WO2018133657A1 - Wearable battery pack - Google Patents

Abstract

Disclosed in the present disclosure is a wearable battery pack. The wearable battery pack comprises a battery pack body and a wearable device. The battery pack body comprises a cell and a housing for accommodating the cell. The wearable device is used for being worn by a user, so that the battery pack body can be at least carried on the back of the user. The battery pack body is provided with a heat dissipation channel running through from one side of the battery pack body to the opposite side of the battery pack body. One side of the battery pack body through which the heat dissipation channel runs is located between the back of the user and the other side of the battery pack body when the user carries the battery pack body on the back. The present disclosure provides a wearable battery pack that can be carried on the back of the user. The battery pack has good heat dissipation performance, and can be comfortably carried on the back of the user.

Description

Wearable battery pack Technical field

The present disclosure relates to the field of battery pack technologies, and in particular, to a wearable battery pack.

Background technique

As the power source of portable power tools, the battery pack has always been the main link restricting the development of portable power tools. In the past, the output voltage of the battery pack was low, and when driving high-power electric tools, the problem of poor endurance was caused.

However, by increasing the number of cells and increasing the output voltage of the battery pack, the overall size and weight thereof are increased, which affects the comfort of the user, making it difficult for the user to use the power tool flexibly. And an increase in the number of cells will result in an increase in internal heat during charging and discharging of the battery pack.

Therefore, it is necessary to design a wearable battery pack that can provide a user with comfortable heat dissipation performance.

Summary of the invention

The present disclosure provides a wearable battery pack that has good heat dissipation performance.

The present disclosure adopts the following technical solutions:

A wearable battery pack comprising: a battery pack body comprising a battery core and a housing accommodating the battery core; and a wearable device for the user to wear so that the battery pack body can be carried at least by the user on the back; wherein the battery pack The body is provided with: a heat dissipation channel extending from one side of the battery pack body to the opposite side; the side of the battery pack body penetrated by the heat dissipation channel is located between the user's back and the other side when the user is carrying the battery pack body.

Optionally, the heat dissipation channel is parallel to the length direction of the cell.

Optionally, a plurality of cells surround the core channel; the cell channels are parallel to the length of the cell.

Optionally, a plurality of cells surround the core channel; the cell channel is parallel to the length of the cell; and the heat dissipation channel extends through the cell channel.

Optionally, the housing includes a first housing wall for at least forming a heat dissipation passage extending from one side of the battery pack body to the opposite other side.

Optionally, the housing comprises: a second housing wall having a receiving cavity for receiving the battery core; and the receiving cavity being closed relative to the heat dissipation channel.

Optionally, the housing includes: a first housing wall, at least for forming a heat dissipation passage extending from one side of the battery pack body to the opposite other side; and a second housing wall for forming the receiving cavity to receive the battery core; The receiving cavity is closed with respect to the heat dissipation channel; the first shell wall is integrally formed with the second shell wall.

Optionally, the battery pack body includes: display means for displaying the amount of power of the battery pack.

Optionally, the battery pack body comprises: an interface device for outputting or inputting electrical energy of the battery cell; and the interface device is electrically connected to the battery core.

Optionally, the battery pack body comprises: a circuit board electrically connected to the battery core to output the electrical energy of the battery core at a certain voltage.

Optionally, the ratio of the electrical energy capacity of the battery pack body to the total mass of the battery pack body is greater than 120 Wh/Kg.

Optionally, the maximum projection surface formed in the front-rear direction of the housing is defined as a first projection surface, and a ratio of a ratio of an area of the projection surface formed in the front-rear direction of the heat dissipation passage to an area of the first projection surface is a range of : 0.004 to 0.012.

A wearable battery pack comprising: a battery pack body including a battery core and a housing accommodating the battery core; and a wearable device for the user to wear to carry the battery pack to the back of the user; wherein the battery pack body includes The heat dissipation channel penetrates from one side of the battery pack body to the opposite side; the circuit board is electrically connected to the battery core to output the electric energy of the battery core at a certain voltage; the circuit board is provided with a through hole, and the heat dissipation channel penetrates through hole.

Optionally, the ratio of the sum of the areas of the projection surfaces formed by the through holes in the front-rear direction to the area of the projection surface formed by the circuit board in the front-rear direction is in the range of 0.01 to 0.07.

A wearable battery pack comprising: a battery pack device comprising a plurality of battery cells and a battery pack case accommodating the battery cells; a carrying device for wearing to the back of the user; and a first locking device formed with a first locking portion a second locking device formed with a second locking portion having a locked state and an unlocked state; the second locking portion locking the first locking portion in the locked state to maintain the relative positions of the first locking device and the second locking device Unlocking the first locking portion in an unlocked state to enable the first locking device to disengage the second locking device; wherein the first locking device is fixedly coupled to the battery pack device; the second locking device is fixedly coupled to the piggyback device; the second locking device comprises An operating portion for the user to control the second locking portion to enable the user to disengage the battery pack device from the piggyback device when needed.

Optionally, the first locking device is further formed with: a first rotating portion; the second locking device is further formed with: a second rotating portion that is rotatable about an axis; and the second rotating portion is coupled to the first rotating portion to enable When the locking portion is in the locked state, the backpack can be rotated relative to the battery pack device.

Optionally, the second rotating portion is coupled to the first rotating portion such that the carrying device can be rotated at a predetermined angle with respect to the battery pack device when the second locking portion is in the locked state.

Optionally, the first rotating portion further includes: a stopping surface for stopping the second rotating portion to rotate the second rotating portion at a predetermined angle about an axis.

A wearable battery pack comprising: a piggyback device for carrying a battery pack on a back of a user; a plurality of batteries for supplying electrical energy; a battery housing including a front housing and for forming a combination with the front housing A rear housing capable of accommodating an accommodation space of the battery core; an elastic member disposed between the front housing and the rear housing to seal a joint of the front housing and the rear housing.

Optionally, the joining direction of the front case and the rear case is parallel to the length direction of the battery core.

Optionally, the method further includes: a guiding groove surrounding the inner side of the battery casing to guide the water flow direction.

Optionally, the method further includes: a flow guiding hole disposed at one end of the flow guiding groove to allow the water guided through the guiding groove to flow out of the battery casing.

The present invention is advantageous in that it provides a wearable battery pack that can be carried by a user, and the battery pack has good heat dissipation performance and can be comfortably carried by the user.

DRAWINGS

1 is a structural view of a wearable battery pack as one of the embodiments;

Figure 2 is a structural view of the body of the battery pack of Figure 1;

Figure 3 is an exploded view of the body of the battery pack of Figure 2;

Figure 4 is a structural view of the cell arrangement of the battery pack body of Figure 1;

FIG. 5 is a schematic structural view of a heat dissipation channel and a housing as one of the embodiments; FIG.

6 is a schematic structural view of a heat dissipation channel and a housing of another embodiment;

Figure 7 is a view showing the internal structure of the front housing of the battery pack body of Figure 1;

Figure 8 is a cross-sectional view of the battery pack body of Figure 7 taken along line A-A;

Figure 9 is a cross-sectional view of the battery pack body of Figure 7 taken along line B-B;

Figure 10 is a front elevational view of the body of the battery pack of Figure 1;

Figure 11 is a rear elevational view of the body of the battery pack of Figure 1, with the main circuit board removed;

Figure 12 is an internal structural view of the battery pack body of Figure 1 after removing the housing;

Figure 13 is a structural view of a cable and a connector of the battery pack body;

Figure 14 is an internal structural view of the battery pack body of Figure 1 after removing the housing and the cable;

Figure 15 is an exploded view of Figure 14 for illustratively showing the connections between the various boards;

Figure 16 is an internal structural view of another perspective view of the battery pack body of Figure 1 after removing the housing and the cable;

17 is a schematic structural view of a front case and a rear case of the wearable battery pack of FIG. 1;

Figure 18 is an exploded view of a perspective view of the wearable battery pack of Figure 1;

Figure 19 is an exploded view of another perspective of the wearable battery pack of Figure 1;

Figure 20 is a schematic view showing the structure of a first locking device and a second locking device of an embodiment;

Figure 21 is a schematic structural view of another perspective view of the first locking device and the second locking device of one embodiment;

Figure 22 is a schematic structural view showing the combination of the first locking device and the second locking device of another embodiment;

Figure 23 is a schematic view showing the structure of a first locking device and a second locking device of another embodiment;

Figure 24 is a block diagram showing another perspective of the first locking device and the second locking device of another embodiment.

detailed description

The present disclosure will be specifically described below in conjunction with the drawings and specific embodiments.

Referring to FIG. 1, the wearable battery pack 100 includes a battery pack body 10 and a wearable device 20. The battery pack body 10 is used to provide a power source for the power tool. The wearable device 20 is worn by the user to carry the battery pack body 10 on the back of the user through the wearable equipment, so that the user can operate the power tool.

For convenience of description, as shown in Figure 2, define "up", "down", "above", "below", "left", "right", etc. The direction in which the body 10 is worn on the back of the user, wherein the side defining the back of the user is the front and the side away from the back of the user is the rear.

The battery pack body 10 includes a battery core 11 and a housing 12 that houses the battery cells 11. The housing 12 is generally box-shaped and the battery core 11 is housed in the housing 12. The battery pack body 10 has a large electrical capacity including a plurality of cells 11 connected in parallel or in series. The cells 11 are connected in series or in parallel through the connecting sheets 13 so that the battery pack body 10 can output a large amount of electric energy. Specifically, the output voltage of the battery pack body 10 is at least 56V. The battery cell 11 can employ a cylindrical rechargeable lithium battery as shown in Fig. 3, and has a nominal voltage of 4V. The battery pack 100 has a large electrical energy capacity, and the ratio of the electrical energy capacity to the total mass of the battery pack is greater than 120 Wh/Kg. Further, the ratio of the electrical energy capacity of the battery pack body to the total mass of the battery pack body is greater than 140 Wh/Kg.

In order to arrange the cells 11 in a certain form, as shown in FIG. 3, the battery pack body 10 further includes a bracket 14 for supporting the battery core 11 so that the plurality of batteries 11 are integrally formed to be assembled to In the housing 12. Specifically, the battery cells 11 are disposed along the front-rear direction of the casing 12, that is, the longitudinal direction of the battery cells 11 is parallel to the front-rear direction of the casing 12. This ensures that the housing 12 is compact in the front-rear direction and can accommodate a sufficient number of cells 11 to store the battery pack body 10 with sufficient electrical energy. The side of the bracket 14 remote from the battery core is further provided with a support column 141 to reduce the vibration when the battery pack is dropped, and to enhance the anti-drop performance of the battery pack. An insulating member 131 is disposed between the bracket 14 and the main circuit board 16. The front-rear direction is defined as the direction in which the height of the battery pack case is located, and the left-right direction is the direction in which the width of the battery pack case is located. Wherein, the ratio of the length of the cell unit to the width of the casing is greater than 1.5. Therefore, the battery pack is made more compact in the front-rear direction while providing sufficient accommodation space, and the user is prevented from being burdened by the battery pack because the battery pack is too thick.

Referring to FIG. 4, a plurality of cells 11 are formed around the core channel 111 to form a heat dissipation space between the cells 11 to facilitate heat dissipation of the cells 11. Specifically, each of the six cells 11 surrounds a hexagonal structure, and the center of the hexagonal structure surrounds the formed cell channel 111. More specifically, a heat conducting block 112 is disposed in the cell passage 111, and the heat conducting block 112 forms a heat conducting passage 113 for heat dissipation. When the heat conducting block 112 is placed in the cell passage 111, the heat conducting block 112 conducts the heat of the cell, and an air flow is formed in the longitudinal direction parallel to the cell through the heat conducting channel 113 to accelerate the heat dissipation of the cell 11. The heat transfer passage 113 is disposed relative to the housing passage such that the housing passage can penetrate the heat conduction passage 113. The heat conduction block 112 accelerates the conduction of heat of the battery core 11, thereby accelerating the heat dissipation of the battery pack.

The battery pack body 10 is provided with a heat dissipation passage 124 that penetrates from one side of the battery pack body 10 to the opposite side. The side through which the battery pack body 10 is penetrated by the heat dissipation passage 124 is located between the user's back and the other side when the user is carrying the battery pack body 10. Specifically, the housing 12 forms a heat dissipation passage 124 that penetrates from the front side of the battery pack body 10 to the opposite rear side. The heat dissipation passage 124 penetrates the core passage 111 to enable the external airflow to flow in the front-rear direction of the battery pack body 10, so that the airflow can pass between the back of the user and the front side surface, and is reduced to be transmitted to the user's back due to the temperature rise inside the battery pack body 10. The heat thus prevents the user's back from getting hot and sweating.

Referring to FIG. 5, as a possible implementation manner, the battery pack body 10 includes a first shell wall 121' and a second shell wall 122' formed from the front side of the battery pack body 10 to The rear side heat dissipation channel 124', the second housing wall 122' is used to form the receiving cavity 123' to accommodate the battery cell 11. The accommodating chamber 123' is in communication with the heat dissipation passage 124'.

Referring to FIGS. 6 and 8, as another possible embodiment, the housing 12 includes a first housing wall 121 and a second housing wall 122. Wherein, the first shell wall 121 is at least used to form a heat dissipation passage 124 penetrating from the front side to the rear side of the battery pack body 10, and the second shell wall 122 is configured to form the accommodating cavity 124 to accommodate the battery core 11, the accommodating cavity 123 being opposed to The heat dissipation passage 124 is closed. In this way, while the airflow flows through the heat dissipation channel 124 to dissipate heat, it is possible to prevent external dust or water from entering the accommodating cavity 124 and possibly causing damage to the cell 11. Specifically, the first shell wall 121 and the second shell wall 122 may be made of the same material. Alternatively, the first shell wall 121 and the second shell wall 122 may also be integrally formed.

The maximum projection surface formed by the housing in the front-rear direction is defined as a first projection surface, and the maximum projection surface formed in the left-right direction is a second projection surface. The ratio of the sum of the areas of the projection surfaces formed in the front-rear direction of the heat dissipation passage 124 to the area of the first projection surface ranges from 0.004 to 0.012.

Optionally, the ratio of the sum of the areas of the projection surfaces formed in the front-rear direction of the heat dissipation channel 124 to the area of the first projection surface ranges from 0.004 to 0.008.

Optionally, the ratio of the sum of the areas of the projection surfaces formed in the front-rear direction of the heat dissipation channel 124 to the area of the first projection surface ranges from 0.008 to 0.012. Referring to Figure 7, the battery pack body 10 further includes a main circuit board 16 for carrying voltage conversion circuitry and control elements. The main circuit board 16 is electrically connected to the battery core 11 , and the electric energy stored in the battery core 11 is converted into a voltage value output by the electric power tool or other electric device through the voltage conversion circuit carried on the main circuit board 16 to output the electric power tool or Powered by an electrical device. The main circuit board 16 is disposed between the battery core 11 and the housing 12, and the plane of the largest surface of the main circuit board 16 is parallel to the largest surface of the housing 12. Specifically, the main circuit board 16 is disposed between the insulating member 13 and the rear side of the housing 12, and the direction of the main circuit board 16 is parallel to the rear surface of the housing 12, ensuring that the main circuit board 16 has sufficient control element placement area. At the same time, the internal space of the casing 12 occupied by the main circuit board 16 is reduced. The main circuit board 16 is provided with a through hole 161. The through hole 161 is disposed with respect to the cell passage 111, and the heat dissipation passage 124 penetrates the through hole 161 and the core passage 111, so that the external airflow can pass between the back of the user and the front side surface, thereby reducing The heat transferred to the back of the user due to an increase in the temperature inside the battery pack body 10.

The ratio of the sum of the areas of the projection surfaces formed in the front-rear direction of the through hole 161 to the area of the projection surface formed in the front-rear direction of the main circuit board 16 is in the range of 0.01 to 0.07. Optionally, the ratio of the sum of the areas of the projection surfaces formed by the through holes 161 in the front-rear direction and the area of the projection surface formed by the main circuit board 16 in the front-rear direction is in the range of 0.02 to 0.07.

Referring to FIG. 7, the battery pack body 10 further includes a plurality of interface devices 17 for outputting and/or inputting electrical energy. The interface device 17 includes a cable 171. Referring to FIGS. 10 to 13, the cable 171 includes an external plug 172 at one end of the cable for connecting an external device such as a power tool or the like; and an internal plug 173 at the other end of the cable. The connecting piece 13 is electrically connected to the battery cell 11 such that the electric energy of the battery cell 11 is output through the positive electrode 13a of the connecting piece and the negative electrode 13b of the connecting piece. The connector 174 is connected to the positive electrode 13a and the negative electrode 13b of the connecting piece by wires.

Referring to FIGS. 10 and 11, the housing 12 includes a first receiving portion 1210 and a first closure 1211, wherein the first receiving portion 1210 has a first receiving portion capable of accommodating the inner plug 173, the connecting joint 174, and a portion of the electric wires. The cavity 1212, the inner plug 173 and the connector are located in the first receiving cavity 1212; the first closing member 1211 is for closing the first receiving cavity 1212. Specifically, the first closure member 1211 detachably closes the first receiving cavity 1212. For example, the first closure 1211 is fixed to the first receiving portion 1210 by a screw to close the first receiving cavity 1212. In addition, the first closure member 1211 may also include a sealing ring to seal the first receiving cavity 1212 to achieve a dustproof and waterproof effect.

The first housing portion 1210 is located at a position on the back side of the housing 12 near the upper end of the housing 12. The first receiving portion 1210 includes an opening 1213 through which the electric wire extends along the upper portion of the housing 12. More specifically, a card slot 1214 is provided at the upper end of the housing 12 opposite the opening 1213 to secure the cable. This configuration prevents the cable from coming into contact with the ground or other surface when the user sits on the ground while carrying the battery pack body 10 on its back.

Referring to FIG. 13, the inner plug 173 and the joint 174 are a pair of plug connectors. When the cable needs to be replaced, only the first closing member 1211 is disassembled, and the inner plug 173 and the connecting connector 174 can be disassembled to disassemble the cable, so that the cable can be replaced without disassembling the entire casing, which is convenient for maintenance.

The housing 12 also includes a second receiving portion 1220 and a second closure member 1221. The second receiving portion 1220 has a second receiving cavity 1222 capable of accommodating the fuse 132. One end of the fuse 132 is electrically connected to the connecting piece, and the other end is electrically connected to the connecting joint 174. Specifically, the connecting piece 12 has a positive electrode 12a and a negative electrode 12b that output electric energy of the battery. One end of the fuse 132 is respectively connected to the positive electrode 12a and the negative electrode 12b of the connecting piece via a wire, and the other end of the fuse 132 is connected to the connecting joint 174 through a wire. The second closure member 1221 is detachably coupled to the second receiving portion 1220 to close the second receiving portion 1220. When the fuse 132 needs to be replaced, the replacement of the fuse 132 can be achieved only by disassembling the second closure member 1221.

Obviously, the first receiving portion 1210 and the second receiving portion 1220 can also be integrated into one receiving cavity, and the inner plug 173, the connecting joint 174 and the fuse 132 are all located in the same receiving portion.

In addition, the external plug 172 of the cable can also be connected to the charger, and the battery 11 is charged by the charger when the battery pack body 10 is low in power.

The interface device 17 further includes a USB interface 175. One end of the USB interface 175 is electrically connected to the main circuit board 16, and the other end is used for accessing a power device having a USB interface, such as a mobile phone. Obviously, the battery pack body 10 can include the cable 171 as the first interface device 17, and can also include other DC output interfaces as the second interface device 17, wherein the first interface device 17 can output the battery core 11 with the first voltage. The second interface device 17 can output the electrical energy of the battery cell 11 with a second voltage that is less than the first voltage. The second voltage can be 5V or 12V. As one of the embodiments, the second interface device 17 can be electrically connected to the heating clothes, and the electric energy of the battery pack is output through the second interface device to heat the heating clothes.

The battery pack body 10 also includes a display device 18 for displaying the battery pack charge. Specifically, the display device 18 is electrically connected to the main circuit board 16 and disposed at a position close to the upper end of the main circuit board 16 to facilitate the user's reading while reducing the length of the connection. More specifically, the display device 18 includes a display switch 181 and a ring portion 182 for the user to operate by turning on or off the electrical connection of the display device 18 to the main circuit board 16 to select whether the remaining battery capacity of the battery pack needs to be displayed. . The ring portion 182 is divided into a plurality of display units 183, and the remaining power of the battery pack body 10 is displayed by the number of lights displayed by the display unit 183. The more the display unit 183 lights up, the larger the remaining battery capacity of the battery pack body 10. To remind the user, different colors can be used as the lighting of the display unit 183. For example, when the remaining power is sufficient, the display unit 183 is displayed in green, and when the remaining power is small, the display unit 183 is illuminated in red. Of course, other display devices 18 capable of displaying the amount of electricity, such as direct reading of the liquid crystal panel, etc., may also be employed.

The main circuit board 16 further includes a detecting module for detecting the remaining power of the battery, and the display device is electrically connected to the main circuit board.

Referring to FIGS. 14 to 16, the battery pack further includes a temperature measuring circuit board 162 and a secondary circuit board 163. The temperature measuring circuit board 162 is provided with an NTC for detecting the temperature of the battery unit. Of course, the temperature measuring circuit board 162 can also detect the temperature of the battery unit by using other temperature measuring elements. The main body of the temperature measuring circuit board 162 is provided with a conductive line, that is, an internal wiring, and a temperature measuring wiring port 1621 electrically connected to the conductive line, and the temperature measuring wiring port 1621 is disposed at one side of the temperature measuring circuit board 162. As one of the embodiments, the temperature measuring wiring port 1621 is disposed on the right side of the temperature measuring circuit board 162. In addition, in one embodiment, the temperature measuring circuit board can be integrated with the connecting piece as a circuit board. In another embodiment, the temperature measuring circuit board and the connecting piece are respectively two separate circuit boards.

The main body of the main circuit board 16 is provided with a wire layer and a main wiring port 1611 electrically connected to the wire layer. The main wiring port 1611 and the temperature measuring wiring port 1621 are connected by a pluggable wire 1634 to effect transmission between signals. The signals herein include electrical signals and/or communication signals that are not limited to voltage signals, temperature signals, current signals, and the like.

The secondary circuit board 163 serves as a lead board, and includes a secondary access interface 1631, a secondary outgoing interface 1632, and a secondary routing layer. The secondary routing layer is electrically connected to the secondary access interface 1631 and the secondary outgoing interface 1632. It should be noted that, in a specific embodiment, the battery pack may include a secondary circuit board; in another specific embodiment, the battery pack may include a plurality of secondary circuit boards. For example, referring to FIG. 15, the battery pack includes two secondary circuit boards 163. One of the secondary circuit boards is electrically connected to the temperature measuring circuit board through the pluggable wires 1636, and the other of the secondary circuit boards and the main circuit. The board is electrically connected, and the electrical connection between the two secondary boards can be established through external wires, or the electrical connection can be established through the internal routing of the temperature measuring circuit board to realize signal transmission.

Referring to FIG. 12 and FIG. 15 to FIG. 16 , the secondary access interface 1631 is electrically connected to the temperature measuring wiring port 1621 , and the secondary access interface 1631 is electrically connected to the main wiring port 1611 . Specifically, the secondary access interface 1631 and the temperature measuring wiring port 1621 are electrically connected by the first electric wire 1634. The first electric wire 1634 includes a first terminal 1634a and a second terminal 1634b, and the first terminal 1634a and the temperature measuring wiring port 1621 are inserted and removed. The second terminal 1634b is plugged and connected to the secondary access interface 1631. The secondary connection interface 1632 is electrically connected to the main connection port 1611 through the second electric wire 1635. The second electric wire 1635 includes a third terminal 1635a and a fourth terminal 1635b. The third terminal 1635a is connected to the secondary connection interface 1632. The four terminals 1635b are pluggably connected to the main wiring port 1611.

Through the design of the secondary circuit board, the wiring clutter caused by the direct connection between the temperature measuring circuit board and the main circuit board is avoided, which is disadvantageous to the defects of the lead wire arrangement and assembly in the battery pack. It should be noted that the number and position of interfaces of each circuit board are described herein for convenience of description. In fact, the number of interfaces and the actual position and number setting of each circuit board can be designed according to actual needs.

Referring to FIGS. 14 and 15, the main circuit board 16 is disposed on the rear side of the bracket 14 near the housing, the temperature measuring circuit board 162 is disposed on the front side of the bracket near the housing, and the secondary circuit board 163 is disposed in the upper and lower sides of the bracket. One side. The secondary output interface 1632 is disposed on a side of the secondary circuit board 163 that is adjacent to the temperature measurement circuit board 162. Possibly, in another embodiment, the main circuit board includes a plurality of main wiring ports, and the secondary circuit board includes a plurality of secondary connection interfaces, and the respective ports are electrically connected by pluggable wires. As one of the embodiments, the piggyback battery pack further includes a plurality of secondary circuit boards, which are respectively disposed at different positions to simplify the lead connection inside the battery pack.

Referring to FIGS. 15 and 16, the bracket 14 further includes a receiving portion 142 disposed on the lower side of the bracket to receive the first electric wire 1634 when the first electric wire 1634 is electrically connected to the temperature measuring interface. Of course, the housing portion may be provided at other positions to accommodate the electric wires.

A handle 19 is provided at the upper end of the battery pack body 10 for the convenience of the user. The handle 19 can employ a soft handle 19 having a cushioning function for carrying the battery pack body 10, and can also be used to carry a piggyback battery pack as a whole. It can alleviate the weight of the battery pack body 10 while improving the hand comfort when the user carries the battery pack body 10 or the piggyback battery pack.

Referring to FIGS. 7 and 10, the upper end of the housing 12 is formed with a housing recess portion 128. The handle 19 includes a handle fixing member 191 and a carrying member 192 fixed to the upper end of the housing 12 and respectively located at the left and right sides of the housing groove portion 128, and the carrying member 192 is disposed between the handle fixing members 191. The projection formed by the housing groove portion 128 in the front-rear direction has a groove surface, and the maximum distance of the projection member formed on the front and rear projections from the groove surface is 40 mm. The selection of the maximum distance avoids foreign objects such as leaves, grass and vines that may be stuck in the groove portion of the casing when the handle is in a free state, and the space formed by the groove portion of the casing is convenient for the user to reach into the palm to facilitate the grip. At the same time, the size of the battery pack body in the up and down direction is further reduced, so that the structure is more compact.

Referring to FIG. 3, the housing 12 includes a front housing 125 and a rear housing 126 that are coupled in a direction parallel to the length of the battery core, that is, the front housing 125 and the rear housing 126. Combined in the front and rear direction. An elastic member 15 is disposed between the front housing 125 and the rear housing 126 for closing the junction of the front housing 125 and the rear housing 126 to prevent dust and water from entering the interior of the housing 12. Specifically, the elastic member 15 is a resilient washer.

The front housing 125 includes a front flow guiding wall 152a disposed inside the front housing, and the front air guiding wall 152a extends perpendicularly to the front surface of the housing toward the inside of the housing. The rear housing 125 includes a rear air guiding wall 152b disposed inside the rear housing, and the rear air guiding wall 152b extends perpendicularly to the rear surface of the housing toward the inside of the housing. The front flow guiding wall 152a and the rear guiding flow wall 152b are correspondingly disposed in a direction parallel to the length of the battery core 11. When the front housing 125 and the rear housing 126 are coupled in parallel with the longitudinal direction of the battery core 11, the front flow guiding wall 152a and the rear guiding flow wall 152b are combined to form an enclosed space capable of accommodating the battery cells. The front deflector wall 152a, the rear deflector wall 152b, and the housing outer casing wall 127 form a flow guiding trough to direct the flow of water to prevent water from entering the enclosed space. A flow guiding hole 153 is provided at the lower end of the casing 12, and water entering the inside of the casing 12 flows through the flow guiding groove 151 and then flows out from the flow guiding hole 153.

Referring to FIGS. 7-9, the front flow guiding wall 152a includes a first stopping surface 154 and a second stopping surface 155. A groove portion 156 is disposed between the first stopping surface 154 and the second stopping surface 155. When the front case 125 and the rear case 126 are coupled in the front-rear direction, the protrusion 157 of the rear guide wall 152b is engaged with the groove portion 156, and the first stop face 154 and the second stop face 155 limit the back guide. The movement of the flow wall 152b in the left-right direction further blocks water and dust from entering the battery cell 11 and the main circuit board 16 while the front case 125 and the rear case 126 are tightly coupled. As an embodiment, an elastic member 15 may be disposed at the junction of the front flow guiding wall 152a and the rear flow guiding wall 152b.

The wearable device 20 includes a harness 21 for a user to carry the battery pack body 10 on the user's back and a waistband 22 that can be wrapped around the user's waist so that the battery pack body 10 can be securely secured and carried on the user's back. Most of the weight of the battery pack body 10 can be carried on the user's buttocks by the waistband 22, thereby reducing the burden on the user's shoulders. The belt 22 and the harness 21 are detachably connected by a connecting belt. The waistband 22 and the harness 21 can be used separately or together by a connecting belt.

The wearable battery pack 100 further includes a battery pack body 10, a wearable device 20, a first locking device 31, and a second locking device 32. The battery pack body 10 and the wearable device 20 cooperate to form a detachable movable connection between the battery pack body 10 and the wearable device 20.

Referring to FIGS. 17 and 18, the first locking device 31 is fixedly coupled to the battery pack body 10. Specifically, the first locking device 31 is fixed to the front surface of the battery pack body 10 near the back of the user. The second locking device 42 is fixedly coupled to the wearable equipment 20. The first locking device 31 is formed with a first locking portion 311 and a first rotating portion 312, and the second locking device 41 is formed with a second locking portion 411 and a second rotating portion 412. The second locking portion 411 has a locked state and an unlocked state, and the second locking portion 411 locks the first locking portion to maintain the relative positions of the first locking device 31 and the second locking device 41 in the locked state and unlocks the first in the unlocked state The locking portion 311 allows the first locking device 31 to be disengaged from the second locking device 41. The second locking device 41 also includes an operating portion 416 for the user to operate to disengage the battery pack body 10 from the wearable device 20 when needed.

As one of the specific embodiments, referring to FIG. 17 and FIG. 18, the first locking device 31 is fixed on a plane of the battery pack body 10 close to the back of the user, that is, the first locking device 31 is fixed to the battery pack body 10. On the front surface. Specifically, the first locking device 31 includes a first locking portion 311 and a first rotating portion 312. More specifically, the first locking portion 311 includes a first elastic piece 312 and a rail groove 314, and the first rotating portion 312 is formed with a first curved surface 316 that is coupled to the rail groove 314.

The second locking device 41 is fixed to the plane of the wearable equipment 20 carrying the battery pack. Specifically, the second locking device 41 includes a second locking portion 411, a second rotating portion 412, and an operating portion 416 for a user to operate. More specifically, the second locking portion 411 includes a guide rail 414 that can engage the rail groove 314 and the first curved surface 316 and a second elastic piece 413 that mates with the first elastic piece 313. The guide rail 414 is coupled to the guide rail groove 314 from the bottom to the top under the guide of the guide rail groove 314, while the second elastic piece 413 presses the first elastic piece 313 in parallel with the longitudinal direction of the battery core 11, and the guide rail stop surface 315 of the guide rail groove 314 is restricted. The movement of the guide rail in the left-right direction further causes the guide rail to be locked in the guide rail groove 314 in the left-right direction.

The first rotating portion 312 includes a first curved surface 316, and the second rotating portion 412 includes a second curved surface 415 that is engageable with the first curved surface 3163. The rail 414 is coupled to the rail slot 314 from bottom to top, and the second curved surface 415 is coupled to the first curved surface 316. The first curved surface 316 acts as a stop surface to stop the downward movement of the battery device due to gravity. The displacement causes the rail 414 to be in a locked state. When the guide rail 414 is in the locked state, the second rotating portion 412 is rotatable at a predetermined angle about an axis 410 parallel to the longitudinal direction of the battery core 11. Specifically, the second curved surface 415 is rotated at a predetermined angle with respect to the first curved surface 316 in the left-right direction, wherein the preset angle ranges from 0 to 5 degrees. In this way, when the user uses the wearable device 20 to carry the battery pack, a small angle (0 to 5°) adjustment can be formed in the left and right direction, so that the user is more comfortable to carry, and the shoulder or the waist which is operated by the battery pack body 10 for a long period of time is relieved. Fatigue.

In order to satisfy the user's ability to quickly disengage the battery pack body 10 from the wearable equipment 20 when needed, the second locking device 41 further includes an operating portion 416 for the user to operate to control the second locking device 41. Specifically, the operating portion 416 is a protrusion disposed on the second elastic piece 413, and the user presses the protrusion such that the second elastic piece 413 is substantially in the same plane as the front plane of the battery pack body, that is, the second elastic piece 413 is at Unlocked status. The separation of the second locking device 41 and the first locking device 31 can be achieved by moving the guide rail 414 from the top to the bottom along the rail groove 314, thereby achieving rapid disengagement of the wearable device 20 and the battery pack body 10. It should be noted that the wearing equipment 20 herein may be a strap 21 for the user to wear to the shoulder, a waist belt 22 for the user to wrap around the waist, or a combination of the two.

Referring to FIGS. 20 to 21, the first locking device 32 includes a first elastic piece 321, a slide rail 322, and a first curved surface 323. The first elastic piece 321 is disposed at a lower end of the sliding rail 322. The first elastic piece 321 has a locked state and an unlocked state. The second locking device 42 includes a chute 421 and a second curved surface 422. In the present embodiment, the second locking device 42 is fixedly coupled to the wearable device 20.

The sliding groove 421 is coupled to the sliding rail 322 from bottom to top. The first curved surface 323 is combined with the second curved surface 422. The upper surface of the first elastic piece 321 acts as a stop surface to move the stop sliding slot 421 downward. A tab 321 is in a locked state to position the first locking device 32 and the second locking device 42 in an opposite position, thereby allowing the wearable device 20 to be coupled to the battery pack body 10 to limit the downward displacement of the battery pack due to its own weight.

When the first elastic piece 321 is in the locked state, the second curved surface 422 is rotatable about an axis 420 parallel to the longitudinal direction of the battery core 11. Specifically, the second curved surface 422 is rotated at a predetermined angle with respect to the first curved surface 323 in the left-right direction, and the left and right planes of the sliding rail 322 serve as limiting surfaces respectively to restrict the rotation of the second curved surface 422 about the axis 420. Angle, the preset angle ranges from 0 to 5°. In this way, when the second locking device 442 is combined with the first locking device 32, when the user uses the wearing device 20 to carry the battery pack body 10, the battery pack can be rotated at a small angle with respect to the wearing device, so that the user is more comfortable and relieves the long-term burden. The fatigue of the shoulder or waist of the battery pack body 10 working.

For the convenience of the user's operation, the first locking device 32 further includes an operating portion 324 for the user to operate to control the first elastic piece 321. Specifically, the operation portion 324 is disposed at one ends of the left and right sides of the first elastic piece 321. When the user presses the operation portion 324, the first elastic piece 321 is in an unlocked state. In the present embodiment, the first locking device 32 is fixedly coupled to the battery pack body 10. When the user needs, the operation portion 324 is pressed to cause the upper surface of the first elastic piece 321 to be displaced in the front-rear direction, the first elastic piece 321 is in the unlocked state, and the sliding groove 421 is separated from the guide rail from top to bottom, thereby implementing the wearing device 20 and the battery pack body. 10 quickly detached.

In order to prevent the battery pack from falling when the wearable device 20 and the battery pack body 10 are quickly disengaged, the first locking device 32 further includes a stopper portion 325 which is disposed on the lower side of the first elastic piece 321. Specifically, the stopping portion 325 includes two stopping bars arranged at an angle, and the extension wires of the two stopping bars intersect on the upper side of the stopping bar. When the user presses the operating portion 324 to disengage the battery pack body 10 from the wearing device 20, the stopping portion 325 stops the downward displacement of the battery pack due to its own gravity, and the user removes the wearing device 20 to avoid the possible possibility of the battery pack body 10. Drop directly.

Referring to FIGS. 22 to 24, the first locking device 33 includes a latch 331 and a latching groove 332. The latch 331 and the latching groove 332 cooperate with each other such that the first locking portion has a locked state and an unlocked state. When the buckle 331 is slid in the first position from the bottom to the top in the first position, the first locking portion is in the locked state, and the first locking portion is in the unlocked state when the buckle 331 is slid from the top to the bottom. To guide the second locking device 43 from the bottom to the top to the first locking device 33, the first locking device 33 further includes a guiding groove 333 and a first curved surface 334.

The second locking device 43 includes an arcuate guide 431, a second curved surface 432, and an opening 433. The buckle 331 is at least partially located in the opening 433. The opening 433 is formed with an upper surface 434 that mates with the upper surface 335 of the latching groove.

The curved guide rail 431 is coupled to the guide groove 333 from bottom to top, and the user operates the lock 331 to lock the first locking device 33. At this time, the lock 331 is in the first position, and the upper surface 434 of the opening and the upper surface of the lock groove The 335 contact utilizes the upper surface of the latching groove 332 to stop the downward displacement of the second locking device 43. In this manner, the second locking device 43 fixedly coupled to the wearable device 20 is coupled from the bottom to the top to the first locking device 33 fixedly coupled to the battery pack body 10, and the user operates the latch 331 to cause the first locking device 33 to be in the locked state. In turn, the wearable device 20 is coupled to the battery pack body 10, and the downward displacement of the battery pack body 10 due to its own weight is avoided when the user wears the wearable device 20 to carry the battery pack body 10.

When the second locking device 43 is coupled to the first locking device 33 and the first locking device 33 is in the locked state, the second curved surface 432 is in contact with the first curved surface 334, and the second curved surface 432 is rotatable about an axis 430 so that The wearable device 20 is rotatable relative to the battery pack body 10. The opening 433 is also formed with a stop surface 435. As shown in FIG. 17, the stop surface 435 is respectively located on the left and right sides of the locking groove 332. When the second curved surface 432 is rotated about the axis 430, the stop surface 435 and the locking groove are formed. The left and right sides of the 332 cooperate to limit the angle of rotation of the second curved surface 432 about the axis 430. Specifically, the rotation angle ranges from 0 to 5 degrees. According to this design, while avoiding the instability of the battery pack body 10 affecting the user's operation, the fatigue of the shoulder or the waist due to the long-term carrying of the battery pack body 10 can be alleviated, so that the user is more comfortable.

The user operates the latch 331 to unlock the latch, and the upper surface of the latching groove is separated from the upper surface of the opening, so that the second locking device 43 is disengaged from the first locking device 33, thereby implementing the wearing device 20 and the battery pack body 10. Quick departure.

The basic principles, main features and advantages of the present disclosure have been shown and described above. It should be understood by those skilled in the art that the above-described embodiments are not intended to limit the disclosure in any way, and the technical solutions obtained by means of equivalent replacement or equivalent transformation are all within the scope of the disclosure.

Industrial applicability

The present disclosure provides a wearable battery pack that can provide good heat dissipation performance for the user to carry.

Claims (22)

A wearable battery pack that includes: a battery pack body comprising a battery core and a housing accommodating the battery core; Wearing equipment for the user to wear so that the battery pack body can be carried by the user at least on the back; among them, The battery pack body is provided with: a heat dissipation passage extending from one side of the battery pack body to the opposite side; The side of the battery pack body that is penetrated by the heat dissipation passage is located between the user's back and the other side when the user is carrying the battery pack body. The battery pack according to claim 1, wherein The heat dissipation channel is parallel to a length direction of the battery cell. The battery pack according to claim 1, wherein A plurality of the cells surround a cell channel; the cell channel is parallel to a length direction of the cell. The battery pack according to claim 1, wherein A plurality of the cells surround a core channel; the cell channel is parallel to a length direction of the cell; and the heat dissipation channel extends through the cell channel. The battery pack according to claim 1, wherein The housing includes: The first casing wall is configured to at least form the heat dissipation passage penetrating from one side of the battery pack body to the opposite other side. The battery pack according to claim 1, wherein The housing includes: a second housing wall having a receiving cavity for receiving the battery core; The receiving cavity is closed with respect to the heat dissipation channel. The battery pack according to claim 1, wherein The housing includes: a first shell wall for at least forming the heat dissipation passage penetrating from one side of the battery pack body to the opposite other side; a second shell wall for forming a receiving cavity to accommodate the battery core; The receiving cavity is closed with respect to the heat dissipation channel; The first shell wall is integrally formed with the second shell wall. The battery pack according to claim 1, wherein The battery pack body includes: a display device for displaying the amount of power of the battery pack. The battery pack according to claim 1, wherein The battery pack body includes: An interface device for outputting or inputting electrical energy of the battery cell; The interface device is electrically connected to the battery core. The battery pack according to claim 1, wherein The battery pack body includes: And a circuit board electrically connected to the battery cell to output the electrical energy of the battery core at a certain voltage. The battery pack according to claim 1, wherein The ratio of the electrical energy capacity of the battery pack body to the total mass of the battery pack body is greater than 120 Wh/Kg. The battery pack according to claim 1, wherein Defining a maximum projection surface formed in the front-rear direction of the housing as a first projection surface, and a ratio of a ratio of an area of a projection surface formed in the front-rear direction of the heat dissipation passage to an area of the first projection surface is a range of : 0.004 to 0.012. A wearable battery pack that includes: a battery pack body comprising a battery core and a housing accommodating the battery core; Wearing equipment for the user to wear to carry the battery pack to the back of the user; among them, The battery pack body includes: a heat dissipation passage extending from one side of the battery pack body to the opposite side; a circuit board electrically connected to the battery cell to output electrical energy of the battery core at a certain voltage; The circuit board is provided with a through hole, and the heat dissipation channel penetrates the through hole. The battery pack according to claim 13, wherein The ratio of the sum of the areas of the projection surfaces formed in the front-rear direction to the area of the projection surface formed in the front-rear direction of the through-hole is in the range of 0.01 to 0.07. A wearable battery pack that includes: a battery pack device comprising a plurality of battery cells and a battery pack housing accommodating the battery cells; a carrying device for wearing to the back of the user; a first locking device formed with a first locking portion; a second locking device formed with a second locking portion having a locked state and an unlocked state; The second locking portion locks the first locking portion in a locked state to maintain a relative position of the first locking device and the second locking device, and unlocks the first locking portion in an unlocked state to enable The first locking device can disengage the second locking device; Wherein the first locking device is fixedly coupled to the battery pack device; the second locking device is fixedly coupled to the piggyback device; the second locking device includes a user operable to control the second locking portion The operating portion is such that the user can disengage the battery pack device from the piggyback device when needed. A battery pack according to claim 15, wherein The first locking device is further formed with: First rotating portion; The second locking device is further formed with: a second rotating portion that is rotatable about an axis; The second rotating portion is coupled to the first rotating portion to enable the carrying device to rotate relative to the battery pack device when the second locking portion is in a locked state. A battery pack according to claim 16, wherein The second rotating portion is coupled to the first rotating portion to enable the carrying device to rotate at a predetermined angle with respect to the battery pack device when the second locking portion is in a locked state. A battery pack according to claim 16, wherein The first rotating portion further includes: a stop surface for stopping the second rotating portion to rotate the second rotating portion about a predetermined angle of the axis. A wearable battery pack that includes: Carrying equipment for causing the battery pack to be carried on the back of the user; a number of cells for providing electrical energy; a battery case including a front case and a rear case for combining with the front case to form a receiving space capable of accommodating the battery core; An elastic member disposed between the front case and the rear case to seal a joint of the front case and the rear case. A battery pack according to claim 19, wherein The joining direction of the front case and the rear case is parallel to the longitudinal direction of the battery core. A battery pack according to claim 19, wherein Also includes: The guide groove is surrounded along the inner side of the battery case to guide the direction of water flow. A battery pack according to claim 21, wherein Also includes: A flow guiding hole is disposed at one end of the flow guiding groove to allow a water flow guided through the flow guiding groove to flow out of the battery case.

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