Battery charger

Abstract

The utility model provides a battery charger, which comprises a shell, a battery charging part, a charging contact and a slideway baffle plate with an upper baffle strip, a first through hole is formed on the battery charging part, and a first guide wheel partially and elastically protruding out of the first through hole is arranged in the first through hole. The first guide wheel is connected with the interior of the shell through an elastic device. According to the battery charger provided by the utility model, the first through hole is formed, and the first guide wheel is arranged in the first through hole, so that the battery is assisted by the first guide wheel in the process of being inserted into the slideway baffle plate, the resistance of the battery inserted into the slideway baffle plate is smaller, and the mutual friction effect between the battery and the battery charging part is smaller; and the service lives of the battery and the battery charging part are prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of charging, and specifically to a battery charger. Background Art

[0002] A battery charger is a device for charging batteries. Through specific circuit design, it converts the electrical energy of an external power source into a charging current and voltage suitable for the battery. Its main function is to replenish energy for the battery so that the battery can continuously supply power in various devices. Different types of battery chargers are applicable to different batteries, such as mobile phone chargers, electric vehicle chargers, etc. During operation, the charger needs to ensure charging safety and prevent situations such as overcharging and overheating. High-quality chargers have multiple protection functions, such as overvoltage protection, overcurrent protection, etc. At the same time, the charging speed of the charger also varies due to different technologies. Fast chargers can fully charge the battery in a shorter time, improving the usage efficiency.

[0003] When the existing battery charger charges the battery, usually when inserting the battery, it often directly rubs against the charger body. When the battery is repeatedly charged and used, the friction will damage the protective layer on the battery surface. Summary of the Utility Model

[0004] In order to overcome the above technical problems, the utility model provides a battery charger to improve the problems of large resistance during battery loading and unloading and damage to the battery protective layer.

[0005] To achieve the above object, the utility model proposes a battery charger, including a housing, a battery charging part, charging contacts, and a slideway baffle with an upper stop strip. A first through hole is formed on the battery charging part, and a first guide wheel that locally protrudes elastically from the first through hole is installed in the first through hole. The first guide wheel is connected to the inside of the housing through an elastic device.

[0006] A first through hole is formed on the battery charging part, and the first guide wheel protrudes from the first through hole. The first guide wheel can contract into the first through hole after being squeezed, without affecting the battery being charged, but can enable the battery to obtain the auxiliary effect of the first guide wheel during the insertion process, making the resistance smaller when the battery is inserted into the charging slot, reducing the mutual friction between the battery and the battery charging part, and increasing the service life of the battery and the battery charging part.

[0007] Preferably, a support frame is provided inside the housing. The support frame is connected to the first guide wheel through a rotating shaft, and the support frame is connected to the housing through an elastic rod that can elastically contract.

[0008] The elastic rod can contract elastically to provide elastic thrust for the first guide wheel. The first guide wheel is in direct contact with the battery, reducing the frictional force between the battery and the battery charging part. When the battery completely covers the first guide wheel, the first guide wheel squeezes the elastic rod, causing it to contract, which not only ensures reducing the frictional force during the battery insertion process but also does not affect the insertion of the battery into the chute baffle.

[0009] Preferably, there are multiple first guide wheels, and the multiple first guide wheels are arranged in a straight line parallel to the length direction of the chute baffle.

[0010] Setting multiple first guide wheels can further reduce the frictional force and wear during the process of the battery inserting into the chute baffle.

[0011] Preferably, the upper bar is of a hollow structure inside, and a second through hole is formed on the side of the upper bar facing the battery charging part. A ball is installed in the second through hole and protrudes partially from the second through hole. The ball is elastically abutted against the inner wall of the upper bar through a spring.

[0012] The function of the upper bar is to prevent the battery inserted into the chute baffle from popping outwards. A hollow structure is formed inside the upper bar, and a second through hole is formed on the upper bar. The ball protrudes through the through hole, and the diameter of the through hole is smaller than the diameter of the ball, so that the ball cannot pass through the second through hole. In addition, the ball is supported from the inside of the upper bar by a spring, so that the ball always remains in the protruding state when not in contact with the battery. When the battery contacts the ball, the ball can contract inwards, and at the same time, the frictional force between the ball and the battery can also be reduced, reducing wear.

[0013] Preferably, a sliding strip is formed on the chute baffle.

[0014] Setting a sliding strip on the chute baffle also reduces the contact area when the battery is inserted into the chute baffle, thereby reducing the frictional force.

[0015] Preferably, a guard plate cavity is formed in the chute baffle along the length direction of the chute baffle. An opening communicating with the guard plate cavity is formed on one side of the chute baffle, and a guard plate slidably connected to the guard plate cavity is provided in the guard plate cavity.

[0016] Setting a guard plate cavity in the chute baffle and a guard plate in the guard plate cavity. When the battery is inserted into the chute baffle, pulling out the guard plate can protect the battery from both sides and prevent the battery from falling off the charger.

[0017] Preferably, a damping ring slidably fitted with the guard plate is provided at the opening.

[0018] Setting a damping ring at the opening can keep the guard plate fixed after being pulled out and prevent it from automatically sliding back into the guard plate cavity.

[0019] Preferably, the damping ring is made of silica gel.

[0020] Silica gel is soft and has a large resistance, making it a suitable material for the damping ring.

[0021] The battery charger provided by the present utility model, by providing a first through hole and arranging a first guide wheel in the first through hole, enables the battery to be assisted by the first guide wheel during the process of inserting into the slideway baffle, reduces the resistance when the battery inserts into the slideway guide plate, makes the mutual friction between the battery and the battery charging part smaller, and increases the service life of the battery and the battery charging part. Description of the Drawings

[0022] Figure 1 It is a schematic side structure diagram of the battery charger provided by the embodiment of the present utility model;

[0023] Figure 2 It is a schematic three-dimensional structure diagram of the battery charger provided by the embodiment of the present utility model;

[0024] Figure 3 It is a schematic structure diagram of the guard plate of the battery charger provided by the embodiment of the present utility model.

[0025] Description of the Reference Numerals in the Drawings

[0026] 1. Outer shell; 2. Battery charging part; 3. Charging contact; 4. Slideway baffle; 5. Upper stop bar; 6. First through hole; 7. First guide wheel; 8. Second through hole; 9. Ball; 10. Sliding bar; 11. Opening; 12. Guard plate. Detailed Embodiment

[0027] The embodiments of the present utility model will be described below with reference to the drawings. The elements and features described in one drawing or one embodiment of the present utility model can be combined with the elements and features shown in one or more other drawings or embodiments. It should be noted that for the sake of clarity, the drawings and the description omit the representation and description of the components or processes that are irrelevant to the present utility model and are known to those of ordinary skill in the art.

[0028] The present utility model will be further described below with reference to the drawings.

[0029] As Figures 1 to 3 shown, the battery charger provided by the present utility model includes an outer shell 1, a battery charging part 2, a charging contact 3, and a slideway baffle 4 with an upper stop bar 5. A first through hole 6 is formed on the battery charging part 2, and a first guide wheel 7 that protrudes elastically partially from the first through hole 6 is installed in the first through hole 6. The first guide wheel 7 is connected to the inside of the outer shell 1 through an elastic device.

[0030] A first through hole 6 is formed on the battery charging part 2, and a first guide wheel 7 is extended from the first through hole 6. The first guide wheel 7 can be retracted into the first through hole 6 after being squeezed, which will not affect the battery being charged, but can enable the battery to be assisted by the first guide wheel 7 during the insertion process, thereby reducing the resistance of the battery when inserted into the charging slot, reducing the mutual friction between the battery and the battery charging part 2, and increasing the service life of the battery and the battery charging part 2.

[0031] In addition, the first guide wheel 7 can be wrapped with a silicone layer on the outside. The silicone layer itself is elastic and can avoid friction when contacting the battery. During the movement of the battery, the silicone layer can fit tightly with the surface of the battery and will not slide against each other, providing a small resistance value for the battery, ensuring that the battery moves more smoothly.

[0032] In one embodiment of the present invention, a support frame is provided inside the housing 1 , the support frame is connected to the first guide wheel 7 via a rotating shaft, and the support frame is connected to the housing 1 via an elastic rod that can be elastically contracted.

[0033] The elastic rod can elastically contract to provide an elastic thrust for the first guide wheel 7, and the first guide wheel 7 directly contacts the battery to reduce the friction between the battery and the battery charging part 2. When the battery completely covers the first guide wheel 7, the first guide wheel 7 squeezes the elastic rod to contract it, thereby reducing the friction during the battery insertion process and not affecting the insertion of the battery into the slide baffle 4.

[0034] In one embodiment of the present invention, there are multiple first guide wheels 7 , and the multiple first guide wheels 7 are arranged in a straight line parallel to the length direction of the slide baffle 4 .

[0035] The plurality of first guide wheels 7 can further reduce friction and wear of the battery during insertion into the slide baffle 4 .

[0036] In one embodiment of the utility model, the interior of the upper baffle 5 is a hollow structure, and a second through hole 8 is formed on the side of the upper baffle 5 facing the battery charging part 2, and a ball 9 partially protruding from the second through hole 8 is installed in the second through hole 8, and the ball 9 is elastically abutted against the inner wall of the upper baffle 5 through a spring.

[0037] The function of the upper baffle 5 is to prevent the battery inserted into the slide baffle 4 from popping out. A hollow structure is formed inside the upper baffle 5. A second through hole 8 is formed on the upper baffle 5. The ball 9 passes through the through hole. The diameter of the through hole is smaller than the diameter of the ball 9, so that the ball 9 cannot pass through the second through hole 8. In addition, the ball 9 is supported from the inside of the upper baffle 5 by a spring, so that the ball 9 always remains in a state of passing out when it does not contact the battery. When the battery contacts the ball 9, the ball 9 can shrink inward. At the same time, when the ball 9 contacts the battery, the friction between the battery and the upper baffle 5 can be reduced, thereby reducing wear.

[0038] As shown in one embodiment of the present utility model, a sliding strip 10 is formed on the slideway baffle 4.

[0039] By arranging the sliding strip 10 on the slideway baffle 4, when the battery is inserted into the slideway baffle 4, the contact area is reduced, thereby reducing the frictional force.

[0040] As shown in one embodiment of the present utility model, a guard plate cavity is formed in the slideway baffle 4 along the length direction of the slideway baffle 4. An opening 11 communicating with the guard plate cavity is formed on one side of the slideway baffle 4, and a guard plate 12 slidably connected to the guard plate cavity is arranged in the guard plate cavity.

[0041] By arranging the guard plate cavity in the slideway baffle 4 and arranging the guard plate 12 in the guard plate cavity, when the battery is inserted into the slideway baffle 4, by pulling out the guard plate 12, the battery can be protected from both sides, and the battery can also be prevented from falling off the charger.

[0042] As shown in one embodiment of the present utility model, a damping ring slidably fitted with the guard plate 12 is arranged at the opening 11.

[0043] By arranging the damping ring at the opening 11, the guard plate 12 can be kept fixed after being pulled out and will not automatically slide back into the guard plate cavity.

[0044] As shown in one embodiment of the present utility model, the damping ring is made of silica gel.

[0045] Silica gel is soft and has a large resistance, making it a suitable material for the damping ring.

[0046] For the battery charger provided by the present utility model, by arranging the first through hole and arranging the first guide wheel in the first through hole, the battery is assisted by the first guide wheel 7 during the process of inserting into the slideway baffle, so that the resistance of the battery during insertion into the slideway guide plate is smaller, the mutual friction between the battery and the battery charging part is smaller, and the service life of the battery and the battery charging part is increased.

[0047] Although the present utility model and its advantages have been described in detail, it should be understood that various changes, substitutions and transformations can be made without departing from the spirit and scope of the present utility model as defined by the appended claims. Moreover, the scope of the present application is not limited to the specific embodiments of the processes, devices, means, methods and steps described in the specification. Those of ordinary skill in the art will easily understand from the disclosure of the present utility model that according to the present utility model, processes, devices, means, methods or steps that perform substantially the same functions as the corresponding embodiments described herein or obtain substantially the same results can be used, existing and to be developed in the future. Therefore, the appended claims are intended to include such processes, devices, means, methods or steps within their scope.

Claims

1. A battery charger, comprising a housing (1), a battery charging unit (2), charging contacts (3), and a slideway baffle (4) with a retaining bar (5), characterized in that, A first through hole (6) is formed in the battery charging part (2), and a first guide wheel (7) that elastically protrudes locally from the first through hole (6) is installed in the first through hole (6). The first guide wheel (7) is connected to the inside of the housing (1) through an elastic device.

2. The battery charger according to claim 1, characterized in that, A support frame is provided inside the housing (1). The support frame is connected to the first guide wheel (7) through a rotating shaft, and the support frame is connected to the housing (1) through an elastic rod that can elastically contract.

3. The battery charger according to claim 2, wherein There are multiple first guide wheels (7), and the multiple first guide wheels (7) are arranged in a straight line parallel to the length direction of the slideway baffle (4).

4. The battery charger according to claim 3, characterized in that, The upper stop strip (5) has a hollow structure inside, and a second through hole (8) is formed on the surface of the upper stop strip (5) facing the battery charging part (2). A ball (9) that protrudes locally from the second through hole (8) is installed in the second through hole (8). The ball (9) is elastically abutted against the inner wall of the upper stop strip (5) through a spring.

5. The battery charger according to claim 4, characterized in that, A sliding strip (10) is formed on the slideway baffle (4).

6. The battery charger according to claim 5, wherein A guard plate cavity is formed in the slideway baffle (4) along the length direction of the slideway baffle (4). An opening (11) communicating with the guard plate cavity is formed on one side of the slideway baffle (4), and a guard plate (12) that is slidably connected to the guard plate cavity is provided in the guard plate cavity.

7. The battery charger according to claim 6, characterized in that, A damping ring that is slidably fitted to the guard plate (12) is provided at the opening (11).

8. The battery charger according to claim 7, characterized in that, The damping ring is made of silica gel.

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