JP2013232420A - Structure of battery case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the structure of a battery case which allows for selection of any one of size D battery or size AA battery by using a common battery case, and allows for common use of a battery case housing section, and thereby the die for molding a battery case can be standardized while reducing the cost.SOLUTION: The structure of a battery case 4 being housed in a battery case housing section has, in the battery case 4, a loading space 25 where any one of single or a plurality of size D batteries or size AA batteries can be loaded selectively. The loading space 25 includes connection means 14 for connecting the electrode of a size D battery to a body side electrode spring located on the outside of the battery case 4 when loading the size D battery, and connection means 16 for connecting the electrode of a size AA battery to a body side electrode spring when loading the size AA battery. The connection means 16 for a size AA battery is constituted of a pair of longitudinal terminal fitting plates 18 for connecting the size AA batteries in series, and connecting an electrode located at the end with the body side electrode spring.

Description

The present invention relates to the structure of a battery case.

  In recent years, gas cookers have been required to have safety, operability, and automatic cooking function during use, and batteries are generally used as a driving power source for equipment for control and automatic cooking.

  Conventionally, a gas stove using two single batteries is known (for example, see Patent Document 1).

  Many gas stoves of this type are used as a power source by connecting two single batteries in series for the following reasons. In other words, when two batteries are used as the power source, the battery electrode voltage, which is a guide for battery replacement when the battery is consumed due to the use of equipment, that is, the end voltage is about 2.1 V in a series connection of two batteries. It is appropriate to do. In addition, integrated circuits (control circuits) that can be used at a power supply voltage of about 2 V have become widespread. Furthermore, although there are various types of batteries, a single battery is preferred because the frequency of battery replacement can be reduced and it is easy to obtain.

  By the way, although the replacement frequency of the battery can be reduced by suppressing the power consumption of the control circuit used for the stove, it is generally necessary to replace the battery about once a year. In order to eliminate the need for battery replacement, AC 100 V may be used as a power source. However, in this case, there is a problem that the device cannot be used during a power failure.

  In addition, a backup power source can be used so that the device can be used even in the event of a power failure. However, the power source voltage of the control circuit of the device using AC 100V as the power source is connected to two single batteries in series and used as the power source. In some cases, a voltage that is higher than the power supply voltage of the control circuit and about six batteries connected in series is required as the backup power supply voltage.

  Since the continuous use time of the backup power supply for power failure may be about several hours, a battery connected in series with AA batteries may be used as a backup power supply, but a new battery that can hold six AA batteries Since a case is used, there is a problem in that the battery case for two single batteries and the battery case storage part in the device main body, which have been used in many devices using a conventional battery as a power source, cannot be shared.

JP 2008-16185 A

  The present invention was invented in view of the above-described conventional problems, and the problem is that a single battery or an AA battery can be selected using a common battery case. It is an object of the present invention to provide a battery case structure that can share a battery case housing portion, thereby making it possible to share many parts of a mold for molding the battery case and reduce costs.

  The structure of the battery case of the present invention is a structure of a battery case that is removably accommodated in a battery case accommodating portion provided in a device body that uses the battery. The battery has a loading space in which either one of the batteries or a plurality of AA batteries can be selectively loaded, and the loading space is formed so that the AA batteries can be loaded in a configuration in which polar directions are alternately arranged in parallel. A single battery connection means is provided for connecting the electrode of a single battery to a main body side electrode spring located outside the battery case when the battery is loaded, and the AA battery electrode is used as the main body side electrode spring when loading the AA battery AA battery connection means to be connected, the AA battery connection means is composed of a pair of front and rear terminal mounting plates facing the inside of the loading space and disposed at both axial positions of the AA battery. Terminal mounting plate Are provided with inter-battery connection terminals for electrically connecting AA batteries in series, and the positive and negative electrodes constituting the main body side electrode spring with the electrode located at the start and end of the battery array. An electrode fitting for individually connecting to the spring is provided.

  The present invention makes it possible to select a single battery specification and an AA battery specification using a common battery case and to share a battery case storage unit. As a result, many of the molds for molding a battery case can be used. This makes it possible to share parts, reduce the cost of parts, and reduce the cost of molds.

It is a disassembled top view explaining the battery case provided with the loading space to which the connection means for AA batteries used for one Embodiment of this invention is attached. It is a top view explaining the case where four AA batteries are loaded in a parallel arrangement state in the same loading space. It is a top view explaining the case where two AA batteries are piled up on four AA batteries arranged in parallel same as the above. (A) is a top view explaining the six AA batteries stacked in the same manner, (b) is a side view. It is explanatory drawing of a pair of front and rear terminal mounting plates constituting the AA battery connecting means, (a) is an explanatory diagram of inter-battery connecting terminals attached to the front terminal mounting plate, (b) is the rear terminal Explanatory drawing of the battery connection terminal and electrode metal fitting which are attached to an attachment board, (c) is sectional drawing explaining the attachment state of the battery connection terminal, (d) is along the MM line of the electrode metal fitting of (b). Sectional drawing and (e) are sectional drawings which follow the NN line | wire of the electrode metal fitting of (b). (A) (b) is explanatory drawing of the battery cover put on the loading space of a battery case same as the above. (A) is a side view explaining the case where the battery case lid same as the above is opened and a battery case loaded with two single batteries is inserted into the battery case housing portion, and (b) is a state in which the battery case lid is closed. FIG. It is a front view of the gas stove with a grill provided with the battery case same as the above and the battery case storage part with a battery case lid which stores this. It is a front view of the operation part vicinity of the state which closed the battery case cover same as the above. It is a front view of the vicinity of the operation unit in a state where the battery case lid is opened. It is a top view of the gas stove with a grill same as the above.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  As shown in FIG. 8, the gas stove 1 with a grill according to the present embodiment includes a built-in unit including a stove part 2 having a stove burner 3 and a grill part 21 having a gas combustion type grill burner (not shown). It is a gas stove 1 of the type. Of course, it is not limited to a built-in stove, and may be a table stove.

  First, the basic structure of the stove part 2 and the grill part 21 will be described.

  The upper surface of the stove part 2 is covered with a top plate 8 formed of a substantially square glass plate.

  On the stove stand (not shown) provided in the stove main body 7, as shown in FIG. 11, a two-burner stove burner 3 composed of a high thermal power burner and a standard burner is placed. It arrange | positions in the form which the flame hole part of each stove burner 3 protrudes on the top plate 8 from the opening part provided on the diagonal of the top plate 8. FIG. In addition, since it is easier to use the high-fired burner placed in front, the high-burner burner is placed in the left front, and the standard burner is placed in the back right. Further, a sealing member (not shown) is sealed between the stove burner 3 and the opening of the top plate 8 so that the broth does not enter.

  On the top plate 8, virtues 9 for receiving and supporting an object to be heated (such as a pan) for the stove burner 3 are placed.

  The stove body 7 is provided with a control unit (not shown) composed of a microcomputer configured to execute various controls. Further, each stove burner 3 is provided with an ignition plug (not shown) as an ignition device for executing an ignition operation and a thermocouple (not shown) for detecting an ignition state. When a later-described stove implement plug operation knob 31 is pushed and operated to the “ignition” angle, gas is supplied to the stove burner 3, and the ignition igniter is energized to ignite the gas by continuous spark. When the gas is ignited, the temperature of the thermocouple provided in each stove burner 3 rises, and the control unit maintains the energization of the safety valve, whereby the gas supply is continued and the combustion is continued. If the stove burner 3 is extinguished due to spillage, etc., the temperature of the thermocouple will drop, and if the control unit detects the fire extinguishing of the burner, the power supply to the safety valve will be cut off and the gas supply to the burner will stop. ing.

  Moreover, the temperature sensor 10 for the stove which consists of the thermistor for contacting the bottom part of to-be-heated material (pan etc.) and detecting the temperature is provided in all the mouths of the said 2 mouth stove burner 3. As shown in FIG. The stove temperature sensor 10 is provided so as to pass through the center of the annular stove burner 3, and the temperature-sensitive head of the stove temperature sensor 10 is biased upward by a spring. A predetermined fire extinguishing temperature (for example, 270 ° C.) is detected by coming into contact with the bottom surface of the heating container placed on the container.

  On the other hand, the grill portion 21 is provided with a grill net (not shown) as a placement portion for placing an object to be cooked such as fish in a box-shaped grill cabinet 22 formed in a box shape opened on the front surface. It is comprised, The grill burner (not shown) for heating a to-be-cooked item from the upper surface is provided.

  The grill burner is also provided with an ignition plug (not shown) as an ignition device for performing an ignition operation and a thermocouple (not shown) for detecting an ignition state, similarly to the stove burner 3. That is, when the grill appliance plug operation knob 32 is pushed and operated to the “ignition” angle, the gas is supplied to the grill burner, and the ignition igniter is energized to ignite the gas by the continuous spark. When the gas is ignited, the temperature of the thermocouple provided in the grill burner rises, and the control unit maintains the energization of the safety valve so that the gas supply is continued and the combustion is continued. In the unlikely event that the grill burner is extinguished, the temperature of the thermocouple decreases, the control unit detects the extinguishing of the burner, cuts off the energization of the safety valve, and stops the gas supply.

  Further, as shown in FIG. 9, two stove appliance plugs are operated on the front side of the grill cabinet 22 as an operation unit 30 for igniting and extinguishing the stove burner 3 and the grill burner and adjusting the heating power. A total of three knobs 31 and one grill appliance plug operation knob 32 are provided, and a battery case storage portion 37 (see FIG. 7) is provided. An operation display unit 36 including a display unit 34 and a sensor release switch 33 is installed in a part of the battery case storage unit 37. The display unit 34 of this example will be described. First, the grill combustion lamp 34a ignites the grill and the LED is turned on when ignition is detected. The grill burner is located on the upper surface of the grill cabinet 22, and it is difficult to visually confirm the ignition to the grill burner. Therefore, the grill combustion lamp 34a improves usability. The battery replacement sign lamp 34b, for example, in a dry battery specification using two single dry batteries as a normal power source, the LED blinks when the series voltage of the battery loaded in the battery case storage unit 37 is 2.1 V or less, Notify that it is time to replace the battery. The sensor release lamp 34c is turned on when the sensor release mode is set by pressing the sensor release switch 33 for 3 seconds. Here, the sensor release switch 33 is for switching to the sensor release mode when performing high temperature cooking such as fried food or fried food in the stove unit 2. Generally, in order to avoid cooking mistakes and tempura oil fires due to overheating, when the temperature detected by the temperature sensor 10 exceeds the preset fire extinguishing set temperature, the filter heat prevention function works automatically. There is a problem of being extinguished. Therefore, the sensor release switch 33 can be set to the sensor release mode in which the operating temperature of the filtration heat prevention function is changed to, for example, 290 ° C. by pressing and holding the sensor release switch 33 for 3 seconds or longer. Lights up to make it possible to determine at a glance that the sensor release mode has been set.

  By the way, the latest stove has become highly functional, and the number of operations that are complicated is increasing. The stove with a grill according to this embodiment is a conventional push-down type equipped with a blow-off safety device. Because it is a simple specification with a fire extinguisher type stove and a safety device by overheating such as tempura oil by detecting the temperature at the bottom of the pan on the whole stove, no complicated operation is required for use. It is easy to use.

  As shown in FIG. 7, the battery case 4 is housed in the battery case housing part 37 so as to be freely inserted and removed, and device control power is supplied from a dry battery to be described later. Reference numeral 39 in the figure denotes an LED / sensor substrate storage section.

  Here, as shown in FIG. 1, the battery case 4 of the present invention is formed in a bottomed box shape that is open upward and includes a case front wall 4a, left and right case side walls 4b, and a case rear wall 4c. Has been. The battery case 4 is made of synthetic resin, and most of the molds are common to injection-mold the battery case 4, and so for a portion with different specifications, a so-called nested type is used. It can be injection molded into different shapes for AA batteries. In addition, 11 in a figure is a handle and 12 is a hole of the case rear wall 4c in which the main body side electrode spring 13 is inserted.

  The loading space 25 provided in the battery case 4 has a size capable of selectively loading either one or a plurality of single batteries 6 or a plurality of AA batteries 5. Hereinafter, a case where two single batteries 6 and six AA batteries 5 are used will be described as an example.

  First, the usage pattern of the single battery 6 will be described. As shown in FIGS. 7 and 10, two single batteries 6 are loaded into the loading space 25 in a form in which the polar directions are staggered in parallel. The battery case 4 includes single battery connection means 14 for connecting the electrode of the single battery 6 to the main body side electrode spring 13 located outside the battery case 4. Here, the positive electrode of one single battery 6 and the negative electrode of the other single battery 6 are connected in series via a single battery connection fitting 15 (FIG. 1) provided on the inner surface of the case front wall 4a. Thus, when the battery case 4 is stored in the battery case storage part 37 inside the stove main body, the hole of the case rear wall 4c with respect to the negative electrode of one single battery 6 and the positive electrode of the other single battery 6 12 (FIG. 1), the positive and negative bipolar springs 13A and 13B constituting the main body side electrode spring 13 are connected to each other so that the power of the device is supplied.

  Next, the usage pattern of the AA battery 5 will be described. The loading space 25 in which two single batteries 6 can be loaded in a parallel arrangement has a size that allows six AA batteries 5 to be loaded in a stacked state. Incidentally, the supply voltage for the auxiliary power supply at the time of a power failure in the AC 100V power supply equipment requires at least 6 V. Therefore, a battery in which six AA batteries 5 are electrically connected in series is suitable as the auxiliary power supply. Even if the end voltage per battery is about 1 V, DC 6 V can be supplied by connecting 6 batteries in series at the time of battery life.

  In the usage form of the AA battery 5, AA battery connection means 16 attached to the battery case 4 is used.

  The AA battery connection means 16 of this example includes a pair of front and rear terminal mounting plates 17, 18 that face the inside of the loading space 25 and are arranged at both axial positions of the AA battery 5. The front terminal mounting plate 17 is tightly held on the inner surface of the case front wall 4a by a front rib 23a projecting from the front side of the case side wall 4b shown in FIG. 1, and is connected to the inner surface of the case front wall 4a. The metal fitting 15 can be covered with the front terminal mounting plate 17. On the other hand, the rear terminal mounting plate 18 is tightly held on the inner surface of the case rear wall 4c by a rear rib 23b protruding from the rear side of the case side wall 4b. Each terminal mounting plate 17, 18 is made of a synthetic resin.

  A plurality of inter-battery connection terminals 19 made of a conductive material are respectively attached to the inner surfaces of the terminal attachment plates 17 and 18, and positive and negative bipolar springs constituting the body-side electrode spring 13 only on the rear terminal attachment plate 18. Electrode fittings 20 for individually connecting to 13A and 13B are attached.

  FIG. 5 shows an example. FIG. 5A shows a state in which the inter-battery connection terminals 19 are attached to three locations on the inner surface of the front terminal mounting plate 17, and FIG. 5B shows the lower side 2 of the inner surface of the rear terminal mounting plate 18. The state which attached the battery connection terminal 19 to the location and the electrode metal fitting 20 to the upper 2 locations is shown.

  The inter-battery connection terminals 19 attached to the terminal attachment plates 17 and 18 have the same shape, and as shown in FIG. 5C, a contact spring 19a that contacts the negative electrode and a contact piece 19b that contacts the positive electrode. It has.

  As shown in FIG. 5 (d), one electrode fitting 20 attached only to the rear terminal attachment plate 18 includes a contact spring 20a that contacts an electrode (negative electrode) located at the start end of the battery array, and a body-side electrode spring. 13, a contact piece 20 c that contacts the negative electrode spring 13 </ b> A, and the other electrode fitting 20 contacts the electrode (positive electrode) located at the end of the battery array, as shown in FIG. The contact piece 20b and the contact piece 20c which contacts the positive electrode spring 13B of the main body side electrode spring 13 are provided. Each contact piece 20c of the electrode fitting 20 is disposed so as to face the hole 12 of the case rear wall 4c.

  Next, when the six AA batteries 5 are loaded, as shown in FIG. 2, a pair of front and rear terminal mounting plates 17 and 18 are set in the battery case 4 and then, as shown in FIG. In addition, by loading four AA batteries 5 (hereinafter referred to as second battery 5F, third battery 5C, fourth battery 5D, and fifth battery 5E) in a parallel arrangement in which the polar directions are staggered, The electrodes of the batteries 5C to 5F are electrically connected in series via the inter-battery connection terminals 19 provided on the terminal mounting plates 17 and 18. Thereafter, as shown in FIG. 4, the remaining two AA batteries 5 (hereinafter referred to as a starting battery 5A and a terminating battery 5B) are stacked. At this time, the starting end battery 5A is stacked with a half-pitch shift so as to be positioned between the second battery F and the third battery C, and the terminal battery 5B is positioned halfway between the fourth battery 5D and the fifth battery 5E. Stack up by shifting the pitch. At this time, the negative electrode of the starting battery 5A is connected to the positive electrode of the second battery 5F via the inter-battery connection terminal 19 of the front terminal mounting plate 17, and the positive electrode of the terminal battery 5B is connected to the battery of the front terminal mounting plate 17 It is connected to the negative electrode of the fifth battery 5E via the terminal 19, whereby the six AA batteries 5 (5A to 5F) are electrically connected in series. At this time, the positive electrode of the starting battery 5A is connected to the contact piece 20b of the electrode fitting 20 of the rear terminal mounting plate 18, and the negative electrode of the terminal battery 5B is connected to the contact spring 20a of the electrode fitting 20 of the rear terminal mounting plate 18. It will be in the state. In this state, when the battery case 4 is stored in the battery case storage portion 37 inside the stove main body, the positive electrode spring 13B of the main body side electrode spring 13 of FIG. 5 (e) is connected to one hole of the case rear wall 4c. 12 and contacts the contact piece 20c of one electrode fitting 20 to which the positive electrode of the starting battery 5A is connected, and at the same time, the negative electrode spring 13A of the main body side electrode spring 13 of FIG. However, it contacts with the contact piece 20c of the other electrode metal fitting 20 which is inserted from the other hole 12 of the case rear wall 4c and to which the negative electrode of the termination battery 5B is connected. Thereby, it will be in the state by which the power supply of an apparatus is supplied from the six AA batteries 5 connected in series.

  Thus, either the single battery 6 or the AA battery 5 can be selectively loaded into the battery case 4 having the above configuration, and the single battery connection means 14 and the AA battery are provided. By properly using the connection means 16, the different specifications of the single battery and the AA battery can be easily handled. As a result, it is possible to select between the use of two single batteries 6 that are mainstream as a power source for a stove and the use of six AA batteries 5 that are desired as auxiliary power sources during a power failure for a stove with an AC 100V power supply specification. Many parts of the mold for molding the battery case 4 can be made common, so that the part cost can be reduced, and there is an advantage that the mold cost can be reduced.

  Further, the AA battery connection means 16 is composed of a pair of terminal mounting plates 17 and 18, which are inserted into the front and rear sides facing the loading space 25, thereby providing six AA batteries from the single battery specification. 5 can be easily changed to the specification of AA batteries that are electrically connected in series, and at this time, the single battery connection fitting 15 constituting the single battery connection means 14 is covered with the front terminal mounting plate 17. Therefore, it is not necessary to remove the single battery connection fitting 15. In general, the AA battery 5 has a slightly shorter length in the axial direction than the single battery 6, but the terminal mounting plates 17 and 18 are arranged on both sides in the axial direction of the AA battery 5, so There is also an advantage that the AA battery 5 can be reliably loaded in the loading space 25 suitable for the length of the single battery 6 without generating a gap.

  In addition, when six AA batteries 5 are arranged in parallel, the battery case 4 is enlarged. However, the battery case 4 can be made compact by stacking up and down as shown in FIGS. . In addition, since the space can be made substantially the same as when two single batteries 6 are arranged in parallel, it is not necessary to change the design of the battery case 4. In addition, the form of stacking is not limited to the examples in FIGS. 2 to 4, and for example, a structure in which three parallel arrangements are stacked by shifting a half pitch on the three parallel arrangements is also possible.

  FIG. 6 shows a case where the battery cover 24 is attached to be openable and closable above the loading space 25 of the battery case 4. The battery cover 24 prevents the battery from dropping or slipping when the battery case 4 is inserted into and removed from the battery case storage portion 37. In particular, the battery cover 24 is used to prevent the six stacked AA batteries 5 from dropping out. It is valid. The means for attaching the battery cover 24 to the battery case 4 is not particularly limited. For example, a locking structure that allows the both ends of the battery cover 24 to be engaged with and disengaged from the upper end of the battery case 4 by a locking claw or the like can be considered. Of course, the present invention is not limited to this, and may be rotatable by a hinge, for example. A recess 24 a is provided at the center of the battery cover 24. For example, in the shape in which the operation display protrusion 35 protrudes from the center of the lower end of the operation display section 36 shown in FIG. 10, the battery cover 24 is provided with a recess 24a in a shape that can be adapted to the operation display protrusion 35. The battery case 4 has a structure that does not hinder the insertion and removal.

DESCRIPTION OF SYMBOLS 1 Gas cooker 4 Battery case 5 AA battery 6 Single battery 7 Cooker main body 13 Main body side electrode spring 13A Negative electrode spring 13B Positive electrode spring 14 Single battery connection means 16 AA battery connection means 17 Front terminal mounting plate 18 Rear terminal mounting plate 19 Battery connection terminal 20 Electrode fitting 24 Battery cover 25 Loading space 37 Battery case storage

Claims (1)

A battery case structure that is removably stored in a battery case storage portion provided in a device body that uses a battery,
In the battery case, there is a loading space in which either one or a plurality of single batteries or a plurality of AA batteries can be selectively loaded, and the loading space is parallel to the AA batteries in the polar direction. In a form to be loadable,
When a single battery is loaded, it has a connection means for a single battery that connects the electrode of the single battery to a body side electrode spring located outside the battery case
AA battery connection means for connecting the electrode of the AA battery to the main body side electrode spring when the AA battery is loaded,
The AA battery connection means is composed of a pair of front and rear terminal mounting plates that are arranged in both axial positions of the AA battery facing the loading space,
The terminal mounting plate is provided with an inter-battery connection terminal for electrically connecting AA batteries in series, and an electrode located at the start end and an electrode located at the end of the battery array are connected to the body side electrode spring. A battery case structure comprising electrode fittings individually connected to the positive and negative bipolar springs constituting the.

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