CN211428966U

CN211428966U - Safety vehicle-mounted charger

Info

Publication number: CN211428966U
Application number: CN202020330840.5U
Authority: CN
Inventors: 张磊; 王亚达; 张志坚
Original assignee: Changzhou Mingxin Electronic Technology Co ltd
Current assignee: Changzhou Mingxin Electronic Technology Co ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-09-04
Anticipated expiration: 2030-03-16

Abstract

The utility model relates to an on-vehicle charger of safe type, it relates to the technical field of on-vehicle charger, and it includes charger body, charger body is including charging head, plug and the charging wire of connecting charging head and plug, the charging wire includes primary line and secondary line, primary line includes the one-level crust of live wire and parcel live wire, the secondary line includes the second grade crust of bond wire and parcel bond wire, be connected with the insurance subassembly on the primary line, the insurance subassembly include with the fuse that the live wire is connected. Keep away from the first setting that charges with the fuse subassembly, to the influence of the head that charges when reducing the fuse fusing, the utility model discloses the effect that has extension charger body life-span.

Description

Safety vehicle-mounted charger

Technical Field

The utility model belongs to the technical field of the technique of on-vehicle charger and specifically relates to a safe type on-vehicle charger is related to.

Background

With the development of the automobile industry, the vehicle-mounted charger is widely applied, and has the characteristics of multifunction, portability and fashion. The vehicle-mounted charger is a vehicle-mounted charger which is powered by a conventional automobile storage battery and is widely used in the field of lithium battery charging of various portable and handheld devices.

The publication number is CN208754034U Chinese patent and discloses a safe vehicle-mounted charger of fuse can be dismantled to outside, the charger main part, be provided with the fuse in the charger main part, fuse and charger main part joint, the confession has been seted up in the charger main part the draw-in groove of fuse joint has the safe vehicle-mounted charger that can directly change former car fuse from the outside, through be provided with the fuse in the charger main part, fuse and charger main part joint adopt the design of outside detachable fuse, make the installation use more convenient, and what chooseed for use is former car fuse, and the security is higher, and the life-span is longer.

The above prior art solutions have the following drawbacks: charger body fuse when the old damage condition appears, can resume the use through the replacement fuse, but the fuse is installed in charging the head, use the on-vehicle charger in-process, the first inside charging element that charges generates heat because of the use easily, when the short circuit appears simultaneously, during the condition such as overload, the fuse on the on-vehicle charger blows for the protection circuit, the temperature that the fuse blows in-process production combines together with the charging element condition of generating heat, make the first inside charging element that charges and the first shell that charges the damaged condition appear easily, thereby make the on-vehicle charger can't only be through the mode of changing the fuse, resume the use.

SUMMERY OF THE UTILITY MODEL

According to the not enough of prior art existence, the utility model aims at providing an on-vehicle charger of safe type keeps away from the first setting that charges with the insurance subassembly, to the influence of the head that charges when reducing the fuse fusing, has the effect in extension charger body life-span.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides an on-vehicle charger of safe type, includes charger body, charger body is including charging head, plug and the charging wire of connecting charging head and plug, the charging wire includes primary line and secondary line, primary line includes the one-level crust of live wire and parcel live wire, the secondary line includes the secondary crust of bond strap and parcel bond strap, be connected with the insurance subassembly on the primary line, the insurance subassembly include with the fuse that the live wire is connected.

Through adopting above-mentioned technical scheme, the fuse direct mount is in charging the head, and when the condition such as short circuit appears in the charger body, the fuse-element fusing of fuse probably harms the condition of the first interior electric component of charging and the first shell that charges. Through keeping away from the first setting that charges with the fuse subassembly, install it on the line that charges, when reducing the fuse fusing, damage the first condition that charges to directly change behind the fuse, charger body can continue to use.

The present invention may be further configured in a preferred embodiment as: the fuse assembly further comprises a fuse shell connected with the first-stage outer skin, the fuse shell comprises a fuse bottom shell connected with the first-stage outer skin and a fuse cover detachably connected with the fuse bottom shell, and the fuse is located in the fuse shell.

Through adopting above-mentioned technical scheme, the fuse shell plays the effect of protection fuse to avoid fuse and live wire tie point to expose in the air.

The present invention may be further configured in a preferred embodiment as: the fuse comprises a primary end and a secondary end, the primary end is inserted into the fuse bottom shell and connected with the live wire, and when the fuse cover covers the fuse bottom shell, the secondary end is located in the fuse cover.

By adopting the technical scheme, the primary end is inserted in the safety bottom shell, when the safety cover of the safety shell is opened, the secondary end positioned in the safety cover is exposed, and the primary end part inserted in the safety bottom shell can be pulled out through the secondary end. The mode that the fuse was installed in the fuse shell, the charger body of being convenient for damage is replaced.

The present invention may be further configured in a preferred embodiment as: the safety bottom shell with the safety cover joint, the safety bottom shell includes the connector, the connector is equipped with outward along the card strip that connector surface circumference set up, the safety cover is including supplying the block that the second grade end was pegged graft and with the lid that the connector is connected, be equipped with in the lid with the recess that the card strip suited.

Through adopting above-mentioned technical scheme, the setting of card strip and safety cover inner groovy on the safety drain pan connector realizes that safety cover and safety drain pan carry out the joint, conveniently produces and sees the fuse or change the fuse. The primary end is connected with the fuse bottom shell in an inserting mode, the secondary end is connected with the fuse cover in a clamping mode, the fuse fixing effect is achieved, the position looseness of the fuse is reduced, and the connection point of the fuse is disconnected with a live wire.

The present invention may be further configured in a preferred embodiment as: and a wiring is connected between the safety cover and the safety bottom shell.

Through adopting above-mentioned technical scheme, do not have the wiring between insurance drain pan and the insurance lid, when the insurance lid takes off, the insurance lid loses easily, is connected insurance drain pan and insurance lid through the wiring, reduces the circumstances that the insurance lid lost of taking off.

The present invention may be further configured in a preferred embodiment as: the safety bottom shell is hinged to the safety cover, a torsion spring is arranged at the hinged position of the safety bottom shell and the safety cover, a bounce lock is arranged between the safety cover and the safety bottom shell, and the bounce lock is symmetrically arranged at the hinged position of the safety bottom shell and the safety cover according to the diameter of the safety cover.

Through adopting above-mentioned technical scheme, torsional spring and spring lock phase combine, when needs open the safety cover, through pressing the spring lock, open the safety cover, the mode of opening is fairly simple.

The present invention may be further configured in a preferred embodiment as: and when the safety cover covers the safety bottom shell, the abutting block abuts against the secondary end.

By adopting the technical scheme, the fuse is compressed in the fuse shell by the abutting block, so that the condition that the wiring point of the fuse is disconnected with a live wire in the use process of the charger body is reduced.

The present invention may be further configured in a preferred embodiment as: and anti-skid grains are arranged on the outer surfaces of the safety cover and the safety bottom shell.

Through adopting above-mentioned technical scheme, anti-skidding line plays the frictional force that increases hand and insurance shell, provides convenience for taking off and covering the insurance lid.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the safety component is arranged far away from the charging head through the arrangement of the position of the safety component, so that the influence on the charging head when the fuse is fused is reduced, and the effect of prolonging the service life of the charger body can be achieved;

2. through the arrangement of splicing the fuse and the fuse shell, the effect of conveniently replacing the fuse can be achieved.

Drawings

Fig. 1 is a schematic view of an overall structure of an in-vehicle charger in embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of the insurance module according to embodiment 1 of the present invention.

Fig. 3 is a schematic view of the overall structure of the vehicle-mounted charger in embodiment 2 of the present invention.

Fig. 4 is a schematic structural diagram of the insurance module according to embodiment 2 of the present invention.

In the figure, 1, a charger body; 11. a charging head; 12. a plug; 2. a first level line; 21. a live line; 22. a first-stage outer skin; 3. a secondary line; 31. bonding wires; 32. secondary outer skin; 4. a fuse assembly; 41. a fuse; 42. a primary end; 43. a secondary terminal; 5. a fuse housing; 51. a safety bottom shell; 52. a safety cover; 6. a connector; 61. clamping the strip; 62. capping; 63. a cover body; 64. wiring; 65. anti-skid lines; 7. a torsion spring; 71. a bounce lock; 72. and (6) butting against blocks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

referring to fig. 1 and 2, the utility model discloses a safe type vehicle-mounted charger, including charger body 1. On-vehicle charger is used for the car to external equipment charges and uses, charger body 1 includes the head 11 that charges of being connected with the cigar lighter of car, and in this embodiment, charger body 1 is used for the taxi, and the pilot lamp that is the taxi top through charger body 1 lasts the power supply, and charger body 1 still includes the plug 12 of being connected with the pilot lamp and the charging wire of being connected head 11 and plug 12 that charges. The charging wire comprises a live wire 21 and a bond wire 31, the live wire 21 is wrapped by a primary sheath 22 to form a primary wire 2, the bond wire 31 is wrapped by a secondary sheath 32 to form a secondary wire 3, and the primary wire 2 is connected with a safety assembly 4. The fuse assembly 4 comprises a fuse housing 5 connected with the primary wire 2 and a fuse 41 connected with the live wire 21, when the charger body 1 is in a use state, the current of the whole line is abnormally increased to a certain height and heat, and when the temperature is increased to be higher than the melting point of the melt of the fuse 41, the melt of the fuse 41 is fused, so that the function of protecting the safe operation of the circuit is achieved. If the fuse 41 is directly installed in the charging head 11, the fuse 41 damages the charging head 11 when the fuse 41 melts, and meanwhile, when the heat dissipation effect of the charging head 11 is poor and the fuse 41 adopts an over-temperature protection type, the fuse 41 melts easily and often. Fuse component 4 is far away from charging head 11 and sets up, reduces the condition that damages charging head 11 when fuse 41 fuses, also plays the effect of protection fuse 41. The position that first grade line 2 set up insurance subassembly 4 separates with second grade line 3, and the remaining place of first grade line 2 is connected with second grade line 3, reduces the mixed and disorderly condition of circuit.

Referring to fig. 1 and 2, the fuse 41 includes a primary end 42 and a secondary end 43, the primary end 42 is two antennae connected to the live wire 21, the protective casing includes a protective bottom shell 51 and a protective cover 52, and the protective bottom shell 51 includes a connecting end connected to the primary sheath 22 and a jack for inserting the primary end 42. The two jacks of the fuse bottom shell 51 are respectively communicated with the two connecting ends, and the end of the live wire 21 connected with the primary end 42 of the fuse 41 extends into the two jacks. When the first-order end 42 of the fuse 41 is inserted into the jack, the two antennae are excessively matched with the jack, so that the fuse 41 is tightly connected with the fuse bottom shell 51, and meanwhile, the first-order end 42 and the live wire 21 are connected to form stable connection. The safety bottom shell 51 further comprises a connecting head 6, a clamping strip 61 is arranged on the outer wall of the connecting head 6, the safety cover 52 comprises a cover body 63 and a cover cap 62, a groove for clamping the clamping strip 61 is formed in the cover body 63, when the safety cover 52 covers the protection cover, the connecting head 6 of the safety bottom shell 51 is located in the cover body 63, the clamping strip 61 of the connecting head 6 is clamped in the groove of the cover body 63, the second-stage end 43 of the fuse 41 is inserted into the cover cap 62, and the safety cover 52 and the safety bottom shell 51 are clamped. The cover 63 of the safety cover 52 is over-fitted with the connector 6 of the safety bottom case 51, so that the safety cover 52 can be prevented from falling off by itself. The outer surfaces of the safety cover 52 and the safety bottom shell 51 are provided with anti-slip threads 65, so that when a user takes the safety cover 52 off the safety bottom shell 51, the friction between the hand of the user and the outside of the safety cover 52 is large, and the user can take the safety cover 52 off the safety bottom shell 51 conveniently. The safety cover 52 is easy to lose after being taken down from the safety bottom case 51, the connection wire 64 is connected between the connection end of the safety bottom case 51 and the safety cover 52, the situation that the safety cover 52 is lost is reduced, and the length of the connection wire 64 needs to reach a certain length so that the safety cover 52 can be taken down from the safety bottom case 51. The protective shell is made of high-temperature-resistant materials, so that the situation that the protective shell is damaged and even the charging wire 21 is damaged due to the fact that the temperature reaches the melting point of the protective shell when the fuse 41 is fused is reduced.

The implementation principle of the above embodiment is as follows: when the charger body 1 is used, the charging head 11 is inserted into a cigarette lighter of an automobile, so that electricity of an automobile storage battery can be conveyed through the charger body 1, and the plug 12 is inserted into a jack of corresponding external equipment needing power supply to be charged for use. In the using process, when the short circuit occurs in the circuit and the fuse 41 melts, the charger body 1 is taken down, and the fuse cover 52 is opened to replace the fuse 41. When the fuse 41 is taken out after the cover is opened, the fuse cover 52 clamped on the fuse bottom shell 51 is directly pulled out by force, and the damaged fuse 41 is pulled out from the fuse bottom shell 51 by force.

Example 2: example 2 differs from example 1 in that: referring to fig. 3 and 4, the volume of the inner cavity space of the safety cover 52 is greater than the volume of the whole secondary end 43 of the fuse 41, the safety cover 52 is hinged to the safety bottom case 51, a torsion spring 7 is arranged at the position where the safety bottom case 51 is hinged to the safety cover 52, a bounce lock 71 is arranged between the safety cover 52 and the safety bottom case 51, the safety cover 52 and the safety bottom case 51 are locked by the bounce lock 71, the bounce lock 71 comprises a button arranged on a protection box, an elastic member is connected between the button and the protection box, the button and the protection box are connected by the elastic member, the bounce lock 71 further comprises a buckle and a fixture block respectively arranged on the button and the safety cover 52, when the bounce lock 71 is in a locked state, the buckle is clamped with the fixture strip 61, the buckle is separated from the fixture block by pressing the position where the elastic member is arranged on the button. The safety cover 52 is relatively simple to open and requires no effort to open. The protection cover is internally provided with a resisting block 72, when the protection cover covers the protection box, the end part of the secondary end 43 of the fuse 41 is tightly attached to the resisting block 72, so that the position of the fuse 41 is fixed, and the displacement of the position of the fuse 41 is reduced, so that the primary end 42 of the fuse 41 is prevented from being disconnected with the live wire 21.

The implementation principle of the above embodiment is as follows: when the fuse is replaced, the button of the bounce lock is pressed, so that the buckle and the clamping block of the bounce lock are separated, the fuse cover bounces off under the action of the torsion spring, the fuse in the fuse bottom shell is pulled out forcefully, the primary end of a new fuse is inserted into the fuse bottom shell, the fuse cover is covered, and the installation of the fuse is completed.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an on-vehicle charger of safe type, includes charger body (1), charger body (1) is including charging head (11), plug (12) and connecting the charging wire that charges head (11) and plug (12), its characterized in that: the charging wire includes primary line (2) and secondary line (3), primary line (2) include live wire (21) and be used for wrapping up one-level crust (22) of live wire (21), secondary line (3) are including bonding wire (31) and secondary crust (32) of parcel bonding wire (31), be connected with fuse subassembly (4) on primary line (2), fuse subassembly (4) include with fuse (41) that live wire (21) are connected.

2. The safety vehicle-mounted charger according to claim 1, wherein: the fuse assembly (4) further comprises a fuse shell (5) connected with the first-level outer skin (22), the fuse shell (5) comprises a fuse bottom shell (51) connected with the first-level outer skin (22) and a fuse cover (52) detachably connected with the fuse bottom shell (51), and the fuse (41) is located in the fuse shell (5).

3. The safety vehicle-mounted charger according to claim 2, wherein: the fuse (41) comprises a primary end (42) and a secondary end (43), the primary end (42) is inserted into the fuse bottom shell (51) and connected with the live wire (21), and when the fuse cover (52) covers the fuse bottom shell (51), the secondary end (43) is located in the fuse cover (52).

4. A safety vehicle charger according to claim 3, characterized in that: insurance drain pan (51) with insurance lid (52) joint, insurance drain pan (51) are including connector (6), connector (6) are equipped with the edge outward card strip (61) that connector (6) surface circumference set up, insurance lid (52) are including supplying cap (62) that second grade end (43) are pegged graft and with lid (63) that connector (6) are connected, be equipped with in lid (63) with the recess that card strip (61) are fit for.

5. The safety vehicle-mounted charger according to claim 4, wherein: and a wiring (64) is connected between the safety cover (52) and the safety bottom shell (51).

6. A safety vehicle charger according to claim 3, characterized in that: insurance drain pan (51) with insurance lid (52) are articulated, insurance drain pan (51) with insurance lid (52) articulated position is equipped with torsional spring (7), insurance lid (52) with be equipped with spring lock (71) between insurance drain pan (51), spring lock (71) with insurance drain pan (51) with insurance lid (52) articulated position with the diameter symmetry setting of insurance lid (52).

7. The safety vehicle-mounted charger according to claim 6, wherein: a butting block (72) is arranged in the safety cover (52), and when the safety cover (52) covers the safety bottom shell (51), the butting block (72) is butted with the secondary end (43).

8. The safety vehicle-mounted charger according to claim 7, wherein: the outer surfaces of the safety cover (52) and the safety bottom shell (51) are provided with anti-skid grains (65).