JP3267086B2 - Electrical equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric device having a built-in replaceable battery and used in ordinary households.

[0002]

2. Description of the Related Art In recent years, a battery such as a coin-type lithium battery has been frequently used in electrical equipment for backing up a microcomputer or maintaining a clock function when a plug is removed from an outlet or during a power failure. ing.

[0003] An example of an automatic bread maker among conventional electric appliances will be described below. FIG. 9 is a sectional view of a conventional automatic bread maker. In FIG. 9, a base 2 has a baking chamber 3 having a built-in heater 4 at its upper part, and
The motor 6 is fixed to the lower surface. The base 2 has a bottom plate 7 at its lower end to hold and fix the body 1 made of sheet metal. Reference numeral 8 denotes an openable / closable lid that covers the firing chamber 3. The bread maker 9 is removably mounted on the bread maker mounting base 5, and a shaft 12 having a blade 10 mounted upward and a driven connector 11 mounted below the central bottom of the bread maker 9 is rotatable. Supported. The driven connector 11 is engaged with a driving connector 13 provided on a shaft 12 rotatably supported on the bread container mounting table 5, and is driven by a motor 6 via a large pulley 14, a small pulley 15, and a belt 16. 10 can rotate.

The power supply board 17 includes a heater 4 and a motor 6
Is an electric circuit board for supplying electric power to the base 2, and is fixed on the base 2 via a board base 18 made of resin. The microcomputer board 19 provided on the upper part of the body 1 is an electric circuit board which issues a control command to an electronic unit such as a heater 4 driven by the power board 17, a triac for switching the motor 6, and a relay. 17 connected to
It is built into the cover body 22 via the storage section 21.
The microcomputer board 19 includes a crystal oscillator and a liquid crystal display unit, and displays time and displays a cooking process. Reference numeral 23 denotes a battery substrate on which a coin-shaped lithium battery is fixed on a paper phenol laminated board.
9 and is screwed and fixed to the cover body 22 via the holder 25.

The operation of the automatic bread maker constructed as described above will be described below. When the bread material is put into the bread maker 5 and the operation is performed, the microcomputer circuit 19 and the power supply circuit 17 are operated.
The kneading and fermentation of the dough are sequentially performed by controlling the heater 4 and the motor 6 with the aid of a heater.
Bake the bread by heating to a high temperature of 0 ° C. The microcomputer board 19 is normally operated by power supplied from a household outlet, but when the plug is removed from the outlet, the power supplied from the battery board 23 prevents the erasure of the microcomputer memory and maintains the time display function. Perform

[0006]

However, in the above-described conventional configuration, the replacement of the battery requires replacement of the entire battery substrate 23, which is inconvenient, and the cost required for battery replacement is high. Further, when a liquid such as water intrudes from the opening of the cover main body for mounting the holder 25, water is applied to the power supply substrate 23, which causes a short circuit. Although described in an example of an automatic bread maker, similar problems are encountered in electric appliances in general.

[0007] The present invention solves the above conventional problems, it is an purpose the user to provide an electrical device that can be easy and reliably replace the battery.

[0008]

Means for Solving the Problems] The present onset bright in <br/> order to solve the conventional problems, disables be attached to the front and back reversed
Comprising a battery holder over which the ability to slit-like openings provided in the main body, performs battery is mounted to the main body through the battery holder, the edge portion is provided in the battery holder, edges electrostatic
When the pond holder is attached to the main body, the edge is outside the main body
The battery holder extends into the battery holder
If you insert over the front and back reversed, edge body opening end
The positive and negative poles of the battery terminals
Almost impossible to insert battery holder until touch
The battery is easily and securely mounted.
It is possible to provide an electric device that can be worn.

[0009]

According to the first aspect of the present invention, a control device is incorporated.
A main body, a battery for supplying power to the control device,
A battery terminal for connecting the control device to the battery, and a battery mounting portion.
A locking portion for holding both sides of the battery step on the surface,
Battery is removable, and the battery is installed upside down
And a battery holder that cannot be removed.
A slit-shaped opening is provided in the main body, and the battery holder is
Attach the battery to the main body through the
The battery holder to the main body.
When the battery holder is mounted, the edge is located outside the main body.
The battery holder is turned upside down in the opening of the main unit.
When inserted in the orientation, the edge hits the end of the main body opening
The positive and negative poles of the battery terminals are both connected to the battery.
It is almost impossible to insert the battery holder until touched
Thus, it is possible to provide an electric device that allows the user to easily replace the battery.

[0010] Also, the positive electrode of the battery, is apparatus eliminating reverse insertion of the negative electrode to operate safely normally, it is possible to provide an electrical apparatus capable of preventing cell leakage due to the reverse insertion, rupture and the like.

[0011] Also, the battery of the apparatus mounting infant can not be easily removed, it is possible to provide an electric device which can prevent accidents such as swallowing the battery.

According to a second aspect of the present invention, a control circuit includes:
A housing for holding the control circuit, and a housing for housing the housing.
Cover body and battery for supplying power to the control circuit
And a battery holder for mounting the battery,
An opening is provided in the cover body, and the battery holder is
-Attach / detach and attach the storage unit and cover
While holding the battery holder, connect the battery and the control circuit.
Comprising a battery terminal for connection, cut and raised to the battery terminals
Forming a shape, a rib having a fitting portion on the outer surface of the storage portion and
A boss is provided, and the ribs and
While holding the pond terminal,
The battery terminal was engaged with the fitting portion and the battery terminal was locked in the storage portion.
Thus, it is possible to provide an electric device that can reliably hold the battery holder on the cover main body without increasing the number of parts.

[0013] Also, it is possible to provide an electric device that can be securely fixed to the housing external surface terminals for the battery.

According to a third aspect of the present invention, there is provided the configuration according to the second aspect.
In particular, contact the positive and negative poles of the battery,
Equipped with plus and minus terminals to connect to control circuit
The positive terminal and the negative terminal are substantially U-shaped.
In one shape, at an angle rotated from 60 degrees to 120 degrees with each other
With this arrangement, it is possible to provide an electric device that can reduce the cost of the battery terminal and ensure a stable contact pressure with the battery.

According to a fourth aspect of the present invention, there is provided the configuration according to the second aspect.
In particular, there is a charging section below the cover body opening.
Above the charging section and below the cover body opening.
By installing a container-shaped water receiver at the position, it is possible to reliably prevent the liquid such as water from falling to the charged part, prevent unsafe conditions such as electric leakage, ignition, etc., and suppress the temperature rise of the coin-shaped battery Electrical equipment capable of performing the above-described operations.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) An embodiment of an automatic bread maker among electric appliances of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted.

1 to 6, the microcomputer board 26
Has its edge locked to the storage portion 27 by a claw 28. On the microcomputer board 26, an LCD 49 for displaying a baking process, a cooking time, and the like is provided. An L-shape 30 is formed on the outer surface of the storage section 27 so as to serve as a guide when the battery holder 29 is mounted. Further, a positive terminal 32 and a negative terminal 33 for guiding electric power from the coin-shaped lithium battery 31 to the microcomputer board 26 are sandwiched between the gate-shaped rib 34 and the boss 35 on the outer surface of the storage portion 27. Cut and raise 36 to gate-shaped rib 3
4 and fixed. The positive pole terminal 32 and the negative pole terminal 33 are fixed at an angle of 75 degrees to each other. Reference numeral 37 denotes a conductor connecting the positive terminal 32 and the negative terminal 33 to the microcomputer board 26.

As described above, the storage section 27 having the microcomputer board 26 and the positive pole terminal 32 and the negative terminal 33 is provided.
Is fixed at one end to a locking portion 39 of the cover body 38 and is fixed by screws 40 with screws. Battery holder 2
Reference numeral 9 denotes a coin-shaped lithium battery 31 which is locked by nails A41 and B42. Cover body 38 with built-in storage 27
Are fixed to the body 1 made of sheet metal by screwing and fixing. The battery holder 29 provided with the coin-shaped lithium battery 31 is mounted on the cover main body 38 from the opening 43 of the cover main body 38 by a horizontal linear operation. that time,
The battery holder 29 is sandwiched between the L-shape 30 of the storage section 27 and the inner wall of the cover body 38, and is also held by the tabs A44 and B45 of the battery holder 29.
The cover body 38 is locked to the edge of the opening 43. The width of the opening 43 is as narrow as 8 mm, and has a slit shape. In the above configuration, the basic operation at the time of bread making is the same as in the conventional example, and a description thereof will be omitted.

The cover body 38 is inserted through the battery holder 29.
Since the coin-type lithium battery 31 is mounted on the battery, the replacement at the time of battery exhaustion is not an exchange with the battery board unit, but only a single battery exchange, so that the cost is low. Also, since the battery taken out of the main body is held in the battery holder 29, the battery taken out is less likely to be lost.

Further, the user does not need to perform connection work or tool work required when replacing the battery board unit, and simply inserts the coin-shaped lithium battery 31 into the battery holder 29 and inserts it into the cover body 38. Battery replacement can be performed.

Further, since the opening 43 is narrow with a slit shape having a width of 8 mm, a user inserts his / her finger through the opening 43 to prevent the user from touching the positive terminal 32 and the negative terminal 33 which are charging parts. Electric shock accidents can be prevented and safety is improved.

Further, when the user attempts to insert the battery holder 29 into the opening 43 of the cover body 38 upside down, the edge A46 of the battery holder 29 is
Can not be attached because it hits the edge portion of the cover, and reverse insertion can be prevented. This prevents the battery from leaking or bursting due to the reverse insertion, and allows the device to operate safely and normally.

Also, since the coin-shaped lithium battery 31 has a configuration in which the step is locked by the claws A41 and B42 disposed on the inner surface of the battery holder 29, the coin-shaped lithium battery is mounted upside down on the battery holder. Try nail A
And the nail B is in the way and cannot be mounted. Therefore, it is possible to prevent the battery from leaking or bursting due to the reverse insertion of the positive and negative electrodes, and to operate the device safely and normally.

The battery holder 29 includes a cover body 38.
Sandwiched between the inner wall and the L-shaped shape 30 of the storage section 27,
It is locked by knobs A44 and B45. Thus, the battery holder 29 is securely held by the cover body 38, and the coin-type lithium battery 31 is connected to the positive electrode terminal 32 and the positive electrode terminal 32 even when the motor 6 rotates in the baking process, the bread material is kneaded, and vibration occurs. Negative pole terminal 3
3 and stable contact can be secured.

When the battery holder 29 is detached from the device, it is necessary to simultaneously perform two operations, namely, the operation of releasing the lock of the tabs A and B and the operation of pulling out the battery holder 29 from the cover body 38. It is possible to prevent accidents such as taking out and swallowing the battery. Also,
The direction of the operation for releasing the engagement between the tabs A44 and B45 is perpendicular to the direction in which the battery holder 29 is pulled out. Accidents are prevented and safety is further improved.

The positive pole terminal 32 and the negative pole terminal 33 are sandwiched between the gate ribs 34 and the bosses 35, and are locked to the gate ribs 34 by the cut-and-raised portions 36. The movement of the negative pole terminal 33 is restricted in all directions, up and down, left and right, and front and rear, so that the negative pole terminal 33 is securely fixed to the storage section 27. Thereby, stable contact with the coin-shaped lithium battery 31 can be obtained, and abnormal consumption of the battery due to an increase in contact resistance at the contact portion due to poor contact can be prevented.

Also, in the assembly work for attaching each terminal to the storage portion 27, a clear clicking feeling is obtained when the cut-and-raised portion 36 is locked to the gate-shaped rib 34, so that the assembly workability is good, and the assembly failure is reduced. Less likely to occur.

The positive pole terminal 32 and the negative pole terminal 33 have a U-shape, each having two bosses 35.
, The holding in the storage portion 27 is more stable. Further, each terminal has the same shape, and cost reduction can be achieved by sharing parts.

(Embodiment 2) An embodiment of an automatic bread maker among electric appliances of the present invention will be described below with reference to the drawings. The same components as those in the conventional example and the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

7 and 8, the microcomputer board 2
6 has its edge locked by a claw 28 to the storage portion 27. An L-shaped shape 30 is formed on the outer surface of the storage portion 27 so as to serve as a guide when the battery holder 29 is mounted. A battery terminal 47 for guiding electric power from the coin-shaped lithium battery 31 to the microcomputer board 26 is provided on the outer surface of the storage section 27.

One end of the housing 27 having the microcomputer board 26 and the battery terminal 47 as described above has one end thereof.
And fixed by screws 40 with screws. The battery holder 29 in which the coin-shaped lithium battery 31 is mounted is provided with the slit-shaped opening 4 in the cover body 38.
The mounting is performed from 3. Below the storage portion 27, a water reservoir 48 in the shape of a tori is provided. When the liquid such as water intrudes from the opening 43 by the water receiver 48, it is possible to prevent the leakage and the ignition due to the liquid being applied to the power supply board 17 which is the charging part on the lower base 2. Water catch 4
The water accumulated on the upper surface 8 is dropped and discharged to the end of the base 2 which is a non-charged portion due to the shape of the toy.

In the baking at the end of the bread making process,
The temperature of the atmosphere in the firing chamber is set to 150 to 23 by the heater 4.
The bread is baked at a high temperature of 0 ° C. If the water receiver 48 is not provided at that time, the ambient temperature of the coin-type lithium battery 31 is usually about 80 to 90 ° C. Coin-shaped lithium battery 3
No. 1 generally has a property that the battery life is reduced to about す る と when the ambient temperature rises by 10 ° C., so that use at a high temperature of about 80 to 90 ° C. is generally a use limit temperature, and 100 ° C. Above this point there is a risk of explosion and even fire. However, in order to exhibit the effect of the heat shield by attaching the water receiver 48, the ambient temperature of the coin-shaped lithium battery is 70 to 8 mm.
It has been experimentally confirmed that the temperature can be suppressed to about 0 ° C.

Although each of the above embodiments has been described with reference to an example in which the present invention is applied to an automatic bread maker, it goes without saying that the present invention may be applied to other electric appliances.

[0034]

As is clear from the description of the above embodiment , according to the inventions described in the first to fourth aspects of the present invention, the user can easily and securely replace the battery, and the cost of battery replacement can be reduced. In addition, the battery can be prevented from being lost, and by inserting a finger through the opening of the main unit when replacing the battery, the battery terminal, which is the charging part, will not be touched, preventing accidental electric shock and ensuring safety. Is improved.

[0035] Also, the positive pole of the batteries, and the reverse insertion operation device properly eliminate the negative electrode, also batteries to leak by the reverse insertion can be prevented bursting like.

[0036] Also, by locking to the housing portion of the batteries terminals can be fixed reliably housed external surface of the battery terminal.

[0037] Also, the terminal co-in type battery shall low cost it is possible to ensure contact pressure to a stable cell.

[0038] Also, securely preventing drop of liquid such as water to the charging unit leakage, it is possible to suppress temperature rise of the battery prevents the unsafe condition of the ignition and the like.

[Brief description of the drawings]

FIG. 1 is a sectional view of an automatic bread maker according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the automatic bread maker from below a cover body.

FIG. 3 is a plan view of the cover body of the automatic bread maker as viewed from below.

FIG. 4 (a) is a perspective view of a state where the battery holder is removed from a cover body, and (b) is a perspective view of a state where a battery is removed from the battery holder.

5A is a cross-sectional view of the battery holder. FIG. 5B is a cross-sectional view taken along line AA of FIG.

FIG. 6 is an exploded perspective view showing attachment of a battery terminal of the battery holder.

FIG. 7 is a sectional view of an automatic bread maker according to a second embodiment of the present invention.

FIG. 8 is a perspective view of the automatic bread maker with a body removed.

FIG. 9 is a sectional view of a conventional automatic bread maker.

[Explanation of symbols]

 1 Body 17 Power Supply Board 26 Microcomputer Board 27 Housing 29 Battery Holder 31 Coin-Type Lithium Battery 32 Positive Electrode Terminal (Battery Terminal) 33 Negative Electrode Terminal (Battery Terminal) 34 Gate Rib 36 Cut and Raised 38 Cover Body 41 Claw A Stop part) 42 Claw B (locking part) 43 Opening part 44 Knob claw A (Claw part) 45 Knob claw B (Claw part) 46 Edge part A 48 Water receiver (Container shape)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-25188 (JP, A) JP-A-6-13051 (JP, U) JP-A-4-8365 (JP, U) JP-A-3-8 109263 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) H01M 2/10

Claims (4)

(57) [Claims] 1. A main body containing a control device, a battery for supplying power to the control device, a battery terminal for connecting the control device and the battery, and a step portion of the battery on an inner surface of a battery mounting portion.
With locking parts that hold both sides of the
And it is impossible to install the battery upside down
A battery holder with a slit, an opening in the form of a slit is provided in the main body, a battery is mounted on the main body via the battery holder, and an edge is provided in the battery holder.
When the battery holder is attached to the main body, the edge is
The main body is extended to the battery holder so as to be outside the main body.
If the battery holder is inserted upside down in the opening
If the edge contacts the end of the main body opening, the battery terminal
Battery until both positive and negative poles touch the battery.
Electrical equipment that makes it almost impossible to insert a rudder . 2. A control circuit, and a storage for holding the control circuit.
Storage unit, a cover body containing the storage unit, and the control unit
A battery for supplying power to the circuit, and a battery for mounting the battery.
With a pond holder and an opening in the cover body.
The battery holder from this opening.
The battery holder between the storage section and the cover body
Together, comprising a battery terminal for connecting the battery and the control circuit, the cut-raised to form the shape to the battery terminals, the housing portion outer surface disposed ribs and bosses having a fitting portion, the fitting portion An electric device in which a battery terminal is held by a rib and a boss having a shape, and the cut-and-raised shape is fitted to the fitting portion so that the battery terminal is locked to the storage portion. 3. A battery according to claim 1, further comprising a positive terminal and a negative terminal which are in contact with a positive electrode and a negative electrode of the battery, and which are connected to a control circuit. 3. The electric device according to claim 2 , wherein the electric device is disposed at an angle rotated by 120 degrees. 4. The electric apparatus according to claim 2 , further comprising a charging section below the cover main body opening, and a container-shaped water receiver provided above the charging section and below the cover main body opening.