A portable backup power source

Abstract

The utility model discloses a kind of portable backup mobile power supply, comprising: shell and install battery group, conducting plate and control circuit board in shell, the battery group and conducting plate are respectively with the control circuit board electricity is connected, the shell includes face shell and bottom shell, waterproof rubber ring is provided between the face shell and bottom shell, the bottom of bottom shell is provided with multiple countersunk holes, the threaded end of multiple screws is correspondingly passed through multiple countersunk holes and face shell body upper threaded hole locking cooperation, every described countersunk hole is provided with sealing plug sealingly abutting with its side wall.Using the above technical scheme, by setting sealing plug sealingly abutting with its side wall in the countersunk hole on shell, water seepage into the shell interior from the screw connection position can be prevented by sealing plug, improve the sealing property of mobile power supply, improve waterproof effect, thereby reduce failure rate, improve service life.

Description

Technical Field

[0001] This utility model relates to the technical field of portable power banks, and in particular to a portable backup power bank. Background Technology

[0002] With societal progress, portable electric tools such as electric two-wheelers and electric tricycles are becoming increasingly widely used in our lives. As a result, battery technology, which powers these vehicles, is also constantly evolving. The development of backup mobile batteries is showing a trend towards miniaturization, lightweighting, and cordless operation, while continuously developing lithium batteries that meet market demands for safety and consistency.

[0003] Existing power banks generally consist of a housing and a battery pack installed inside the housing. The housing is usually made up of a front shell and a bottom shell, which are fixed together by screws. A sealing ring is set between the front shell and the bottom shell to achieve a sealed connection. When the screws connecting the front shell and the bottom shell are not tightened properly or the screws are loose, water can seep into the housing at the screw connection point, resulting in a high failure rate of the power bank. Utility Model Content

[0004] In order to overcome the existing technical defects, the purpose of this utility model is to provide a portable backup power supply to solve the above-mentioned technical problems.

[0005] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0006] According to one aspect of this utility model, a portable backup power bank is designed, comprising: a housing and a battery pack, a conductive plate, and a control circuit board installed within the housing. The battery pack and the conductive plate are electrically connected to the control circuit board. The housing includes a front shell and a bottom shell. The front shell has multiple display through holes and a mounting hole. A light-transmitting silicone sealant is provided at the position of each display through hole. Multiple protrusions on the silicone sealant are inserted into the multiple display through holes and make sealing contact with the inner sidewall of the display through holes. A button cap made of silicone material is installed in the mounting hole and makes sealing contact with its sidewall. The conductive plate is fixed to the inner side of the front shell, and multiple power indicator LEDs on it are placed in the grooves on the multiple protrusions. A switch button on it is placed in the button cap. A waterproof rubber ring is provided between the front shell and the bottom shell. The bottom of the bottom shell has multiple countersunk holes. The threaded ends of multiple screws pass through the multiple countersunk holes and lock into the threaded holes on the front shell. A sealing plug is provided in each countersunk hole and makes sealing contact with its sidewall.

[0007] By adopting the above technical solution, a sealing plug is installed in the countersunk hole on the shell to seal against its side wall. The sealing plug can prevent water from seeping into the shell from the screw connection position, thus improving the sealing performance of the power bank. Multiple protrusions on the silicone seal are inserted into multiple display through holes to seal against its inner side wall. A button cap is installed in the mounting hole to seal against its side wall. This can achieve overall waterproofing of the power bank, improve the overall waterproofing effect, thereby reducing the failure rate and extending the service life.

[0008] To better address the aforementioned technical deficiencies, this utility model also offers a superior technical solution:

[0009] In some embodiments, the control circuit board is electrically connected to a charge / discharge connector line, which is provided with an annular sealing groove. One side wall of the annular sealing groove is in sealing contact with the inner wall of the housing, and the other side wall is in sealing contact with the outer wall of the housing. This prevents water leakage at the connection point between the charge / discharge connector line and the housing.

[0010] In some embodiments, the front cover is provided with a mounting groove, and a USB interface and a TYPE-C interface, which are electrically connected to the control circuit board, are installed at two connection holes at the bottom of the mounting groove. A silicone sealing cover is fitted inside the mounting groove. Power can be supplied to the device through the USB interface and the TYPE-C interface, and the silicone sealing cover can prevent rainwater from entering the USB interface and the TYPE-C interface.

[0011] In some embodiments, the outer side of the housing is provided with a receiving groove into which the charging / discharging connector cable can be inserted, and the side wall of the receiving groove is provided with a snap-fit ​​protrusion to prevent the charging / discharging connector cable from detaching from the receiving groove. This allows for the storage and fixation of the charging / discharging connector cable.

[0012] In some embodiments, the countersunk hole consists of a blind hole and a through hole at the bottom of the blind hole. The sidewall of the blind hole has an annular groove, and the outer sidewall of the sealing plug has an annular protrusion. The annular protrusion engages with the annular groove, creating a sealing contact. This engagement of the annular protrusion and groove prevents the sealing plug from separating from the blind hole, ensuring that the sealing effect is not affected.

[0013] In some embodiments, both the annular protrusion and the annular groove are semi-circular in shape. Attached Figure Description

[0014] Figure 1 A schematic diagram of a portable backup power supply according to one embodiment of the present invention;

[0015] Figure 2 An exploded view of a portable backup power bank.

[0016] Figure label:

[0017] 1. Housing; 11. Front cover; 111. Display through hole; 112. Mounting hole; 12. Bottom cover; 2. Battery pack; 3. Conductive plate; 4. Control circuit board; 5. Silicone seal; 6. Button cap; 7. Waterproof rubber ring; 8. Sealing plug; 9. Silicone sealing cover; 10. Charge / discharge connector cable; 101. Annular sealing groove. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, and fixing should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0021] refer to Figures 1 to 2 As shown, the present invention provides a portable backup power supply, comprising: a housing 1, a battery pack 2, a conductive plate 3, and a control circuit board 4. The battery pack 2, the conductive plate 3, and the control circuit board 4 are disposed inside the housing 1, and the battery pack 2 and the conductive plate 3 are electrically connected to the control circuit board 4 respectively.

[0022] The housing 1 includes a front shell 11 and a bottom shell 12. The front shell 11 is provided with multiple display through holes 111 and a mounting hole 112. A light-transmitting silicone sealant 5 is provided at the position of the display through hole 111. Multiple protrusions on the silicone sealant 5 are inserted into the multiple display through holes 111 respectively. The protrusions are in sealing contact with the inner side wall of the display through hole 111. A button cap 6 made of silicone material is installed in the mounting hole 112 and is in sealing contact with its side wall. A conductive plate 3 is fixed to the inside of the front shell 11 by screws and abuts against the silicone sealant 5 and the button cap 6. Multiple power indicator LEDs for displaying power and a switch button are electrically connected to the conductive plate 3. The multiple power indicator LEDs are placed in the grooves on the multiple protrusions of the silicone sealant 5 respectively. The switch button is placed in the button cap 6. Pressing the button cap 6 can press the switch button to trigger it. After the switch button is triggered, the power indicator LEDs light up. The remaining power is displayed by the number of power indicator LEDs that are lit. The power indicator LEDs are turned off after a set time.

[0023] A waterproof rubber ring 7 is provided between the front shell 11 and the bottom shell 12. The bottom of the bottom shell 12 is provided with three, four, five or more countersunk holes. The threaded ends of multiple screws pass through the multiple countersunk holes one by one and lock into the threaded holes on the front shell 11 body 1, thereby fixing the front shell 11 and the bottom shell 12 together. Each countersunk hole is provided with a sealing plug 8 that seals against its side wall. The sealing plug 8 is cylindrical.

[0024] The front cover 11 has a mounting slot with two connection holes at the bottom. A USB interface and a TYPE-C interface are installed at the two connection holes. The USB interface and the TYPE-C interface are electrically connected to the control circuit board 4. A silicone sealing cover 9 is installed in the mounting slot to cover the USB interface and the TYPE-C interface.

[0025] The control circuit board 4 is electrically connected to the charging and discharging connector line 10. The charging and discharging connector line 10 is provided with an annular sealing groove 101. One side wall of the annular sealing groove 101 is in sealing contact with the inner side wall of the housing 1, and the other side wall is in sealing contact with the outer side wall of the housing 1.

[0026] The outer side of the housing 1 is provided with a receiving groove into which the charging and discharging connector wire 10 can be inserted. One or two side walls of the receiving groove are provided with snap-fit ​​protrusions to prevent the charging and discharging connector wire 10 from leaving the receiving groove.

[0027] In some embodiments, the countersunk hole is composed of a blind hole and a through hole at the bottom of the blind hole. An annular groove is provided on the inner wall of the blind hole, and an annular protrusion is provided on the outer wall of the sealing plug. The annular protrusion fits into the annular groove and the annular protrusion and the annular groove seal against each other. Both the annular protrusion and the annular groove have a semi-circular structure.

[0028] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A portable backup power bank, characterized in that, include: The housing includes a battery pack, a conductive plate, and a control circuit board installed within it. The battery pack and conductive plate are electrically connected to the control circuit board. The housing comprises a front shell and a bottom shell. The front shell has multiple display through holes and a mounting hole. A light-transmitting silicone sealant is provided at the position of each display through hole. Multiple protrusions on the silicone sealant are inserted into the multiple display through holes and make sealing contact with the inner sidewall of the display through holes. A button cap made of silicone is installed in the mounting hole and makes sealing contact with its sidewall. The conductive plate is fixed to the inside of the front shell, and multiple power indicator LEDs on it are placed in the grooves on the multiple protrusions. The switch button on it is placed in the button cap. A waterproof rubber ring is provided between the front shell and the bottom shell. The bottom of the bottom shell has multiple countersunk holes. The threaded ends of multiple screws pass through the multiple countersunk holes and lock into the threaded holes on the front shell. A sealing plug is provided in each countersunk hole and makes sealing contact with its sidewall.

2. The portable backup power bank according to claim 1, characterized in that, The control circuit board is electrically connected to a charging / discharging connector line, and an annular sealing groove is provided on the charging / discharging connector line. One side wall of the annular sealing groove is in sealing contact with the inner side wall of the housing, and the other side wall is in sealing contact with the outer side wall of the housing.

3. A portable backup power bank according to claim 1 or 2, characterized in that, The faceplate is provided with a mounting groove, and a USB interface and a TYPE-C interface that are electrically connected to the control circuit board are installed at the two connection holes at the bottom of the mounting groove. A silicone sealing cover is installed inside the mounting groove.

4. A portable backup power bank according to claim 2, characterized in that, The outer side of the housing is provided with a receiving groove into which the charging and discharging connector wire can be inserted, and the side wall of the receiving groove is provided with a snap-fit ​​protrusion to prevent the charging and discharging connector wire from leaving the receiving groove.

5. A portable backup power bank according to claim 1, characterized in that, The countersunk hole is composed of a blind hole and a through hole at the bottom of the blind hole. The side wall of the blind hole is provided with an annular groove, and the outer side wall of the sealing plug is provided with an annular protrusion. The annular protrusion fits into the annular groove, and the annular protrusion and the annular groove seal against each other.

6. A portable backup power bank according to claim 5, characterized in that, Both the annular protrusion and the annular groove have a semi-circular structure.

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