CN205565787U - High voltage battery package fills electric appliance protection device - Google Patents

Abstract

The utility model relates to a high voltage battery package fills electric appliance protection device, including the casing, be equipped with charging loops in the casing, be equipped with on the casing with the communicating inserted sheet that charges of charging loops circuit, its characterized in that still includes from the normally open switch who has the contact shell fragment that is used for controlling self break -make, charging loops is gone into to the normally open switch cluster, normally open switch is from the contact shell fragment in area reveals the contact surface that contacts with the battery on the casing outside, thus it makes normally open switch closed to form to press down to the contact shell fragment when battery inserts. Compare and prior art, the utility model discloses left out solitary shift knob part, not only can realize effectual electric shock protection equally, changeed moreover in design and assembly.

Description

High-voltage battery bag charger protector

Technical field

This utility model relates to one and is applicable on the product such as garden instrument, hand-held tool the charging of lithium electricity battery bag and is made The protection device of charger.

Background technology

Lithium battery is applied more and more widely on garden instrument product, along with increasing of battery bag voltage, right Require more and more higher in the safe handling of high-voltage charger.Traditional high-voltage charger is for exposing gold Belong to the protection of charging inserted sheet, easily user is caused electric shock harm.

In order to solve above-mentioned technical problem, Publication No. CN 204243790, entitled high voltage open in usual electricity Pond bag charger discloses a kind of protection device, and including switch and shift knob, switch seals in high voltage open in usual In the charge circuit of battery bag charger, and maintain a normally open state.When battery is not inserted into charger, owing to opening Pass is in normally open, even if charger has accessed externally fed loop, the charge inside loop of charger is also located In off-state, the sheet metal that therefore charger exposes is not charged, will not damage personnel.When battery is inserted After entering high-voltage battery bag charger open in usual, battery first becomes pressing to switch button-shape, and shift knob is more subsequently By compressing switch so that switch Guan Bi, so that the charge inside loop conducting of charger, thus realize electricity The charging in pond.

Although above-mentioned patent takes certain protective measure to the sheet metal exposed, but its structure is the most multiple Miscellaneous, to ensure the alignment degree between switch and shift knob during assembling, thus ensure that shift knob is at External Force Acting Under switch effectively can be operated.Meanwhile, shift knob is also required to through being specifically designed, and on the one hand ensures Can effectively operate switch after shift knob pressurized, on the other hand be also required to ensure after battery leaves charger, Shift knob can active homing so that switch maintains a normally open state.

Summary of the invention

The purpose of this utility model is to provide effectively touching the enforcement of charger exposed metal sheet of a kind of simple in construction The device of electricity protection.

In order to achieve the above object, the technical solution of the utility model there is provided a kind of high-voltage battery bag charging Device protection device, including housing, is provided with charge circuit in housing, is provided with and charge circuit circuit on housing The charging inserted sheet communicated, it is characterised in that also include carrying the normal of contact flat spring for controlling self break-make Switch, normal open switch seals in charge circuit, and the contact flat spring that normal open switch carries is exposed on housing and battery phase Outside the contact surface of contact, when battery inserts, contact flat spring is formed pressing so that normal open switch closes.

Preferably, described contact surface include bottom surface contact surface that housing contacts with described battery bottom surface and/or with The contacts side surfaces face that described battery side contacts；

The quantity of described normal open switch is at least one, and all described normal open switch all seal in described charge circuit, The contact flat spring of described normal open switch is positioned at bottom surface contact surface and/or contacts side surfaces face.

Preferably, described normal open switch selects the microswitch carrying metal clips.

Comparing and prior art, this utility model eliminates single shift knob parts, the most equally can be real Now effective prevention of electric shock, and it is easier to design and assembling.

Accompanying drawing explanation

Fig. 1 is sectional view of the present utility model；

Fig. 2 is the schematic appearance after this utility model battery inserts；

Fig. 3 is the close-up schematic view of part A in Fig. 2.

Detailed description of the invention

For making this utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.

As it is shown in figure 1, this utility model relates to a kind of high-voltage battery bag charger protector, including housing 1, in housing 1, it is provided with charge circuit, housing 1 is provided with the charging inserted sheet communicated with charge circuit circuit 2.This utility model also includes the normal open switch carrying the contact flat spring for controlling self break-make, in this reality Executing in example, normal open switch selects the microswitch 3 of band metal clips 5.

In conjunction with Fig. 2, in the present embodiment, housing 1 there are three contact surfaces contacted with battery 4, It is respectively a bottom surface contact surface contacted with battery bottom surface and two sides contacted with battery side connect Contacting surface.The metal clips 5 of microswitch 3 can be arranged on contacts side surfaces face, it is also possible to is arranged in bottom surface and connects In contacting surface.The quantity of microswitch 3 can be one, it is also possible to is multiple.When using multiple microswitch 3 Time, the metal clips 5 of its correspondence can all be arranged on a contact surface, it is also possible to is arranged in multiple contact On face.All microswitch 3 are all connected into charge circuit.When using multiple microswitch 3, can be further Improving prevention of electric shock ability, because must be after all microswitch 3 all close, charge circuit just can turn on, and prevents Stop the artificial maloperation of any microswitch 3 is caused to get an electric shock.

In the present embodiment, use a microswitch 3, and the metal clips 5 of this microswitch 3 is exposed to the end Outside the contact surface of face.

In conjunction with 2 and Fig. 3, when battery 4 inserts, the metal clips 5 of microswitch 3 is formed pressing, from And the microswitch 3 being in normally open closes, whole charge circuit turns on, thus realizes battery 4 Charging.And when battery 4 is not inserted into, owing to microswitch 3 is in normally open, charge circuit is not turned on, Now, even if charger is connected with externally fed, the charging inserted sheet 2 exposed also is uncharged, prevents from touching The generation of electricity situation.

Above-described embodiment is preferred embodiment of the present utility model, is not to technical solutions of the utility model Limit, as long as the technical scheme that can realize on the basis of above-described embodiment without creative work, all In the range of should be regarded as falling into the rights protection of this utility model patent.

Claims (3)

1. a high-voltage battery bag charger protector, including housing, is provided with charge circuit in housing, Housing is provided with the charging inserted sheet communicated with charge circuit circuit, it is characterised in that also include having carried for controlling Making the normal open switch of the contact flat spring of self break-make, normal open switch seals in charge circuit, and what normal open switch carried connects Tactile shell fragment is exposed on housing outside the contact surface contacted with battery, battery insert time to contact flat spring formed pressing from And normal open switch is closed.

2. a kind of high-voltage battery bag charger protector as claimed in claim 1, it is characterised in that described Contact surface includes bottom surface contact surface that housing contacts with described battery bottom surface and/or connects with described battery side The contacts side surfaces face touched；

The quantity of described normal open switch is at least one, and all described normal open switch all seal in described charge circuit, The contact flat spring of described normal open switch is positioned at bottom surface contact surface and/or contacts side surfaces face.

3. a kind of high-voltage battery bag charger protector as claimed in claim 1, it is characterised in that described Normal open switch selects the microswitch carrying metal clips.