CN2074491U

CN2074491U - Pocket recorder

Info

Publication number: CN2074491U
Application number: CN 90222865
Authority: CN
Inventors: 付文杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-10-31
Filing date: 1990-10-31
Publication date: 1991-04-03

Abstract

The utility model relates to a technical proposal relating to the power structure of a pocket radio recorder, and is proposed by aiming at that the electric capacity of the battery power of the existing pocket radio recorder is small, so the existing pocket radio recorder is expensive for users to use, and also direct current power is inconvenient to be used or can be used in some situations. The radio recorder of the utility model comprises two battery powers, wherein, the main power is composed of an R6 type battery, and is arranged on the inner part of a main machine body to be combined with the main machine to form an entirety; the secondary power is composed of an R14 or R20 type battery, is arranged on the outer part of the main machine, can also be combined with the main machine to form an entirety or be separated from the main machine. The secondary power can be adopted when direct current power is inconvenient to be used or can not be used in the process of using.

Description

Pocket recorder

The present invention is relevant a kind of pocket radio cassette player, furthermore is the technical scheme of relevant this radio-recorder power structure, and said radio cassette player comprises walkman, radio and tape player and radio cassette player.

In the prior art, the power supply of above-mentioned radio cassette player comprises a battery supply, perhaps also comprises direct supply.For making the radio cassette player volume little in light weight, battery supply is made up of R6 type battery, and this battery supply electric capacity is little, and serviceable life is short, uses uneconomical.Above-mentioned for this reason general radio cassette player all is furnished with direct supply, but direct supply can only have alternating current and necessary device (for example supply socket) Shi Caineng to work, moreover, using DC power supply also can make troubles to the user in some cases, for example direct supply can limit user's scope of activities when using earphone.In a word, deficiency of the prior art has been brought economically and the inconvenience of using to the user.

Task of the present invention is to provide a kind of pocket radio cassette player, and in the time can not using direct supply or use direct supply inconvenient, the user still can use it economical, easily, and radio cassette player still can have the little lightweight advantage of volume when needed.

For realizing above-mentioned task, the solution that the present invention adopts is: the power unit of radio cassette player comprises two battery supplies, and one of them is made up of R6 type battery, is an integral body in main body inside and main frame, can not separate with main frame, is called primary power; Another is made up of big batteries of electric capacity such as R14 type or R20 types, comprise the box (described box comprises that other play the analog of same function) that above-mentioned battery is installed,, can be combined into as a whole with main frame in the main body outside, also can separate, be called auxiliary power.Major and minor power supply all can be the main frame power supply independently.Auxiliary power and main frame can be combined into as a whole in several ways, for example, can directly make up by mutual grafting, butt joint, clamping modes such as (perhaps comprise and utilize various web members).

Auxiliary power can be finished by lead, plug and socket with the electrical link between the main frame, perhaps on both sides' combination end face (both sides are combined into the end face that is in contact with one another when as a whole), contact terminal and major-minor power change-over switch are set, when both sides are combined into when as a whole, contact terminal is connected, auxiliary power is connected with main frame, change-over switch action simultaneously disconnects primary power, finishes electrical link.

For further improving the utilization factor of battery, prolong its serviceable life, adopting battery boosting technology is the auxiliary power charging, and method is that auxiliary power is connected in parallel with direct supply, and direct supply also can charge for auxiliary power in for the radio cassette player power supply.Except that rechargeable battery, alkali manganese dry cell etc., general paste formula manganese dry cell also can be increased operation rate by charging to a certain extent, but the cardboard manganese dry cell can not charge.Therefore charging option switch to be set in charge circuit, in order to the auxiliary power of being made up of different classes of battery is selectively charged.The dry cell that produces (especially R14 and R20 type) is most of at present owing to China is paste battery, and the battery that auxiliary power adopts will mainly be this type battery, and the charging technique of the present invention's employing is primarily aimed at paste battery for this reason.Direct supply has certain constant-voltage characteristic in the above-mentioned charging technique, the good more charging effect of constant-voltage characteristic is good more, the charging voltage span is 1.05n-1.35n a times of monomer battery voltage nominal value, and optimum range is 1.10n-1.25n times, and n is the number of cell in the battery supply.

Because above-mentioned solution has adopted two battery supplies, auxiliary power is made up of the big battery of electric capacity, and can be synthetic as a whole with host groups, therefore in the time can not using direct supply or use direct supply inconvenient, adopt the auxiliary power power supply, economical and be easy to use; On the other hand, auxiliary power can separate with exchange, like this, auxiliary power is taken off adopt the primary power power supply where necessary, and radio cassette player still has the little lightweight advantage of volume; Owing to can therefore can further improve the utilization factor of battery, prolong its serviceable life again for auxiliary power charges.

The invention will be further described below in conjunction with drawings and Examples.

Fig. 1 is that auxiliary power is with the synthetic as a whole synoptic diagram of host groups.

Fig. 2 is the synoptic diagram of the combination end face of auxiliary power and main frame.

Fig. 3 is the electrical equipment catenation principle block diagram between primary power, auxiliary power, direct supply and the main frame.

Shown in Figure 1, auxiliary power 11 is combined into as a whole with main frame 15, and direct current jack 12 and charging option switch 13 are arranged on the auxiliary power.

Shown in Figure 2, on the combination end face of auxiliary power 21 contact terminal 22 is arranged, contact terminal 26, major-minor power change-over switch 27, direct current jack 28 are arranged on the combination end face of main frame 25, wherein change-over switch 27 is a push-button switch.When auxiliary power was synthetic as a whole with host groups, the button of change-over switch 27 was pressed into, and primary power disconnects; Contact terminal 22 is connected with 26, and auxiliary power is connected with main frame; Jack 28 is covered by auxiliary power, if use DC power supply, can adopt the direct current jack on the auxiliary power in this case.

Shown in Figure 3, primary power 31 is connected with main frame 34 through direct current jack 51, major-minor power change-over switch 41 and host work switch 43.The attaching plug of direct supply 33 can insert in jack 51 or 52, before direct supply inserts, contact 61 on the jack and 62 is connected, all the

other contacts

61 and 63 and 62 and 63 disconnect, after direct supply inserts, contact 62 on the jack (be inserted in 51 or 52) and 63 is connected, all the

other contacts

61 and 62 and 61 and 63 disconnections.Auxiliary power 32 can connect with direct supply 33 by jack 52, and charging option switch 42 is connected between the

contact

61 and 63 on the jack 52.Synthetic when as a whole with host groups when auxiliary power, change-over switch 41 disconnects, and auxiliary power is connected with main frame with 72 through the tie point 71 of contact terminal.Dotted line represents that this circuit is non-existent in some cases among the figure, and these situations are meant that direct supply does not insert jack and auxiliary power is synthetic not as a whole with host groups.

Claims

1, a kind of pocket radio cassette player, its power unit comprises battery supply, perhaps also comprises direct supply, it is characterized in that described battery supply has two, wherein:

Primary power is made up of R6 type battery, is an integral body in main body inside and main frame;

Auxiliary power is made up of R14 type or R20 type battery, comprises the box that above-mentioned battery is installed, and in the main body outside, can be combined into as a wholely with main frame, also can separate.

2, by the described radio cassette player of claim 1, it is characterized in that auxiliary power with the direct supply parallel connection, direct supply also can have charging option switch for auxiliary power charges in above-mentioned charge circuit in for the radio cassette player power supply.