CN116392377A - A Reverse Chargeable Fascia Gun - Google Patents

Abstract

The invention discloses a reverse-chargeable fascia gun, which includes a fascia gun body, a charging line, and a power adapter. The charging and discharging circuit in the casing; the power adapter has a second jack, and the charging line is used to connect the first jack and the second jack; the first jack and the second jack are both suitable for USB universal plugs , and there are grooves on the walls of the first jack and the second jack; both ends of the charging cable have plugs; the grooves are used to fit the plugs, and the plugs Protrusions are provided at positions corresponding to the grooves on the component, and the charging and discharging circuit cooperates with the plug connector or the USB universal plug to form a charging or discharging state. The invention has a safer charging interface, can provide required voltage and power when charging, and provide safe voltage and power to power external devices when discharging.

Description

A Reverse Chargeable Fascia Gun

technical field

The invention relates to a fascia gun, in particular to a reverse-chargeable fascia gun.

Background technique

At present, the design of fascia guns tends to be portable, and some models of fascia guns can be carried with you, so that users can relax muscles at any time during outdoor activities. For example, when walking for a long time such as shopping, the leg muscles will be in a state of fatigue. The fascia gun carried with you can relax the muscles and help relieve muscle fatigue.

Moreover, there is an energy storage component inside the fascia gun, which can be used to store electrical energy. If the stored electrical energy can be used for reverse discharge, it can be used to supply power to external electrical equipment such as mobile phones. The burden of carrying a power bank.

However, the following situations currently exist:

The voltage of the USB output terminal is generally 5v, and the charging input interface of the fascia gun is 16.8V, 1A according to the international CQC small appliance certification standard, while the domestic general electric fascia gun uses a charger of 25.2V, 1A, universal 12V, 12.6V , 16.8V, 24V and other electric tools, so the voltage of the charging input terminal is much higher than that of the USB output terminal. If the supporting charging parts are used in other devices by mistake, there is a possibility of capacitor breakdown to the USB, or even burning Potential safety hazards of damaging other components.

Contents of the invention

Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a reverse-chargeable fascia gun with a safer charging interface, which can provide the required voltage and power when charging, and provide safe voltage and power when discharging. Power to supply power to external devices.

In order to achieve the above object, the present invention provides the following technical solution: a reverse-chargeable fascia gun, including a fascia gun body, a charging cable, and a power adapter, the fascia gun body includes a housing, and is arranged on the housing. The first jack on the top, the charging and discharging circuit set in the casing; the power adapter has a second jack, and the charging line is used to connect the first jack and the second jack; the first jack Both the first jack and the second jack are suitable for USB universal plugs, and there are grooves on the walls of the first jack and the second jack; both ends of the charging line have plugs; the grooves are used for It is suitable for the connector, and the position corresponding to the groove is provided with a protrusion on the connector, and the charging and discharging circuit cooperates with the connector or the USB universal plug to form a charging or discharging state.

As a further improvement of the present invention, a button is provided on the housing and the power adapter at positions corresponding to the first jack and the second jack, and the button is used to switch the charging and discharging of the charging and discharging circuit, and the button is connected with the The protrusions of the connector are matched, and when the protrusion of the connector is inserted into the first jack or the second jack, the protrusion presses the button.

As a further improvement of the present invention, shrapnels are provided at positions corresponding to the first jack and the second jack in the housing and the power adapter respectively, at least a part of the shrapnel corresponds to the groove, and the socket is connected with the socket. Inserted into the first jack or the second jack, the protrusion pushes up the elastic piece, and presses the button through the elastic piece.

As a further improvement of the present invention, the number of the grooves is at least two, and they are distributed on both sides of the key, and the position of the socket corresponding to the grooves is provided with protrusions.

As a further improvement of the present invention, the position of the elastic piece corresponds to one side wall of the first insertion hole or the second insertion hole, and the two grooves on the first insertion hole or the second insertion hole are located on the wall of the side hole.

As a further improvement of the present invention, the part of the elastic piece corresponding to the groove is set as a bent part in a bent state, and the bent part is used to abut against the protrusion of the socket.

As a further improvement of the present invention, the side of the protrusion corresponding to the first insertion hole or the second insertion hole is provided as a slope, and the end of the protrusion used to push up the elastic piece forms an obtuse angle with the slope.

As a further improvement of the present invention, the protrusion is integrally formed with the connector, and the protrusion is formed by cutting and folding the connector made of metal.

Beneficial effects of the present invention, this solution provides a matching fascia gun body, charging line, and power adapter. Under the matching design, only when the charging line in this solution is used for charging, the protrusion on the plug connector will be in contact with the charger. The discharge circuit cooperates to switch to realize the charging function, and when the USB universal plug is used, it is in a discharging state. Under this design, the plug connector of the charging cable cannot be used for charging other products because of its protrusions, which avoids damage to other devices during the charging process due to power problems, and the body of the fascia gun and the power adapter. It cooperates with the protrusion to switch the charge and discharge state, so when inserting a common USB universal plug (no protrusion design), it will only be in the discharge state and the normal power supply state (lower voltage and power), such as 5v, 1A.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the internal structure of the present invention;

Fig. 3 is an enlarged view of part A in Fig. 2;

Fig. 4 is a schematic diagram of the socket structure of the present invention;

5 is a schematic diagram of a cross-sectional structure of a jack of the present invention;

Figure 6 is a schematic cross-sectional view of the overall structure of the present invention;

Fig. 7 is an enlarged view of part B in Fig. 6;

Fig. 8 is a schematic diagram of the adapter of the present invention adapted to a universal USB plug;

Fig. 9 is a schematic diagram of the discharge state of the fascia gun body of the present invention;

Fig. 10 is a schematic diagram of another perspective view of the fascia gun body of the present invention in a discharge state;

Fig. 11 is a schematic diagram of the state of charging other devices by the power adapter of the present invention;

FIG. 12 is a schematic view from another perspective of the charging state of other devices by the power adapter of the present invention.

Reference numerals: 1. Fascia gun body; 11. Housing; 12. First jack; 13. Charging and discharging circuit; 2. Charging cable; 21. Connector; 211. Protrusion; 3. Power adapter; 31. Second jack; 5. Button; 6. Shrapnel; 61. Bending part; 7. Inclined surface; 8. Groove.

Detailed ways

The present invention will be described in further detail below in conjunction with the embodiments given in the accompanying drawings.

Referring to Figure 1-12,

A reverse-chargeable fascia gun includes a fascia gun body 1, a charging cable 2, and a power adapter 3. The fascia gun body 1 includes a housing 11, a first jack 12 disposed on the housing 11, a setting The charging and discharging circuit 13 in the housing 11; the power adapter 3 has a second jack 31, and the charging line 2 is used to connect the first jack 12 and the second jack 31; the first jack 12 and the second jack 31 are compatible with USB universal plugs, and there are grooves 8 on the walls of the first jack 12 and the second jack 31; both ends of the charging line 2 have connectors 21; the grooves 8 are used for adapting The connector 21 is provided with a protrusion 211 corresponding to the position of the groove 8, and the charging and discharging circuit 13 cooperates with the connector 21 or the USB universal plug to form a charging or discharging state.

In this solution, the setting of the first jack 12 and the second jack 31 can be adapted to the USB universal plug, and the discharge function can be realized by using the adaptation function. When the ordinary USB universal plug is inserted into the first jack 12 and the second After being inserted into the jack 31, it cooperates with the charging and discharging circuit 13 to discharge, and can be used as a mobile power supply to supply power to the outside, such as charging a mobile phone. Since the product in this solution is a fascia gun, as mentioned in the background technology, the charging voltage and power of the fascia gun are relatively high, and it is not suitable for most products. Therefore, the protocol of its own charging line 2 has relatively low power when charging. Large, in order to avoid being misused, the connector 21 of the matching charging cable 2 is adapted to the first jack 12 and the second jack 31, and the first jack 12 and the second jack 31 are provided with grooves 8. The connector 21 is provided with a protrusion 211 to form a cooperation between the two, so as to prevent the charging line 2 of the protocol with a higher charging power from being misused on other products, causing damage to other products. The connector 21 of this solution has a protrusion 211, which can avoid adapting to other devices, thereby improving safety, and the groove 8 on the jack will not affect the insertion of a universal USB plug, so it can not only ensure safe charging, but also Able to provide a general discharge scheme. While allowing users to be portable, it reduces the burden of carrying mobile power.

It should be noted that the above-mentioned charging cable 2 and its connector 21 are connecting parts specially adapted to the USB port of the fascia gun of this solution, and are used to connect the power adapter 3 and the body 1 of the fascia gun, which can realize the adaptation Higher charging voltage and power.

Referring to Figure 1, Figure 2 and Figure 8, the second socket on the power adapter 3 (charging head) has a groove 8, and the mating connector 21 also has a protrusion 211, which can be switched through the protrusion 211 The charging power, that is, under this design, only the power adapter 3 and the USB port of the fascia gun are adapted through the protrusion 211, and safe charging is realized after switching to the corresponding charging power. When the second jack 31 of the power adapter 3 is inserted into a common universal USB plug, it is only for safe charging power, which can protect the safety of other equipment. In the case of the charging line 2 of the component 21, it will switch to the charging power of the adaptive fascia gun. Based on this design, it can not only maintain safe power consumption when charging other devices through the power adapter 3 of this solution, but also provide safe power consumption when the fascia gun body 1 is discharged outward. Referring to Figures 8, 11, and 12, the power adapter 3 is used as a solution for safely supplying power to the outside, and it adopts a universal USB plug.

Referring to Figures 6 and 7, 9, and 10, the solution is that the first jack 12 of the fascia gun body 1 is inserted into the adaptation state of a universal USB plug, and the charging state will not be switched to high power in this state. mode, it can be in a safe discharge state to protect external devices from safe charging.

In addition, through the setting of the protrusion 211, the user can also easily identify the front and back. During the insertion process of the USB plug, it often needs to be inserted into the first jack 12 or the second jack 31 after repeating the front and back. The protrusion 211 can quickly identify the front and back.

In order to realize the switching of charging and discharging, the housing 11 and the power adapter 3 are also provided with buttons 5 at positions corresponding to the first jack 12 and the second jack 31 respectively, and the buttons 5 are used to switch the charging and discharging of the charging and discharging circuit 13 , and the button 5 is matched with the protrusion 211 of the connector 21 , when the protrusion 211 of the connector 21 is inserted into the first jack 12 or the second jack 31 in place, the protrusion 211 presses the button 5 .

Use the button 5 to switch charge and discharge, and the signal can be generated through the button 5, which is used to cooperate with the single-chip microcomputer to process and realize the switching of the charging and discharging mode. Of course, the physical power on and off of the button 5 can also be directly used to realize the circuit switching. This switching method of using the button 5 to trigger the signal or directly switching the power on and off is more clear and stable, and realizes the switching of circuit charging and discharging.

Moreover, the button 5 is switched in conjunction with the protrusion 211, so it can also avoid other unsuitable power lines to be charged. The setting of this program can not only protect the charging of other products, but also protect its own charging.

In this solution, the position of the protrusion 211 and the groove 8 can directly correspond to the position of the button 5, that is, the button part of the button 55 is located at the groove 8, and when the protrusion 211 enters the groove 8, it will squeeze the button 5 , and then let the button 5 be triggered. It should be noted that the button 5 is non-self-locking, and a micro switch can be used.

As a preference, a shrapnel 6 is provided in the housing 11 and the power adapter 3 at positions corresponding to the first jack 12 and the second jack 31 respectively. Inserted into the first insertion hole 12 or the second insertion hole 31 , the protrusion 211 pushes up the elastic sheet 6 and presses the button 5 through the elastic sheet 6 .

The cooperation between the shrapnel 6 and the protrusion 211 can improve the service life of the button 5 and reduce the wear of the button 5, wherein the shrapnel 6 can be made of a metal material to protrude 211, which can further improve the service life.

And with the setting of the elastic piece 6, the pressing distance can be extended, and the length of the elastic piece 6 can be used to extend the distance to cooperate with the button 5, so that the design space of the button 5 is larger.

There are at least two grooves 8 , which are distributed on both sides of the key 5 , and the socket 21 is provided with protrusions 211 corresponding to the grooves 8 .

There are distributed protrusions 211 on both sides of the button 5, which can be triggered in conjunction with the shrapnel 6. The protrusions 211 on both sides can make the force of the button 5 more uniform, and avoid the deformation of the shrapnel 6 under force on one side, resulting in failure to trigger the button 5. The problem.

In a further setting, the position of the elastic piece 6 corresponds to one of the side walls of the first insertion hole 12 or the second insertion hole 31, and the two grooves 8 on the first insertion hole 12 or the second insertion hole 31 are located in the first insertion hole 12 or the second insertion hole 31. on the side hole wall. Corresponding the shrapnel 6 to the hole wall of the first socket 12 or the second socket 31 can make it easier for the protrusion 211 to fit, after the socket 21 is inserted into the first socket 12 or the second socket 31 , the protrusion 211 is easier to form a correspondence with the elastic piece 6 .

In addition, the portion of the elastic piece 6 corresponding to the position of the groove 8 is provided as a bent portion 61 in a bent state, and the bent portion 61 is used for abutting against the protrusion 211 of the plug connector 21 .

The bending part 61 formed by bending the elastic piece 6 can improve the strength, and is used to cooperate with the protrusion 211 for abutting use, which has a longer service life, and can also use bending to improve the deformation resistance effect. It can make the pressing of the button 5 by the shrapnel 6 more stable. The shape of the bent portion 61 may be arc-shaped, and the cooperation with the protrusion 211 is smoother.

In order to make the cooperation between the protrusion 211 and the bending part 61 more smooth, the side of the protrusion 211 corresponding to the first insertion hole 12 or the second insertion hole 31 is set as a slope 7, and the protrusion 211 is used for jacking up The end of the shrapnel 6 forms an obtuse angle with the slope 7 .

Referring to FIG. 3 , using the inclined surface 7 to cooperate with the bent portion 61 can improve the pressing effect on the elastic piece 6. The inclined surface 7 has a guiding effect and has an upward component force when it abuts against the elastic piece 6. The effect of pressing the shrapnel 6 is better.

The embodiment of the protrusion 211 can be implemented in at least the following two ways:

1. The protrusion 211 can be integrally formed on the connector 21 as a solid structure. For example, plastic material is used for injection molding.

2. The protrusion 211 is integrally formed with the connector 21 , and the protrusion 211 is formed by cutting and folding the metal connector 21 .

The first solution can be made of plastic, the second solution can be made of metal material, and the second solution can refer to FIG. 3 , which can be cut and then bent to form the protrusion 211 by bending. The bending can be folded in multiple layers or in a single layer. The figure shows a double-layer structure. On the one hand, the bending structure can make the protrusion 211 have sufficient strength, and the end can provide support. In order to improve the strength of the protrusion 211.

The above descriptions are only preferred implementations of the present invention, and the scope of protection of the present invention is not limited to the above examples, and all technical solutions that fall under the idea of the present invention belong to the scope of protection of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention should also be regarded as the protection scope of the present invention.

Claims (8)

1. The fascia gun capable of being charged reversely comprises a fascia gun body, a charging wire and a power adapter, and is characterized in that the fascia gun body comprises a shell, a first jack arranged on the shell and a charging and discharging circuit arranged in the shell; the power adapter is provided with a second jack, and the charging wire is used for connecting the first jack and the second jack; the first jack and the second jack are both matched with USB universal plugs, and the hole walls of the first jack and the second jack are both provided with grooves; plug connectors are arranged at two ends of the charging wire; the grooves are used for adapting to the plug connector, protrusions are arranged on the plug connector corresponding to the grooves, and the charging and discharging circuit is matched with the plug connector or the USB universal plug to form a charging or discharging state.

2. The reversible charging fascia gun according to claim 1, wherein a key is further provided on the housing and the power adapter at positions corresponding to the first jack and the second jack, respectively, the key being used for switching charging and discharging of the charging and discharging circuit, and the key being engaged with the protrusion of the plug, the protrusion pressing the key when the protrusion of the plug is inserted into the first jack or the second jack in place.

3. The reversible charging fascia gun according to claim 2, wherein the housing and the power adapter are respectively provided with a spring piece at positions corresponding to the first jack and the second jack, at least a part of the spring piece is corresponding to the groove, the protrusion jacks up the spring piece as the plug-in unit is inserted into the first jack or the second jack, and the key is pressed by the spring piece.

4. A reversible charging fascia gun according to claim 3, wherein the number of the grooves is at least two, the grooves are distributed on two sides of the key, and the plug-in units are provided with protrusions corresponding to the grooves.

5. The reversible charging fascia gun according to claim 4, wherein the position of the spring plate corresponds to one side wall of the first jack or the second jack, and two grooves on the first jack or the second jack are both positioned on the side wall.

6. A reversible charging fascia gun according to claim 3, wherein the portion of the spring corresponding to the position of the groove is provided with a bending part in a bending state, and the bending part is used for abutting with the protrusion of the plug-in connector.

7. The reversible charging fascia gun according to claim 6, wherein one side of the protrusion corresponding to the first insertion hole or the second insertion hole is provided with an inclined surface, and the protrusion is used for jacking up the end part of the elastic sheet to form an obtuse included angle with the inclined surface.

8. The fascia gun of any of claims 1-7, wherein the protrusion and the connector are integrally formed, and the protrusion is formed by folding a metal connector after cutting.

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