Anti-falling electric vehicle charger

Abstract

The utility model relates to an anti-falling electric vehicle charger which comprises a shell, the two ends of the shell are connected with a power plug and an output plug through electric wires respectively, the charger further comprises a first protection piece for protecting the shell and a second protection piece for protecting two pins of the power plug, the first protection piece comprises four limiting pieces and four corner wrapping assemblies, and the second protection piece comprises four limiting pieces and four corner wrapping assemblies. The four corner wrapping assemblies are installed on the four edges in the length direction of the shell respectively and wrap the corner angles at the two ends of the corresponding edges, the four limiting pieces correspond to the four corner wrapping sleeves respectively, and the limiting pieces are used for limiting the positions of the corresponding corner wrapping assemblies on the shell. When the electric vehicle charger falls off, the shell part and the pin part are most easily damaged and deformed, and the edges of the shell part are in contact with the ground firstly, so that the four edges and the eight corners of the shell are wrapped by the corner wrapping assemblies, the shell is protected, and the falling resistance of the electric vehicle charger is improved.

Description

Technical Field

[0001] The utility model relates to the field of electric vehicle charging devices, in particular to an anti-fall type electric vehicle charger. Background Art

[0002] An electric vehicle charger is a charging device specially configured for the battery of an electric bicycle.

[0003] Current chargers are all made of plastic. If the charger is accidentally dropped on the ground, the charger shell may be damaged, thereby reducing the service life of the charger. If the power plug of the charger falls directly to the ground, the pins may be bent, affecting normal charging. Utility Model Content

[0004] In order to improve the drop resistance of an electric vehicle charger, the present application provides a drop-resistant electric vehicle charger.

[0005] The present application provides a fall-resistant electric vehicle charger that adopts the following technical solutions:

[0006] A drop-resistant electric vehicle charger includes a shell, with a power plug and an output plug connected to both ends of the shell via wires. The shell also includes a first protective member for protecting the shell and a second protective member for protecting the two pins of the power plug. The first protective member includes four limit members and four corner components. The four corner components are respectively installed on the four edges in the length direction of the shell and cover the corners at both ends of the corresponding edges. The four limit members correspond to four corner sleeves respectively. The limit members are used to limit the position of the corresponding corner components on the shell.

[0007] By adopting the above technical solution, when the electric vehicle charger falls, the shell part and the pin part are most likely to be damaged and deformed, and the edges of the shell part are likely to touch the ground first. Therefore, the four edges and the eight corners of the shell are covered by the corner wrapping component to protect the shell, thereby improving the drop resistance of the electric vehicle charger.

[0008] Preferably, the corner wrapping assembly includes two corner wrapping sleeves and several elastic bands. The corner wrapping sleeves and the elastic bands are both made of soft materials. The two corner wrapping sleeves respectively cover the corners at both ends of the corresponding edges, and the two ends of the elastic band are respectively arranged on the two corner wrapping sleeves.

[0009] By adopting the above technical solution and setting an elastic band, the distance between the two corner sleeves can be adjusted. If the internal part of the charger is damaged and no longer used, the corner sleeve assembly can be disassembled and installed on other chargers for use, thereby improving the applicability of the corner sleeve assembly.

[0010] Preferably, the limiting member includes a positioning block and a positioning groove, the positioning block is fixedly arranged on the corresponding end face in the length direction of the shell, the positioning groove is opened on the inner surface of the angle sleeve, and the positioning block is embedded in the positioning groove.

[0011] By adopting the above technical solution, the movement of the corner sleeve is restricted by the cooperation between the positioning block and the positioning groove.

[0012] Preferably, the limiting component further includes a limiting block, which is fixedly arranged on the outer surface of the shell and located between two adjacent elastic bands of the corresponding corner wrapping component.

[0013] By adopting the above technical solution, the limit block is located between two adjacent elastic bands, which limits the middle position between the two corner sleeves, thereby further improving the stability of the corner assembly after installation.

[0014] Preferably, a protrusion is provided on the outer end surface of the corner sleeve, the cross section of the protrusion is T-shaped, and the protrusion is used for tying or hooking a rope.

[0015] By adopting the above technical solution, if the user feels that the corner assembly is not stable and firm enough after installation, he can use an additional rope to tie the two ends of the rope to the diagonal protrusions to improve the installation firmness of the corner sleeve. This also applies to when the corner assembly is disassembled and installed on other chargers for use. Ordinary chargers do not have components such as positioning blocks and limit blocks, so it is even more necessary to use protrusions and external pull ropes to fix the corner assembly.

[0016] Preferably, the second protective body includes a sliding limiter, two first springs, and two guard plates. The power plug includes a shell and two pins. Two slide grooves are provided on the shell. The two slide grooves are arranged along the length direction of the pins. The two slide grooves are respectively distributed on both sides of the two pins. The two guard plates are respectively slidably connected to the two slide grooves along the length direction of the slide grooves. The two first springs are respectively arranged in the two slide grooves. The two ends of the first spring are respectively arranged on the bottom wall of the slide groove and the corresponding guard plate. The sliding limiter is arranged on the shell to limit the sliding of the guard plate. When the sliding limiter has no external force acting on the guard plate, the two guard plates move respectively to face the two pins. The projection of the guard plate on the pins exceeds and completely covers the pins.

[0017] By adopting the above technical solution, when the power plug falls on the ground, the two guard plates will first contact the ground with the pins, buffering the impact of the power plug falling, thereby protecting the pins.

[0018] Preferably, the sliding limiter includes a second spring, a button and two limit blocks, a groove is provided on one side surface of the housing, the button is slidably connected in the groove along a sliding direction perpendicular to the sliding direction of the guard plate, the two ends of the second spring are respectively provided on the bottom wall of the groove and on the button, the two limit blocks are respectively fixedly provided on both sides of the button, the two limit blocks move in the housing following the button, a through groove is provided on the side surface of the two guard plates facing each other along the length direction of the guard plates, and the ends of the two limit blocks away from the buttons are respectively located in the two through grooves;

[0019] The elastic force of the first spring is smaller than the elastic force of the second spring. A first inclined surface is provided on the limit block, and a second inclined surface is provided on the inner wall of the through groove. The first inclined surface and the second inclined surface cooperate with each other. When the button is not pressed, the second spring drives the first inclined surface of the limit block to abut against the second inclined surface of the channel.

[0020] By adopting the above technical solution, when the button is not pressed, the second spring drives the first inclined surface of the limit block to abut against the second inclined surface of the channel. At this time, there is always friction between the limit block and the guard plate, and the guard plate is difficult to retract when it hits the ground, thereby better protecting the pin; when the pin is inserted into the socket and the power is turned on, the user presses the button to move the limit block away from the guard plate, and the guard plate can automatically retract as the pin is inserted, and then releases the button. The limit block continues to abut against the guard plate under the action of the second spring to limit the position of the guard plate. The guard plate will not abut against the socket again under the action of the first spring to affect the stability of the plug.

[0021] The technical effects of this utility model are mainly reflected in the following aspects:

[0022] 1. The utility model uses the corner wrapping components to cover the four edges and eight corners of the shell to protect the shell, thereby improving the drop resistance of the electric vehicle charger;

[0023] 2. The utility model can adjust the distance between the two corner sleeves by setting an elastic rope. If the internal part of the charger is damaged and no longer in use, the corner assembly can be disassembled and installed on other chargers, thereby improving the applicability of the corner assembly;

[0024] 3. The utility model provides a guard plate. When the power plug falls on the ground, the two guard plates will first contact the ground with the pins, thereby buffering the impact of the power plug falling and protecting the pins. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0026] Figure 2 It is a structural diagram of the first protective component of an embodiment of the present application.

[0027] Figure 3 It is a structural diagram of the second protective component in an embodiment of the present application.

[0028] Figure 4 It is along Figure 3 Sectional view along line AA.

[0029] Figure 5 It is along Figure 3 Cross-sectional view along line BB.

[0030] Explanation of Reference Numerals: 1. Housing; 11. Power Plug; 111. Outer Shell; 112. Pin; 113. Slide Slot; 114. Groove; 12. Output Plug; 2. First Protective Member; 21. Corner Sleeve; 211. Protrusion; 22. Elastic Band; 23. Positioning Block; 24. Positioning Slot; 25. Limit Block; 3. Second Protective Member; 31. First Spring; 32. Guard Plate; 321. Channel; 322. Second Inclined Surface; 4. Sliding Limiting Member; 41. Second Spring; 42. Button; 43. Limiting Block; 431. First Inclined Surface; DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-Figure 5 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0032] The embodiment of the present application discloses a drop-resistant electric vehicle charger.

[0033] Reference Figure 1 and Figure 2 In this embodiment, a drop-resistant electric vehicle charger includes a shell 1, with a power plug 11 and an output plug 12 connected to both ends of the shell 1 through wires. It also includes a first protective member 2 for protecting the shell 1 and a second protective member 3 for protecting the two pins 112 of the power plug 11. The first protective member 2 includes four limit members and four corner components. The four corner components are respectively installed on the four edges in the length direction of the shell 1 and cover the corners at both ends of the corresponding edges. The four limit members correspond to four corner sleeves 21 respectively, and the limit members are used to limit the position of the corresponding corner components on the shell 1.

[0034] Reference Figure 1 and Figure 2 When the electric vehicle charger falls, the output plug 12 is not hard and the interface of the output plug 12 is concave, so only the shell 1 and the pin 112 are most likely to be damaged and deformed. The shell 1 is likely to touch the ground first with its edges, so the four edges and the eight corners of the shell 1 are covered by the corner wrapping component to protect the shell 1, thereby improving the drop resistance of the electric vehicle charger.

[0035] Reference Figure 1 The housing 1 contains a circuit board and a cooling fan. The circuit board provides the required charging current and voltage for the electric vehicle battery, and the cooling fan is used to dissipate heat inside the housing 1. The above are all existing mature technologies, and their electrical connection relationships and specific circuit structures will not be described in detail here.

[0036] Reference Figure 1 and Figure 2 The corner wrapping assembly includes two corner wrapping sleeves 21 and several elastic bands 22. Both the corner wrapping sleeves 21 and the elastic bands 22 are made of soft materials, such as rubber or silicone. The two corner wrapping sleeves 21 respectively cover the corners at the ends of the corresponding edges, and the ends of the elastic bands 22 are respectively installed on the two corner wrapping sleeves 21. By installing the elastic bands 22, the distance between the two corner wrapping sleeves 21 can be adjusted. If the internal structure of the charger is damaged and no longer used, the corner wrapping assembly can be disassembled and installed on other chargers, improving the applicability of the corner wrapping assembly.

[0037] Reference Figure 1 and Figure 2 The limiting member includes a positioning block 23 and a positioning groove 24. The positioning block 23 is fixedly arranged on the corresponding end face in the longitudinal direction of the housing 1. The positioning groove 24 is provided on the inner surface of the corner sleeve 21, and the positioning block 23 is embedded in the positioning groove 24. The movement of the corner sleeve 21 is limited by the cooperation between the positioning block 23 and the positioning groove 24.

[0038] Reference Figure 1 and Figure 2 The limiting member also includes a limiting block 25, which is fixedly mounted on the outer surface of the housing 1 and located between two adjacent elastic bands 22 of the corresponding corner assembly. The limiting block 25 is no higher than the surface of the corner sleeve 21. The limiting block 25 is located between the two adjacent elastic bands 22, restricting the center position between the two corner sleeves 21, further improving the stability of the corner assembly after installation.

[0039] Reference Figure 1 and Figure 2 The outer end surface of the corner sleeve 21 is provided with a protrusion 211. The cross-section of the protrusion 211 is T-shaped and is used for tying or hooking a rope. If the user feels that the corner assembly is not stable and secure enough after installation, they can use an additional rope and tie the two ends of the rope to the diagonal protrusions 211 to improve the installation security of the corner sleeve 21. This also applies to when the corner assembly is disassembled and installed on other chargers. Ordinary chargers do not have components such as positioning blocks 23 and limit blocks 25, so they need to use protrusions 211 and external pull ropes to secure the corner assembly.

[0040] Reference Figure 3-Figure 5The second protective body includes a sliding limiter 4, two first springs 31, and two guard plates 32. The power plug 11 includes a shell 111 and two pins 112. The shell 111 is provided with two sliding grooves 113. The two sliding grooves 113 are arranged along the length direction of the pins 112. The two sliding grooves 113 are respectively distributed on both sides of the two pins 112. The two guard plates 32 are respectively slidably connected to the two sliding grooves 113 along the length direction of the sliding grooves 113. The two first springs 31 are respectively arranged in the two sliding grooves 113. The two ends of the first spring 31 are respectively arranged on the bottom wall of the sliding groove 113 and on the corresponding guard plates 32. The sliding limiter 4 is arranged on the shell 111 to limit the sliding of the guard plates 32. When there is no external force acting on the guard plates 32 of the sliding limiter 4, the two guard plates 32 move respectively to face the two pins 112, and the projections of the guard plates 32 on the pins 112 exceed and completely cover the pins 112.

[0041] Reference Figure 3-Figure 5 When the power plug 11 falls on the ground, the two guard plates 32 will first contact the ground with the pins 112, buffering the impact of the power plug 11 falling, thereby protecting the pins 112.

[0042] Reference Figure 3-Figure 5 The sliding limiter 4 includes a second spring 41, a button 42 and two limiting blocks 43. A groove 114 is provided on one side surface of the shell 111. The button 42 is slidably connected in the groove 114 along a sliding direction perpendicular to the sliding direction of the guard plate 32. The two ends of the second spring 41 are respectively arranged on the bottom wall of the groove 114 and on the button 42. The two limiting blocks 43 are respectively fixed on both sides of the button 42. The two limiting blocks 25 follow the button 42 to move in the shell 111. A through groove is provided on the side surface of the two guard plates 32 facing each other along the length direction of the guard plates 32. The ends of the two limiting blocks 25 away from the button 42 are respectively located in the two through grooves.

[0043] Reference Figure 3-Figure 5 The elastic force of the first spring 31 is smaller than the elastic force of the second spring 41. A first inclined surface 431 is provided on the limit block 25, and a second inclined surface 322 is provided on the inner wall of the through groove. The first inclined surface 431 and the second inclined surface 322 cooperate with each other. When the button 42 is not pressed, the second spring 41 drives the first inclined surface 431 of the limit block 25 to abut against the second inclined surface 322 of the channel 321.

[0044] Reference Figure 3-Figure 5When the button 42 is not pressed, the second spring 41 drives the first inclined surface 431 of the limit block 25 to abut against the second inclined surface 322 of the channel 321. At this time, there is always friction between the limit block 25 and the guard plate 32. When the guard plate 32 hits the ground, it is difficult to retract, thereby better protecting the pin 112; when the pin 112 is inserted into the socket and the power is turned on, the user presses the button 42 to make the limit block 25 move away from the guard plate 32. The guard plate 32 can automatically retract as the pin 112 is inserted, and then releases the button 42. The limit block 25 continues to abut against the guard plate 32 under the action of the second spring 41 to limit the position of the guard plate 32. The guard plate 32 will not abut against the socket again under the action of the first spring 31 to affect the stability of the plug.

[0045] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A fall-resistant electric vehicle charger, comprising a housing (1), wherein two ends of the housing (1) are connected to a power plug (11) and an output plug (12) via electric wires, and characterized in that: The invention also includes a first protective member (2) for protecting the housing (1) and a second protective member (3) for protecting the two pins (112) of the power plug (11). The first protective member (2) includes four limiting members and four corner wrapping components. The four corner wrapping components are respectively installed on four edges in the longitudinal direction of the housing (1) and cover the corners at both ends of the corresponding edges. The four limiting members correspond to four corner wrapping sleeves (21) respectively. The limiting members are used to limit the position of the corresponding corner wrapping components on the housing (1).

2. The anti-fall type electric vehicle charger according to claim 1, characterized in that: The corner wrapping assembly comprises two corner wrapping sleeves (21) and a plurality of elastic bands (22), wherein the corner wrapping sleeves (21) and the elastic bands (22) are both made of soft materials, the two corner wrapping sleeves (21) respectively wrap the corners at both ends of the corresponding edges, and the two ends of the elastic bands (22) are respectively arranged on the two corner wrapping sleeves (21).

3. The anti-fall type electric vehicle charger according to claim 2, characterized in that: The limiting member comprises a positioning block (23) and a positioning groove (24); the positioning block (23) is fixedly arranged on a corresponding end face in the length direction of the housing (1); the positioning groove (24) is provided on the inner surface of the corner sleeve (21); and the positioning block (23) is embedded in the positioning groove (24).

4. The anti-fall type electric vehicle charger according to claim 3, characterized in that: The limiting member further comprises a limiting block (25), wherein the limiting block (25) is fixedly arranged on the outer surface of the housing (1), and the limiting block (25) is located between two adjacent elastic bands (22) of the corresponding corner wrapping assembly.

5. The anti-fall type electric vehicle charger according to claim 2, characterized in that: A protrusion (211) is provided on the outer end surface of the corner sleeve (21), the cross section of the protrusion (211) is T-shaped, and the protrusion (211) is used for tying or hooking a rope.

6. The anti-fall type electric vehicle charger according to claim 1, characterized in that: The second protective member includes a sliding limit member (4), two first springs (31), and two guard plates (32). The power plug (11) includes a shell (111) and two pins (112). Two slide grooves (113) are provided on the shell (111). The two slide grooves (113) are arranged along the length direction of the pins (112). The two slide grooves (113) are respectively distributed on both sides of the two pins (112). The two guard plates (32) are respectively connected to the two slide grooves (113) in a sliding manner along the length direction of the slide grooves (113). A first spring (31) is respectively arranged in two slide grooves (113), and two ends of the first spring (31) are respectively arranged on the bottom wall of the slide groove (113) and on the corresponding guard plate (32). The sliding limiter (4) is arranged on the shell (111) to limit the sliding of the guard plate (32). When the sliding limiter (4) has no external force acting on the guard plate (32), the two guard plates (32) respectively move to face the two pins (112), and the projection of the guard plate (32) on the pins (112) exceeds and completely covers the pins (112).

7. The anti-fall type electric vehicle charger according to claim 6, characterized in that: The sliding limiter (4) comprises a second spring (41), a button (42) and two limiting blocks (43); a groove (114) is provided on one side surface of the housing (111); the button (42) is slidably connected in the groove (114) along a sliding direction perpendicular to the guard plate (32); two ends of the second spring (41) are respectively arranged on the bottom wall of the groove (114) and on the button (42); the two limiting blocks (43) are respectively fixed on both sides of the button (42); the two limiting blocks (25) move in the housing (111) following the button (42); a through groove is provided on the side surface of the two guard plates (32) facing each other along the length direction of the guard plates (32); and the ends of the two limiting blocks (25) away from the button (42) are respectively located in the two through grooves; The elastic force of the first spring (31) is smaller than the elastic force of the second spring (41); a first inclined surface (431) is provided on the limit block (25); a second inclined surface (322) is provided on the inner wall of the through groove; the first inclined surface (431) and the second inclined surface (322) cooperate with each other; when the button (42) is not pressed, the second spring (41) drives the first inclined surface (431) of the limit block (25) to abut against the second inclined surface (322) of the channel (321).

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