 are
Is attached and is isolated from the space 11, and is hardly affected by static electricity from the outside. Since the polarity symbols 92 and 93 and the indications 94 and 95 of the battery can be indicated on the protective cover, it is not necessary to consider them on the substrate, and the entire surface can be connected to the terminal 41.
It can be effectively used for wiring patterns, solid ground, and the like.

Terminal 4 covered by a service company
When the ROM 5 is rewritten by using 1, the protective cover 9 is removed before use. If the protective cover 9 is pasted using a re-adhesive agent that does not cure even if pasted, the peeled protective cover 9 can be reused. Not only the waste of parts is eliminated, but also it is not necessary to prepare a protective cover 9 for replacement, which leads to a reduction in costs such as rewriting. In particular, in the case where each device has a unique number or the like, the benefit of being able to reuse the device is great. The protective cover 9 has a battery and writing,
A weak adhesive force is sufficient because the reading connector does not exert a peeling force when it is touched.

The protective cover 9 can be realized with little increase in cost even if the protective cover 9 is partially pierced by using a seal such as a battery display.

FIG. 8 is a plan view of the protective cover of the fifth embodiment according to the present invention, and FIG. 9 is a sectional view of the 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 integrally formed 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. Since the battery case 35 can be reinforced in strength, the handleability before being incorporated into the upper case 1 is improved, and the backup by the wall of the upper case 1 is not required, the space between the wall of the upper case 1 and the flexible substrate 40 can be improved. It becomes easy to arrange other members. Since the strong material is used, the protective cover 96 is
Although it becomes thicker, the terminal 41 in the portion of the hole 98 is less likely to be inadvertently contacted, and the protection function is improved. To remove the protective cover 96 from the battery case 35, use the groove 9
The protective cover 96 may be deformed by prying 9 with a pin-shaped object, 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 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 with the battery case frame 31. May be integrated with.

[0018]

As described above, according to the present invention, since a part of the battery case is composed of the circuit board and the terminals which are electrically connected to the memory element are provided, writing to the memory element can be performed only by removing the battery lid. There is an effect that the data can be read and the work is extremely easy. In addition, since the terminals are isolated from the outside, there is an effect that the storage element can be prevented from being damaged by static electricity or the like. In addition, the space that houses the electronic circuit
Since it is isolated from the space that houses the battery and does not come into contact with the electronic circuit section from the outside during normal use, it is possible to eliminate the effects of static electricity, dust, moisture, etc. as well as misuse by the user. This has the effect of improving the reliability of the circuit section. 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 in the case where holes are formed, and there is an effect that many terminals can be provided. At that time, there is also an effect that the connector can be similarly large and durable.

Further, since the protective cover in which all or a 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 is
There is an effect that the terminals other than the terminals to be used cannot be touched and the circuit connected to the terminals is less affected by mistake. Further, there is an effect that the periphery of the terminal can be covered and protected while the terminal can be used.

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

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

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 a main part of a first embodiment of the present invention.

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

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

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

FIG. 6 is a sectional view showing a main 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)

[Claims] 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.