Backpack type battery pack

Abstract

The utility model discloses a backpack battery pack which solves the problem that an output interface of an existing backpack battery pack is usually arranged on the right side and is not suitable for being operated by a left hand. The utility model provides a backpack type battery pack which comprises a shell and a battery pack, a containing cavity for containing the battery pack is formed in the shell, the backpack type battery pack further comprises an output terminal electrically connected with the battery pack, a sliding groove extending in the left-right direction is formed in the shell, and the output terminal is arranged in the sliding groove in a sliding mode. The output terminal is used for being connected with a power line of an external electric tool. According to the backpack type battery pack provided by the utility model, the output terminal can slide in the sliding chute to be arranged on the left side or the right side of the backpack type battery pack through the arrangement of the sliding chute for the output terminal to slide, so that the backpack type battery pack is suitable for operators who are used to work by a left hand or a right hand, and the applicability of the product is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, in particular to a backpack battery pack. Background Art

[0002] The backpack battery pack is a new type of power source that can provide power for a variety of garden tools such as chain saws, hair dryers, lawn mowers, pruning shears, etc.

[0003] Existing backpack battery packs usually have the output interface for electrical connection to garden tools arranged on the right side. For operators who are accustomed to working with their left hand, the power cord will be entangled in the body, or the power cord needs to be passed around the back of the backpack battery pack.

[0004] The power cord is entangled in the operator's body, making the operation very inconvenient. If the power cord is routed behind the backpack battery pack, it will be out of the operator's sight, creating a safety hazard. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and propose a backpack battery pack to solve the problem that the output interface of the prior art backpack battery pack is usually located on the right side and is not suitable for left-handed operation.

[0006] In order to achieve the above technical goals, the utility model proposes a backpack battery pack, including a shell and a battery pack, the shell having a cavity for accommodating the battery pack, and also including an output terminal electrically connected to the battery pack, a slide groove extending in the left and right directions is provided on the shell, the output terminal can be slidably arranged in the slide groove, and the output terminal is used to connect the power cord of an external power tool.

[0007] Preferably, the shell includes a first shell and a second shell, the accommodating cavity is formed between the first shell and the second shell, an upper slide groove portion and a lower slide groove portion are provided on the first shell, and the slide groove is formed between the upper slide groove portion and the lower slide groove portion.

[0008] Preferably, the shell further comprises a support frame mounted on the second shell, and the support frame is supported below the lower sliding groove portion.

[0009] Preferably, an upper guide rail is provided on the upper slide groove portion, a lower guide rail is provided on the lower slide groove portion, and the output terminal includes a guide portion, one end of the guide portion is placed in the upper guide rail for sliding, and the other end is placed in the lower guide rail for sliding.

[0010] Preferably, the lower slide groove portion includes an inner lining portion and an outer edge portion, a gap is maintained between the inner lining portion and the outer edge portion to form the lower guide rail, the inner lining portion is hollowed out, and the position of the second shell relative to the inner lining portion is hollowed out.

[0011] Preferably, a rotatable cover is provided on the housing, and the cover is rotated to cover or reveal the sliding groove.

[0012] Preferably, the cover plate is provided with limit parts on the left and right sides, the cover plate covers the slide slot, and the limit parts stop the output terminal so that the output terminal is placed on the left or right side of the slide slot.

[0013] Preferably, a buckle is provided on one of the cover plate and the shell, and a buckle groove is provided on the other, and the buckle is buckled in the buckle groove to buckle the cover plate onto the shell.

[0014] Preferably, the battery pack includes batteries and a circuit board, the circuit board is provided with a charging module for charging the batteries, and the output terminal is electrically connected to the charging module.

[0015] Preferably, the output terminal is electrically connected to the battery pack via a wire, a wire hole for the wire to pass through is provided in the housing, and a flexible sealing ring is provided in the wire hole.

[0016] After adopting the above technical solution, the utility model has the following beneficial effects.

[0017] The present invention provides a backpack battery pack comprising a housing and a battery pack. The housing defines a cavity for accommodating the battery pack and an output terminal electrically connected to the battery pack. The housing is provided with a slide extending in a left-right direction, and the output terminal is slidably disposed in the slide. The output terminal is used to connect to the power cord of an external power tool. This arrangement allows the output terminal to slide in the slide to be positioned on either the left or right side of the backpack battery pack. Whether a left-handed or right-handed operator is comfortable with the output terminal, the output terminal can be moved to the side that is more convenient for operation. This prevents the external power cord from becoming entangled with the operator, potentially affecting operation, or from being out of sight, creating a safety hazard. This significantly improves the product's usability. Furthermore, a single output terminal can accommodate operators with different handedness, eliminating the need for output terminals on both the left and right sides of the backpack battery pack. This saves material costs and avoids the need for additional output circuitry, which would increase design complexity and production costs exponentially.

[0018] 2. The housing includes a first housing and a second housing, with a cavity formed between the first and second housings. The first housing is provided with an upper slide groove portion and a lower slide groove portion, with a slide groove formed between the upper and lower slide groove portions. By dividing the housing into the first and second housings, the battery pack can be positioned on the second housing before the first housing is closed. This simplifies assembly of the backpack battery pack. Furthermore, the split housing arrangement facilitates separation and reassembly when internal components require repair or replacement. Furthermore, by providing the slide groove on the first housing, the output terminals can be pre-positioned on the first housing before the first housing is mounted on the second housing. When installing the first housing, only the output terminals need to be connected to the battery pack, simplifying the installation process and avoiding the need to simultaneously position the output terminals when installing the first housing, which increases the difficulty of installation.

[0019] 3. The housing further includes a support frame mounted on the second housing, the support frame being supported below the lower trough. By providing the support frame mounted on the second housing and the proppant being supported below the lower trough, the backpack battery pack avoids shear forces at the connection between the lower trough and the first housing during use, which could reduce the strength of the connection, thereby increasing the service life of the housing.

[0020] 4. The upper chute is equipped with an upper guide rail, and the lower chute is equipped with a lower guide rail. The output terminal includes a guide portion, one end of which slides in the upper guide rail and the other end slides in the lower guide rail. This arrangement allows the output terminal to slide more smoothly in the chute, improving the operator's experience.

[0021] 5. The lower chute includes an inner lining and an outer edge. A gap is maintained between the inner lining and the outer edge to form a lower guide rail. The inner lining is hollowed out, and the second housing is hollowed out at a position opposite the inner lining. External garbage, debris, or rainwater can easily enter the chute through the opening. By hollowing out the relative position of the lower chute and the second housing, garbage, debris, or rainwater that enters the chute can be discharged through the hollowed-out position, thereby preventing the accumulation of garbage, debris, or rainwater in the chute and ensuring the hygiene and cleanliness of the chute and output terminals.

[0022] 6. The housing is equipped with a rotatable cover that can be rotated to cover or reveal the chute. This prevents a lot of external debris from entering the chute, thereby protecting the chute and output terminals from sanitation.

[0023] 7. The cover is equipped with stoppers on both sides. When the output terminal is placed on the left or right side of the slide, the cover closes the slide and the stoppers stop the output terminal to confine it to the left or right side of the slide. This arrangement can better limit the output terminal position, making it less likely for the operator to shake when plugging and unplugging the power cord, making the plugging and unplugging operation more convenient for the operator.

[0024] 8. The cover is equipped with a buckle, and the housing is equipped with a buckle groove. The buckle snaps into the buckle groove to buckle the cover to the housing. This arrangement can better fix the cover to the housing. On the one hand, it can better prevent external garbage and debris from entering the chute; on the other hand, it can also better limit the output terminal to prevent it from sliding freely.

[0025] 9. The battery pack includes batteries and a circuit board. The circuit board is provided with a charging module for charging the batteries, and the output terminals are electrically connected to the charging module. This arrangement allows the output terminals to input current to charge the battery pack, eliminating the need for a separate charging port on the backpack battery pack. This avoids the need for additional openings and charging terminal assemblies on the backpack battery pack, saving material and production costs for the backpack battery pack.

[0026] 10. The output terminal is electrically connected to the battery pack via a wire. The housing is provided with a wire hole for the wire to pass through, and a flexible sealing ring is installed in the wire hole. This arrangement allows the wire to be installed in the wire hole through the flexible sealing ring. The flexible sealing ring flexibly positions the wire, which, on the one hand, prevents direct contact and friction between the wire and the wire hole when the operator slides the output terminal. On the other hand, the friction between the flexible sealing ring and the wire can also reduce or prevent excessive pulling during wire movement, which may cause the wire to loosen its connection with the battery pack.

[0027] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is an exploded view of a backpack battery pack in an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the output terminal sliding in the slide groove in the embodiment of the utility model;

[0030] Figure 3 A schematic diagram of a backpack-type battery pack with its cover opened in accordance with an embodiment of the present invention;

[0031] Figure 4 A schematic diagram of one side of a backpack-type battery pack according to an embodiment of the present invention;

[0032] Reference numerals:

[0033] 100, housing, 110, slide, 111, upper slide portion, 1111, upper guide rail, 112, lower slide portion, 1121, lining portion, 1122, outer edge portion, 1123, lower guide rail, 120, first housing, 121, first pivoting portion, 130, second housing, 131, wire hole, 1311, first half hole, 132, buckle groove, 140, support frame, 150, cover, 151, second pivoting portion, 152, limiting portion, 153, buckle;

[0034] 200, output terminal, 201, guide portion, 210, wire, 220, flexible sealing ring;

[0035] 300. Battery pack. DETAILED DESCRIPTION

[0036] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" or "several" means two or more, unless expressly limited otherwise.

[0039] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0040] Example 1:

[0041] like Figures 1 to 4 As shown in the figure, a backpack battery pack proposed in an embodiment of the present invention includes a housing 100, a battery pack 300, and an output terminal 200. The housing 100 defines a cavity for accommodating the battery pack 300, and the output terminal 200 is electrically connected to the battery pack 300. The housing 100 is provided with a slide groove 110 extending in the left-right direction, and the output terminal 200 is slidably disposed in the slide groove 110. The output terminal 200 is used to connect to the power cord of an external power tool.

[0042] With this arrangement, the output terminal 200 can slide in the slide groove 110 to be placed on the left or right side of the backpack battery pack. Operators, whether left-handed or right-handed, can move the output terminal 200 to the end that is convenient for operation, thereby avoiding the external power cord being entangled in the operator and affecting the operation, or the external power cord being out of the operator's sight and posing a safety hazard, thereby greatly improving the applicability of the product. At the same time, setting up one output terminal 200 can meet the needs of operators with different handedness, so there is no need to provide output terminals 200 on both sides of the backpack battery pack, which saves material costs and avoids the need to set up additional output circuits, which leads to an exponential increase in design difficulty and production costs.

[0043] In this embodiment, the housing 100 includes a first housing 120 and a second housing 130, with a cavity for accommodating the battery pack 300 formed between the first housing 120 and the second housing 130. The second housing 130 is provided with a wearable component (not shown) to enable the backpack battery pack to be carried on the back of an operator.

[0044] In a preferred embodiment, an upper sliding groove portion is provided on the first housing, and a lower sliding groove portion is provided on the second housing, and a sliding groove for sliding the output terminal is formed between the upper sliding groove portion and the lower sliding groove portion.

[0045] Preferably, in this embodiment, an upper sliding groove portion 111 and a lower sliding groove portion 112 are provided on the first housing 120 , and a sliding groove 110 for sliding the output terminal 200 is formed between the upper sliding groove portion 111 and the lower sliding groove portion 112 .

[0046] By dividing the shell 100 into a first shell 120 and a second shell 130, the battery pack 300 can be first positioned on the second shell 130 and then covered with the first shell 120. In this way, the assembly of the backpack battery pack is simpler; at the same time, when internal parts need to be repaired or replaced, the split setting of the shell 100 is more convenient for separation and reassembly; furthermore, the slide groove 110 is set on the first shell 120, and before the first shell 120 is installed on the second shell 130, the output terminal 200 can be pre-positioned on the first shell 120. When installing the first shell 120, it is only necessary to connect the output terminal 200 to the battery pack 300 for installation, which simplifies the installation process and avoids the need to position the output terminal 200 at the same time when installing the first shell 120, which increases the difficulty of installation.

[0047] In another preferred embodiment, the battery pack 300 includes batteries and a circuit board. The circuit board is provided with a charging module for charging the batteries. The output terminal 200 is electrically connected to the charging module.

[0048] With this arrangement, the output terminal 200 can serve as an input current to charge the battery pack. No additional charging port is required on the backpack battery pack, thus avoiding the need for additional openings and charging terminal assemblies on the backpack battery pack, thereby saving the material and production costs of the backpack battery pack.

[0049] In another preferred embodiment, the output terminal 200 is electrically connected to the battery pack 300 via a wire 210 . A wire hole 131 for the wire 210 to pass through is provided in the housing 100 , and a flexible sealing ring 220 is provided in the wire hole 131 .

[0050] In this arrangement, the wire 210 is installed in the wire hole 131 through the flexible sealing ring 220. The flexible sealing ring 220 flexibly positions the wire 210. On the one hand, it can avoid direct contact and friction between the wire 210 and the wire hole 131 when the operator slides the output terminal 200, thereby reducing or avoiding the occurrence of damage to the wire 210 during use; on the other hand, the friction between the flexible sealing ring 220 and the wire 210 can also better fix the wire 210, reduce or avoid excessive pulling of the wire 210 during movement, thereby reducing or avoiding loosening of the connection position between the wire 210 and the battery pack 300.

[0051] In this embodiment, the second housing 130 is provided with a first half hole 1311 of the wire hole 131, and the first housing 120 is provided with a second half hole (not shown) of the wire hole 131. The first housing 120 covers the second housing 130, and the first half hole 1311 and the second half hole form the wire hole 131. A flexible sealing ring 220 is sleeved over the wire 210 and is locked in the wire hole 131.

[0052] Example 2:

[0053] Based on Example 1, Figures 1 to 4 As shown, in this embodiment, the housing 100 further includes a support frame 140 mounted on the second housing 130 , and the support frame 140 is supported below the lower sliding groove portion 112 .

[0054] Specifically, the first housing 120 is integrally formed by injection molding, and the lower slide 112 is provided at the lower end of the first housing 120. To facilitate operation, the ends of the slide 110 extend to the left and right ends of the first housing 120. The width and thickness of the connection between the lower slide 112 and the main body of the first housing 120 are both relatively small. This results in insufficient structural strength at this connection. Over long-term use, this connection may deform, causing the opening of the slide 110 to become larger, and the output terminal 200 may not be properly retained in the slide 110.

[0055] By providing a support frame 140 installed on the second shell 130, and the support frame 140 is supported below the lower slide groove portion 112, the shear force at the connection position between the lower slide groove portion 112 and the first shell 120 is avoided during use of the backpack battery pack, which causes the strength of the connection position to be reduced, thereby improving the service life of the shell 100.

[0056] Example 3:

[0057] Based on the first and second embodiments, Figures 1 to 4 As shown, in this embodiment, an upper guide rail 1111 is provided on the upper slide groove portion 111, and a lower guide rail 1123 is provided on the lower slide groove portion 112. The output terminal 200 includes a guide portion 201, one end of the guide portion 201 is placed in the upper guide rail 1111 to slide, and the other end is placed in the lower guide rail 1123 to slide.

[0058] With such a configuration, the output terminal 200 can slide more smoothly in the sliding groove 110 , thereby improving the user experience of the operator.

[0059] Preferably, in this embodiment, the lower sliding groove portion 112 includes an inner lining portion 1121 and an outer edge portion 1122, a gap is maintained between the inner lining portion 1121 and the outer edge portion 1122 to form a lower guide rail 1123, the inner lining portion 1121 is hollowed out, and the position opposite to the second shell 130 and the inner lining portion 1121 is hollowed out.

[0060] External garbage, debris or rainwater can easily enter the chute 110 from the opening of the chute 110. Through the hollow setting of the relative position of the lower chute part 112 and the second shell 130, the garbage, debris or rainwater entering the chute 110 can be discharged from the hollow position, thereby avoiding the accumulation of garbage, debris or rainwater in the chute 110 and ensuring the hygiene and cleanliness of the chute 110 and the output terminal 200.

[0061] Example 4:

[0062] Based on Examples 1 to 3, Figures 1 to 4 As shown, in this embodiment, a rotatable cover plate 150 is provided on the housing 100 , and the cover plate 150 rotates to cover or reveal the slide slot 110 .

[0063] This arrangement prevents a large amount of external debris from entering the chute 110 , thereby protecting the hygiene of the chute 110 and the output terminal 200 .

[0064] In this embodiment, the cover plate 150 is preferably disposed on the first housing 120. The first housing 120 is provided with a first pivoting portion 121, and the cover plate 150 is provided with a second pivoting portion 151. The first pivoting portion 121 and the second pivoting portion 151 are pivotally connected via a shaft. In this embodiment, the shaft is a screw, one end of which passes through the first pivoting portion 121 and the second pivoting portion 151 and is threadedly connected to a nut.

[0065] It is understandable that the housing 100 and the cover 150 may be pivotally connected via one set of pivoting structures, or may be pivotally connected via multiple sets of pivoting structures.

[0066] In a preferred embodiment, a limiting portion 152 is provided on the left and right sides of the cover 150. When the output terminal 200 is placed on the left or right side of the slide groove 110, the cover 150 covers the slide groove 110, and the limiting portion 152 stops the output terminal 200 to limit the output terminal 200 to the left or right side of the slide groove 110.

[0067] Such a configuration can better limit the output terminal 200. When the operator plugs in or unplugs the power cord, the output terminal 200 is not likely to shake, which is more conducive to the operator's plugging and unplugging operations.

[0068] In another preferred embodiment, a buckle 153 is provided on the cover 150 , and a buckle groove 132 is provided on the housing 100 . The buckle 153 is buckled into the buckle groove 132 so that the cover 150 is buckled onto the housing 100 .

[0069] In some other embodiments, the buckle 153 is disposed on the housing 100 , and the buckling groove 132 is disposed on the cover 150 .

[0070] With such a configuration, the cover 150 can be better fixed to the housing 100. On the one hand, it can better prevent a large amount of external garbage and debris from entering the chute 110; on the other hand, it can also better limit the output terminal 200 to prevent the output terminal 200 from sliding randomly.

[0071] In this embodiment, the locking groove 132 is preferably provided on the second shell 130 .

[0072] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art will understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. A backpack battery pack, comprising a housing (100) and a battery pack (300), wherein a cavity for accommodating the battery pack (300) is formed in the housing (100), characterized in that: The invention also includes an output terminal (200) electrically connected to the battery pack (300), a slide groove (110) extending in the left-right direction is provided on the housing (100), and the output terminal (200) is slidably arranged in the slide groove (110), and the output terminal (200) is used to connect the power cord of an external power tool.

2. The backpack battery pack according to claim 1, wherein: The shell (100) includes a first shell (120) and a second shell (130), wherein the accommodating cavity is formed between the first shell (120) and the second shell (130), and an upper slide groove portion (111) and a lower slide groove portion (112) are provided on the first shell (120), wherein the slide groove (110) is formed between the upper slide groove portion (111) and the lower slide groove portion (112).

3. The backpack battery pack according to claim 2, wherein: The housing (100) further includes a support frame (140) mounted on the second housing (130), wherein the support frame (140) is supported below the lower sliding groove portion (112).

4. The backpack battery pack according to claim 2, wherein: An upper guide rail (1111) is provided on the upper slide groove portion (111), a lower guide rail (1123) is provided on the lower slide groove portion (112), and the output terminal (200) comprises a guide portion (201), one end of the guide portion (201) is placed in the upper guide rail (1111) for sliding, and the other end is placed in the lower guide rail (1123) for sliding.

5. The backpack battery pack according to claim 4, characterized in that: The lower sliding groove portion (112) includes an inner lining portion (1121) and an outer edge portion (1122), a gap is maintained between the inner lining portion (1121) and the outer edge portion (1122) to form the lower guide rail (1123), the inner lining portion (1121) is hollowed out, and the second shell (130) is hollowed out at a position opposite to the inner lining portion (1121).

6. The backpack battery pack according to claim 1, wherein: A rotatable cover plate (150) is provided on the housing (100), and the cover plate (150) rotates to cover or reveal the slide groove (110).

7. The backpack battery pack according to claim 6, wherein: The cover plate (150) is provided with limiting portions (152) on the left and right sides. The cover plate (150) covers the slide groove (110). The limiting portions (152) stop the output terminal (200) so that the output terminal (200) is placed on the left or right side of the slide groove (110).

8. A backpack battery pack according to claim 6 or 7, characterized in that: A buckle (153) is provided on one of the cover plate (150) and the shell (100), and a buckle groove (132) is provided on the other, and the buckle (153) is buckled into the buckle groove (132) so that the cover plate (150) is buckled onto the shell (100).

9. The backpack battery pack according to claim 1, wherein: The battery pack (300) comprises a battery and a circuit board. A charging module for charging the battery is provided on the circuit board, and the output terminal (200) is electrically connected to the charging module.

10. The backpack battery pack according to claim 1, wherein: The output terminal (200) is electrically connected to the battery pack (300) via a wire (210); a wire hole (131) for the wire (210) to pass through is provided in the housing (100); and a flexible sealing ring (220) is provided in the wire hole (131).

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