JPH0543461U - Battery box - Google Patents

Abstract

(57) [Summary] [Purpose] To make a battery box that does not cause heating or contact failure even under conditions where it is susceptible to vibration and shock with large current. A battery box main body 1 for loading a battery for supplying electric power to a moving body, and a good conductive battery receiver 5, 6, 7 mounted on a side surface 1c of the main body 1 and positioned so as to contact a connecting end of the battery. And a second battery receiver 8, 8 of a good conductive thin plate, which is slidably attached to the main body 1 in the battery loading direction and is positioned so as to face the battery receivers 5, 6, 7 so as to contact the connection end of the battery. 'And a second battery receiver 8, 8'and a second side surface portion 1d of the main body 1 facing the side surface portion 1c, and a spring for urging the second battery receiver 8, 8'to the center of the main body. 9, 9 '.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a battery box that is mounted on a toy moving body such as a radio-controlled vehicle and has a battery for supplying electric power to the moving body.

[0002]

[Prior Art]

 Conventionally, a battery box in which dry batteries are loaded has been widely used in daily necessities such as a flashlight and a radio cassette. An example of such a battery box is one that uses a coil spring. The coil spring fixed inside the battery box urges the battery in one direction to fix the battery and uses the conductivity of the coil spring to make an electrical connection. I do. Another example is the use of a leaf spring that acts like a coil spring.

Conventionally, these well-known battery boxes have been adopted also in battery boxes for toys such as wireless steering vehicles.

[0004]

[Problems to be solved by the device]

 However, recently, high performance wireless control vehicles and the like have been desired, so that it has become necessary to supply a large current of 10 A to 15 A or more from a power source.

When the conventional battery box structure is used under such a circumstance, the steel spring is not so good in conductivity that heat is generated by passing a large current, thereby deforming or handling the battery box itself. There is a problem that the person may be burned. Further, the elastic effect due to the annealing effect due to the heating of the spring itself is deteriorated, and the contact failure is caused.

Further, a vehicle such as a radio-controlled vehicle is used in an environment that is more susceptible to deformation due to vibration or impact of the vehicle body. Therefore, a contact failure between the battery and the battery box is caused by vibration or deformation, and heat generation due to this contact failure causes a performance deterioration of the material due to sparks.

Therefore, the conventional battery box structure is effective for a radio-cassette or a flashlight that is used in a static state with a small current, but has a problem that it is not suitable for use in a mobile body such as a radio-controlled vehicle. It was

In view of the above problems, it is an object of the present invention to provide a battery box that does not cause heating or contact failure even when it is susceptible to vibration or shock with a large current.

[0009]

[Means for Solving the Problems]

 In order to achieve such an object, the battery box of the present invention is a battery box to be mounted on a moving body, which is mounted on a side surface portion of a main body of the battery box for mounting a battery for supplying electric power to the moving body. And a good conductive battery receiver positioned to contact the connecting end of the battery, and a slidable mount in the loading direction of the main body and the battery, and positioned to contact the connecting end of the battery facing the battery receiver. A second battery receiver, which is a thin plate having good conductivity, and a spring, which is arranged between the second battery receiver and the second side surface portion facing the side surface portion of the main body, and biases the second battery receiver toward the center of the main body. Prepare

Further, a cut-and-raised portion is provided on the main body along the battery loading direction, and one end of the second battery receiver is inserted into the cut-and-raised portion to electrically connect the second battery receiver to the main body. It is attached so that it can slide freely in the loading direction of the pond.

Further, another battery box of the present invention is a battery box mounted on a mobile body, comprising a battery box main body in which a battery for supplying electric power to the mobile body is loaded, and a battery box mounted on a side surface of the main body. A good conductive battery receiver positioned so as to contact the connection end of the battery, a second battery receiver made of a good conductive thin plate positioned so as to contact the connection end of the battery facing the battery receiver, and the second battery The base is fixed to the back surface of the receiver integrally and is slidably attached to the main body, and the base is attached between the base and the second side surface portion facing the side surface portion of the main body. And a spring for urging.

Further, the base is provided with a pillar extending on the opposite side of the second battery receiver, a cylindrical hole for slidably supporting the pillar is provided in the second side surface portion of the main body, and the spring is provided for the pillar. Surround yourself.

[0013]

[Action]

 In the battery box of the present invention, the electrical connection with the connecting end of the battery is made through the battery receiver, which is a thin plate having good conductivity. As a result, the electric resistance is reduced and it is hard to generate heat. In addition, a spring that biases the battery receiver toward the battery is provided to ensure electrical contact between the battery and the battery receiver. Furthermore, since electricity does not flow through the spring itself, the spring itself is not heated, and the problem of elastic deterioration due to heating does not occur.

Further, since the battery receiver and the main body are slidably attached and the battery receiver is supported by the spring and the main body, the battery box can be manufactured with a small number of parts and man-hours.

Further, when the base is fixed to the back surface of the battery receiver, it can be configured so that it is not easily deformed by impact, and therefore, the good conductive battery receiver has the minimum thickness required for conductivity. Therefore, the cost can be reduced.

[0016]

【Example】

 Hereinafter, a battery box according to the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view showing a first embodiment of a battery box according to the present invention, and FIG. 2 is each sectional view.

The present embodiment is a plastic battery box in which eight AA batteries can be loaded, and two of them are arranged in four rows. In the figure, 1 is a battery box body for receiving a battery. The upper surface of the main body is the cover 1a, and a plurality of grooves 11, 11, ... Formed in the cover 1a are engaged with the corresponding hooks 12, 12 ,. It covers part and the rest forms an opening for inserting the battery. The bottom surface 1b of the main body is provided with a plurality of circular openings 13 so that the battery can be pushed out from below when the battery is taken out, and three rows of partitioning steps 14 for partitioning the row of batteries.

The cover 1a is provided with cut-and-raised parts 2 and 2 ', which are used to slidably support the battery receiver by receiving a protrusion 8a of the battery receiver described later. Similarly, the cut-and-raised parts 3 and 3'for slidably supporting the battery receiving protrusion 8b on the bottom surface 1b (see FIG. 2, but the cut-and-raised part 3 is not visible under the battery). Is provided.

Inside the one side surface 1 c of the battery box body 1, there are attached battery holders 5, 6, 7 having good conductivity and positioned so as to come into contact with a connecting end of the battery. Specifically, the battery receivers 5, 6 and 7 are thin plates made of copper alloy or the like. The battery receivers 5, 6 and 7 are fixed by being sandwiched by the hook portions 4 and 4 which protrude inside the side surface 1c. The battery receivers 5 and 7 extend along the outside of the main body from the gaps formed in the corners of the main body 1, and supply electric power to the outside as + and-terminals, respectively.

On the other hand, on the side surface 1d side facing the side surface 1c, battery receivers 8 and 8'having good conductivity are also positioned so as to contact the connection end of the battery. Each of the battery receivers 8 and 8'is a thin plate having a U-shaped cross section, and has projecting portions 8a, 8b, 8a 'and 8b' which are vertically bent at right angles. These protrusions are inserted into the cut-and-raised parts 2, 2 ', 3, 3'described above.

Coil springs 9 and 9 ′ are arranged between the battery receivers 8 and 8 ′ and the side surface 1 d to urge the battery receivers 8 and 8 ′ in the direction of the side surface 1 c to move the battery inside the battery box body 1. And secure the electrical contact between the battery and the battery receiver 5, 6, 7, 8, 8 '. Further, a convex portion is formed at a contact portion of each battery receiver 5, 6, 7, 8, 8'with the battery in order to ensure each contact. In this embodiment, a conical coil spring is used to allow a large stroke of the spring.

In this embodiment, eight batteries arranged in four rows of two batteries are loaded in the box in series connection. When inserting, arrange the batteries so that the directions of the batteries in each row are opposite to each other. The battery receivers 8 and 8'are pushed in the direction of the side face 1d by the inserted battery and oppose the biasing force of the springs 9 and 9 '. Further, the protruding portions 8a, 8a ', 8b, 8b' of the battery receivers 8, 8'slide in the cut-and-raised portions 2, 2 ', 3, 3'. When all eight batteries are inserted, electrical connection is established from the battery receiver 5 through the battery receiver 8, the battery receiver 6, the battery receiver 8 ′, and the battery receiver 7.

In this embodiment, since a thin plate having good conductivity is used for connection with the battery, even if a large current flows, the resistance is small and heat generation can be suppressed. Further, since no current flows through the spring 9 having a large resistance, it is possible to prevent the performance of the spring itself from being deteriorated.

Although the coil spring is used as the spring in this embodiment, the battery receivers 8 and 8'may be biased by the leaf spring 9 "as partially shown in FIG.

Next, an overall perspective view showing a second embodiment of a battery box according to the present invention is shown in FIG. 4, an exploded perspective view thereof is shown in FIG. 5, and respective cross-sectional views are shown in FIG. In the second embodiment, the base is fixed to the back surface of the battery receiver, and the base is slidably supported between the base and the main body.

In the figure, reference numeral 21 denotes a battery box body into which four AA batteries can be loaded. Two covers 21a and 21b are provided on the left and right of the upper surface of the body, and the center of the top surface is an opening for inserting a battery. Is becoming

Inside the one side surface 21 c of the battery box main body 21, there are attached battery holders 25, 26, 27 having good conductivity and positioned so as to come into contact with the connection end of the battery. Specifically, the battery receivers 25, 26, 27 are thin plates made of copper alloy or the like. The respective battery receivers 25, 26, 27 are fixed by being sandwiched between the hook portions 23 formed inside the side surface 1c. Further, one ends of the battery receivers 25 and 27 extend to the back surface of the hook portion 23, and electric power is supplied to the outside from an opening provided at the center of the side surface 1c as a + terminal and a-terminal.

On the other hand, on the side surface 21d side opposite to the side surface 21c, battery receivers 28, 28 'made of thin plates having good conductivity are also positioned so as to come into contact with the connection end of the battery. Bases 29 and 29 'are fixed to the back surfaces of the battery receivers 28 and 28' integrally with the battery receivers 28 and 28 '. The fixing method may be screwing or adhesive bonding. The base 29 is made of plastic and has a pillar 29a and an auxiliary pillar 29b extending from the surface opposite to the battery receiver 28 in the longitudinal direction of the battery box. The pillar 29a and the auxiliary pillar 29b are slidably inserted into the cylindrical holes 31 and 32 formed in the side surface 21d. The cylindrical hole 31 is made up of a portion whose diameter is substantially the same as the diameter of the support column 29a and a portion whose diameter is widened by the amount that the spring described later surrounds the support column 29a. By providing not only the support column 29a but also the auxiliary support column 29b, the base 29 and the battery receiver 28 can be kept parallel to the side surface 1d.

Coil springs 30 and 30 ′ are arranged around the columns 29 a and 29 a ′ to urge the battery receivers 28 and 28 ′ and the bases 29 and 29 ′ toward the side surface 21 c to move the batteries to the battery box body 21. And secure electrical contact between the battery and the battery receiver 25, 26, 27, 28, 28 '. In addition, a convex portion is formed at a contact portion of each battery receiver 25, 26, 27, 28, 28 'with the battery in order to ensure each contact. A stopper 33 for limiting the displacement of the base in the direction of the side surface 21c by the spring 30 is provided on the bottom surface 21e.

In the present embodiment, four batteries arranged in four rows one by one are loaded in the box in series connection. When loading the batteries, arrange the batteries so that the directions of the batteries in each column are opposite to each other. The battery receivers 28, 28 'are pushed toward the side surface 21d by the inserted battery and oppose the biasing force of the springs 30, 30'. Further, the column 29a and the auxiliary column 29b slide. When all four batteries are inserted, electrical connection is established from the battery receiver 25 via the battery receiver 28, the battery receiver 26, the battery receiver 28 ′, and the battery receiver 27.

Also in this embodiment, the same effect as that of the first embodiment can be obtained. Further, in this embodiment, since the thin plate is supported by the base, it is possible to suppress the deformation of the battery receiver even with an impact. Therefore, the good conductivity battery receiver can be made as thin as the minimum necessary for conductivity, and the cost can be further reduced.

[0032]

[Effect of the device]

 As described above, according to the present invention, the electrical contact with the connection end of the battery to be loaded is performed through the battery receiver, which is a thin plate having good conductivity, so the electrical resistance is reduced and heat generation is suppressed. be able to. Further, since the thin plate conductive material is used, the cost can be suppressed.

Further, since a spring for urging this battery cell of good conductivity toward the center of the battery box is provided on the back surface of the battery box, the battery is securely fixed in the battery box and the battery and the battery box are secured. It is possible to maintain good electrical contact between them at all times, and it is possible to sufficiently cope with some battery errors. Moreover, since no current flows through the spring, it is possible to prevent the performance of the spring itself from deteriorating.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a battery box of the present invention.

FIG. 2 is a cross-sectional view of the first embodiment.

FIG. 3 is a partial perspective view showing a modified example of the first embodiment.

FIG. 4 is an overall perspective view showing a second embodiment of the battery box of the present invention.

FIG. 5 is an exploded perspective view of the second embodiment.

FIG. 6 is a cross-sectional view of a second embodiment.

[Explanation of symbols]

 1, 21 Main body 5, 6, 7, 25, 26, 27, Battery receiver 8, 8 ', 28, 28' Second battery receiver 9, 9 ', 30, 30' Spring 2, 2 ', 3, 3' Cut-and-raised part 29, 29 'Base 29a, 29a' Strut

Claims (4)

[Scope of utility model registration request] 1. A battery box to be mounted on a moving body, the battery box main body having a battery for supplying electric power to the moving body, and a side surface of the main body, which is positioned so as to come into contact with a connecting end of the battery. A good conductive battery receiver, and a second battery receiver made of a good conductive thin plate that is slidably mounted in the main body and battery loading direction and is positioned so as to face the battery receiver and contact the connection end of the battery. A battery box, comprising: a spring disposed between a second battery receiver and a second side surface portion facing the side surface portion of the main body, for urging the second battery receiver toward the center of the main body. 2. The battery box according to claim 1, wherein:
A cut-and-raised portion is provided in the main body along the battery loading direction, and one end of the second battery receiver is inserted into the cut-and-raised portion to slide the second battery receiver in the main-body and battery loading direction. Battery box characterized by being movably attached. 3. A battery box mounted on a moving body, the battery box main body having a battery for supplying electric power to the moving body, and a battery box mounted on a side surface of the main body and positioned so as to contact a connecting end of the battery. A good conductive battery receiver, a second battery receiver of a good conductive thin plate positioned so as to contact the battery connecting end facing the battery receiver, and integrally fixed to the back surface of the second battery receiver, A main body slidably attached to the main body; and a spring arranged between the base and a second side surface portion facing the side surface portion of the main body to urge the base toward the center of the main body. Battery box. 4. The battery box according to claim 3, wherein
The base has a pillar extending on the opposite side of the second battery receiver, a cylindrical hole for slidably supporting the pillar is provided on the second side surface portion of the main body, and the spring surrounds the pillar. Characteristic battery box.