Backpack frame and backpack type air blower

Abstract

The invention relates to a backpack frame and a backpack type air blower. A frame main body comprises a supporting component close to the backpack side of a person; the support member includes a central support portion and an edge support portion when viewed from a dorsal side of the support member; the central axis of the central supporting part and the edge line of the edge supporting part respectively form a first virtual plane and a second virtual plane, and the first virtual plane and the second virtual plane respectively extend outwards in an inclined manner from the center, so that an open cavity which is concave inwards is formed in the back surface of the supporting component; viewed from one side opposite to the back surface of the support member, the support member comprises: an operation assembly mounting portion suitable for mounting and connecting an operation assembly, the operation assembly at least comprising a drive motor; and the central supporting part and the edge supporting part which are spaced from each other form a spaced multi-section support on the back surface of the operation assembly mounting part. The bearing frame is high in structural strength.

Description

Technical Field

[0001] The invention relates to the field of garden blowers, and in particular to a backpack frame and a backpack blower. Background Art

[0002] Compared with engine-type tools, electric tools are more environmentally friendly and thus widely used. In order to facilitate users to carry, backpack blowers are now mostly used. Users carry the equipment on their backs, and the weight of the equipment is borne by their bodies, which reduces the force on the hands and relieves user fatigue.

[0003] However, backpack blowers generally cause the battery pack to have a higher temperature during discharge due to their high power and current, and the overall structure of the backpack frame needs to be strengthened. Summary of the invention

[0004] One of the purposes of the present invention is to provide a backpack frame with high structural strength.

[0005] In view of this, the present application provides a backpack frame, including a frame body, wherein: The frame body includes a support member close to the side carried by the person; When viewed from the back side of the support member, the support member comprises: A central support portion and edge support portions spaced apart from each other on both sides of the central support portion; The central axis of the central support portion and the edge line of the edge support portion respectively form a first virtual plane and a second virtual plane, and the first virtual plane and the second virtual plane respectively extend obliquely outward from the center to form an open cavity that is concave inward on the back side of the support member; The support member, viewed from a side opposite to a back surface of the support member, comprises: An operating component mounting portion, which is suitable for mounting and connecting an operating component, wherein the operating component includes at least one driving motor; The central support portion and the edge support portion spaced apart from each other form spaced multi-stage supports on the back side of the working component mounting portion.

[0006] Furthermore, when observed from the back side of the support member, a partial spacing area between the central support portion and the edge support portions on both sides thereof is lower than the adjacent portions thereof, forming a relatively low-lying structure to form an alternating convex and concave shape on the back side of the operating component mounting portion.

[0007] Furthermore, the central support portion extends downward to be connected to the bottom of the frame body, and is connected to the edge support portion by the laterally extending bottom to form a "Ш" shape on the back side of the working component mounting portion.

[0008] Furthermore, the central support portion, the edge support portion and the bottom are integrally formed.

[0009] Furthermore, the central support portion and the edge support portions spaced apart from each other are correspondingly supported at the front, middle and rear positions of the working component mounting portion.

[0010] Furthermore, the side of the edge supporting portion facing the back surface is inclined from outside to inside.

[0011] Furthermore, a groove is provided on the side of at least one edge supporting portion facing the back negative side, so as to form an alternating convex and concave shape on the side of the edge supporting portion facing the back negative side.

[0012] Compared with the prior art, the beneficial technical effects of this application are: In the present application, a central support portion and an edge support portion are provided on the support member close to the side on which the person is carrying the load, and an open cavity that is recessed inwardly is formed on the back side of the support member, that is, it can be understood that the edge support portion protrudes outwardly and the central support portion is recessed, and the central support portion is at least partially located on the inner side of the plane formed by the outer edge of the edge support portion, forming a similar embracing design that caters to the curve of the human back. On the one hand, the person is more comfortable when carrying the load on his back. At the same time, on the other hand, the central support portion and the edge support portion spaced apart from each other form a spaced multi-segment support on the back side of the working component installation portion, which strengthens the structure of the support member.

[0013] A second object of the present invention is to provide a backpack frame that can dissipate heat for a battery pack.

[0014] In view of this, the present application provides a backpack frame, comprising a frame body, wherein: The frame body includes a support member close to the side carried by the person; When viewed from the back side of the support member, the support member comprises: heat dissipation vents; and, A central support portion and edge support portions located on both sides of the central support portion; The central axis of the central support portion and the edge line of the edge support portion respectively form a first virtual plane and a second virtual plane, and the first virtual plane and the second virtual plane respectively extend obliquely outward from the center to form an open cavity that is concave inward on the back side of the support member; The open cavity is in communication with the heat dissipation port; The support member, viewed from a side opposite to a back surface of the support member, comprises: A battery installation portion, which is suitable for installing and connecting a battery pack; The heat dissipation port is adapted to be opposite to and connected with the heat dissipation surface of the battery pack provided with a vent.

[0015] Furthermore, when observed from the back side of the support member, a plurality of wedge-shaped portions are respectively provided between the central support portion and the edge support portions on both sides thereof, and the heat dissipation opening is provided on the bottom surface of the wedge-shaped portion so as to be covered and shielded by the upper inclined surface of the wedge-shaped portion.

[0016] Furthermore, one end of the wedge-shaped portion in the transverse direction extends to be connected to the edge support portion, and the other end extends to be close to the central support portion and is open to communicate with the central area of ​​the open cavity.

[0017] Furthermore, a guide channel is formed between the upper inclined surface of the wedge-shaped portion and the bottom surface of another adjacent wedge-shaped portion, and the guide channel is communicated with the heat dissipation port.

[0018] Furthermore, the back face of the support member is suitable for connecting to a shoulder strap assembly, the shoulder strap assembly includes a connecting portion and a shoulder strap, the connecting portion is connected to the back face of the support member, and is combined with the open cavity to form an airflow chamber.

[0019] Furthermore, the connecting portion is made of porous and breathable fabric.

[0020] Compared with the prior art, the beneficial technical effects of this application are: In the present application, a similar embracing design is also formed on the side close to the person's back, which caters to the curve of the human back. On the one hand, the person is more comfortable when carrying the device on his back. At the same time, on the other hand, a heat dissipation port is provided, which is opposite to and connected with the heat dissipation surface of the battery pack with a vent, which helps to dissipate heat from the battery pack. Especially when used in a backpack blower, the backpack blower generates high-speed airflow during operation. By providing an air cooling channel connected to the main operating air duct, negative pressure can be formed in the air cooling channel, and the heat dissipation port connected thereto forms an air inlet, which can introduce external airflow into the battery pack through the heat dissipation port and introduce it into the main operating air duct through the air cooling channel, thereby further enhancing the heat dissipation effect of the battery pack.

[0021] Another backpack frame provided by the present application includes a frame body, wherein: The frame body includes a support member close to the side carried by the person; When viewed from the back side of the support member, the support member comprises: A central support portion and edge support portions spaced apart from each other on both sides of the central support portion; The central axis of the central support portion and the edge line of the edge support portion respectively form a first virtual plane and a second virtual plane, and the first virtual plane and the second virtual plane respectively extend obliquely outward from the center to form an open cavity that is concave inward on the back side of the support member; The support member, viewed from a side opposite to a back surface of the support member, comprises: An operating component mounting portion, which is suitable for mounting and connecting an operating component, wherein the operating component includes at least one driving motor; A battery mounting portion, which is suitable for detachably mounting and connecting a battery pack, wherein the battery pack is suitable for providing power to the driving motor; The battery mounting portion is located above the operating component mounting portion.

[0022] Furthermore, the central support portion and the edge support portion spaced apart from each other form spaced multi-stage supports on the back side of the working component mounting portion.

[0023] Furthermore, the support member also includes a heat dissipation port; The heat dissipation port is adapted to be opposite to and connected with the heat dissipation surface of the battery pack provided with a vent, and is also connected with the open cavity.

[0024] Compared with the prior art, the beneficial technical effects of this application are: In the present application, a similar embracing design is also formed on the side close to the person's back, which caters to the curve of the human back. On the one hand, the person is more comfortable when carrying the device on his back. On the other hand, the battery installation part is located above the working component installation part to facilitate the person to disassemble and install the battery pack.

[0025] In addition, the present application also provides a backpack blower, which includes: The carrying frame as described above; and A blower assembly including a drive motor and a fan; a battery pack adapted to provide power to the drive motor; The air blowing assembly is installed and configured on the working assembly installation portion, and the battery pack is installed and configured on the battery installation portion.

[0026] Furthermore, a central axis of the battery pack in a vertical direction is closer to the back surface than a central axis of the air blowing assembly in a vertical direction.

[0027] Compared with the prior art, the backpack blower provided in the present application has all the beneficial technical effects of the above-mentioned backpack frame, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 : A schematic diagram of the structure of a backpack blower according to a specific embodiment of the present invention; Figure 2 : Exploded view of the structure of a backpack blower according to a specific embodiment of the present invention; Figure 3 : An exploded view of the carrying frame structure of a specific embodiment of the present invention; Figure 4 : A schematic diagram of the structure of the support member of a specific embodiment of the present invention when viewed from the back; Figure 5 : Schematic diagram of a first virtual plane S1 and a second virtual plane S2 according to a specific embodiment of the present invention; Figure 6 : A schematic diagram of the viewing angle structure of the supporting member of a specific embodiment of the present invention on the other side relative to the back surface; Figure 7 : Schematic diagram of the structure of the wedge-shaped portion of the supporting member according to a specific embodiment of the present invention. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the present application, the carrying frame is used as a reference, and "outside" refers to the direction away from the side carried by the person and the frame body, and "inside" refers to the direction facing the area surrounded by the frame body.

[0032] Reference Figure 1 , Figure 2 and Figure 3 As shown, the present application provides a backpack frame 100, including a frame body 10, wherein: The frame body 10 includes a support member 10 a close to the side on which the person carries the load, a cover member 10 b connected to the support member 10 a , and a cover body 10 c movably hinged (eg, pivotally connected) to the cover member 10 b .

[0033] The covering member 10b corresponds to the working component mounting portion 4 of the supporting member 10a, and the cover body 10c corresponds to the battery mounting portion 5 of the supporting member 10a. During the assembly operation, the assembled working component is first positioned and connected to the working component mounting portion 4, and then the covering member 10b is correspondingly connected and fixed to the supporting member 10a to cover and connect the fixed working component. The cover body 10c can be rotated along the movable hinge connection with the covering member 10b to close or open the battery mounting portion 5.

[0034] Reference Figure 4 and Figure 5 As shown, when viewed from the back side S of the support member 10a, the support member 10a includes: A central support portion 1 and edge support portions 2 located on both sides of the central support portion 1 and spaced apart from each other; The central axis L1 of the central support portion 1 and the edge lines (L2, L3) of the edge support portion 2 respectively form a first virtual plane S1 and a second virtual plane S2, and the first virtual plane S1 and the second virtual plane S2 respectively extend obliquely outward from the center to form an inwardly concave open cavity on the back side S of the support member 10a; Reference Figure 6 As shown, when viewed from the side opposite to the back side S of the support member 10a, the support member 10a includes: The operating component installation portion 4 is suitable for installing and connecting the operating component, and the operating component at least includes a driving motor; The central support portion 1 and the edge support portion 2 spaced apart from each other form a spaced multi-stage support on the back side of the working component mounting portion 4 .

[0035] In the present application, a central support portion 1 and an edge support portion 2 are provided on the support member 10a close to the side on which the person is carrying the load, and an open cavity that is recessed inward is formed on the back surface S of the support member 10a, that is, it can be understood that the edge support portion 2 protrudes outward, and the central support portion 1 is recessed, and the central support portion 1 is at least partially located on the inner side of the plane formed by the outer edge of the edge support portion 2, forming a similar embracing design that caters to the curve of the human back. On the one hand, when the person is carrying the load, the load is more comfortable. At the same time, on the other hand, the mutually spaced central support portion 1 and the edge support portion 2 form a spaced multi-segment support on the back of the working component mounting portion 4, which strengthens the structure of the support member 10a.

[0036] Specifically, the multi-segment support structure formed by the interval arrangement of the central support portion 1 and the edge support portion 2 can disperse the force more evenly, improve the stability and bearing capacity of the overall structure, so that the support member 10a can withstand a larger operating load without being easily deformed or damaged.

[0037] Further, continue to refer to Figure 4 and Figure 7 As shown, when viewed from the back side S of the support member 10a, a partial spacing area between the central support portion 1 and the edge support portions 2 on both sides thereof is lower than the adjacent portions, forming a relatively low-lying structure to form an alternating convex and concave shape on the back side of the working component mounting portion 4.

[0038] Specifically, at the back side of the working component mounting portion 4, the spacing area between the central support portion 1 and the edge support portions 2 on both sides thereof is recessed inward to form a depression 8, and when viewed from the edge support portion 2 on one side toward the opposite edge support portion 2 on the other side, a convex-concave-convex-concave-convex structure is formed on the back side of the working component mounting portion 4, and the corresponding structural parts are edge support portion 2-depression 8-central support portion 1-depression 8-edge support portion 2.

[0039] Thus, the alternating concave-convex shape can increase the bending, compression and twisting resistance of the support member 10a. Moreover, while ensuring the structural strength, the use of materials can be reduced, thereby reducing the weight of the entire support member 10a.

[0040] Continue to refer to Figure 4 As shown, the central support portion 1 extends downward to connect with the bottom 3 of the frame body 10, and is connected to the edge support portion 2 by the laterally extending bottom 3 to form a "Ш" shape on the back of the working component mounting portion 4.

[0041] The connection between the central support 1, the bottom 3 and the edge support 2 forms a stable structural framework. Similar to the support structure of a bridge, it can effectively withstand the pressure from the working components and various external forces, ensuring the stability and reliability of the entire system. In addition, the "Ш" shape helps to evenly disperse stress and avoid stress concentration.

[0042] In addition, the central support part 1, the edge support part 2 and the bottom part 3 are integrally formed. In this way, there are no joints or connection gaps between the parts, thereby avoiding stress concentration and weak points that may occur at these joints, so that the entire structure can withstand greater loads and external forces and is not prone to breakage or deformation.

[0043] In addition, it is necessary to specially point out that: The central support portion 1 and the edge support portion 2 spaced apart from each other are supported at the front, middle and rear positions of the working component mounting portion 4 respectively.

[0044] By providing support at multiple locations, the force on the working component mounting portion 4 can be more evenly dispersed to each supporting position, reducing local concentrated stress, thereby improving the stability and reliability of the overall structure. In addition, when the working component is working, vibration is inevitable, and multiple support points can absorb and disperse energy together, reducing the vibration amplitude transmitted to the working component and protecting the working component from damage.

[0045] In addition, in order to make the back-facing zone S more consistent with the back curve of the human body, the side of the edge support portion 2 facing the back-facing zone S is inclined from outside to inside.

[0046] Furthermore, at least one edge support portion 2 is provided with a groove on the side facing the back side S, so as to form a convex-concave alternating shape on the side facing the back side S of the edge support portion 2, such as Figure 4 2a, 2b. Similarly, the alternating concave and convex shape can increase the bending, compression and twisting resistance of the edge support portion 2. Moreover, while ensuring the structural strength, the use of materials can be reduced, thereby further reducing the weight of the entire support member 10a.

[0047] Reference Figure 3 , Figure 6 and Figure 7 As shown, when viewed from the back side S of the support member 10a, the support member 10a further includes: The heat dissipation port 6 is connected to the open cavity; Further references Figure 6 As shown, when viewed from the side opposite to the back side S of the support member 10a, the support member 10a includes: A battery mounting portion 5, which is suitable for mounting and connecting a battery pack 200; The heat dissipation opening 6 is adapted to be opposite to and connected with the heat dissipation surface of the battery pack 200 provided with the ventilation opening.

[0048] The heat dissipation port 6 is connected to the open cavity, and can provide a good heat dissipation channel for the battery pack 200. Hot air can be quickly discharged through the heat dissipation port, and cold air can enter, forming effective convection, thereby reducing the operating temperature of the battery pack 200.

[0049] Especially when used in a backpack blower, the backpack blower generates high-speed airflow during operation. By setting an air cooling channel connected to the main operating air duct, negative pressure can be formed in the air cooling channel, and the heat dissipation port 6 connected thereto forms an air inlet, which can introduce the external airflow into the battery pack through the heat dissipation port 6 and introduce it into the main operating air duct through the air cooling channel, further enhancing the heat dissipation effect of the battery pack. It can be understood that at this time, the heat dissipation port 6, the air duct of the battery pack itself, the air cooling channel, and the main operating air duct are interconnected.

[0050] Further, refer to Figure 7 As shown, when viewed from the back side S of the support member 10a, a plurality of wedge-shaped portions 7 are provided between the central support portion 1 and the edge support portions 2 on both sides thereof, and the heat dissipation opening 6 is provided on the bottom surface 7b of the wedge-shaped portion 7 so as to be covered and shielded by the upper inclined surface 7a of the wedge-shaped portion 7.

[0051] The upper inclined surface 7a of the wedge-shaped portion 7 can shield and protect the heat dissipation opening 6, thereby reducing the possibility of external objects directly entering the heat dissipation opening, for example, preventing dust, debris, etc. from entering.

[0052] Continue to refer to Figure 7 As shown, one end of the wedge-shaped portion 7 in the transverse direction extends to connect with the edge support portion 2, and the other end extends to the vicinity of the central support portion 1 and is open to communicate with the central area of ​​the open cavity. In this way, the heat dissipation port 6 can be better connected with the open cavity, promoting air circulation and improving heat dissipation efficiency.

[0053] Continue to refer to Figure 7 As shown, a guide channel is formed between the upper inclined surface 7a of the wedge-shaped portion 7 and the bottom surface 7b of another adjacent wedge-shaped portion 7, and the guide channel is connected to the heat dissipation port 6. The formation of the guide channel can more effectively guide the airflow into the heat dissipation port 6. When the airflow flows between the upper inclined surface 7a of the wedge-shaped portion 7 and the bottom surface 7b of the adjacent wedge-shaped portion 7, it will flow along the direction of the guide channel, thereby increasing the airflow amount and airflow speed entering the heat dissipation port 6, and improving the heat dissipation efficiency.

[0054] Furthermore, the back surface S of the supporting member 10a is suitable for connecting to the shoulder strap 20b assembly 20, and the shoulder strap 20b assembly 20 includes a connecting portion 20a and a shoulder strap 20b, wherein the connecting portion 20a is connected to the back surface S of the supporting member 10a and is combined with the open cavity to form an airflow chamber.

[0055] Specifically, the connecting portion 20a is made of porous air-permeable fabric.

[0056] Reference Figure 3 As shown, as described above, the support member 10a includes: The operating component installation portion 4 is suitable for installing and connecting the operating component, and the operating component at least includes a driving motor; A battery mounting portion 5, which is suitable for detachably mounting and connecting a battery pack, and the battery pack is suitable for providing power to the driving motor; The battery mounting portion 5 is located above the working unit mounting portion 4 .

[0057] The battery mounting portion 5 is located above the operating component mounting portion 4 to avoid the center of gravity being too low. Those skilled in the art should know that a too low center of gravity will cause the frame to be unbalanced left to right or front to back when carried, making it difficult for the wearer to maintain a stable posture, which may affect the flexibility and safety of the movement. In this way, the center of gravity of the entire frame is closer to the upper back of the human body, making it more stable when carried, reducing the imbalance caused by the too low center of gravity. In addition, it is convenient to install and disassemble the battery pack 200.

[0058] In addition, the present application also provides a backpack blower, which includes: The backpack frame 100 as described above; and A blower assembly 300, which includes a drive motor and a fan; A battery pack 200, adapted to provide power to the drive motor; The air blowing unit 300 is mounted on the working unit mounting portion 4 , and the battery pack 200 is mounted on the battery mounting portion 5 .

[0059] Furthermore, the central axis L1 of the battery pack 200 in the vertical direction is closer to the back surface S than the central axis L1 of the air blowing assembly in the vertical direction.

[0060] In this way, by placing the central axis of the battery pack closer to the back, the center of gravity of the entire carrying frame can be closer to the back of the human body, thereby improving the stability and sense of balance when carrying, and reducing fatigue and discomfort caused by the center of gravity shift. In addition, the center of gravity of the battery pack closer to the back helps to distribute the weight more evenly on the back of the human body, reduce local pressure, and improve the comfort of carrying.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A backpack frame, comprising a frame body, characterized in that: The frame body includes a support member close to the side carried by the person; When viewed from the back side of the support member, the support member comprises: A central support portion and edge support portions located on both sides of the central support portion and spaced apart from the central support portion; The central axis of the central support portion and the edge line of the edge support portion respectively form a first virtual plane and a second virtual plane, and the first virtual plane and the second virtual plane respectively extend obliquely outward from the center to form an open cavity that is concave inward on the back side of the support member; The support member, viewed from a side opposite to a back surface of the support member, comprises: An operating component mounting portion, which is suitable for mounting and connecting an operating component, wherein the operating component includes at least one driving motor; The central support portion and the edge support portion spaced apart from each other form spaced multi-stage supports on the back side of the working component mounting portion.

2. The backpack frame according to claim 1, characterized in that: When viewed from the back side of the support member, a partial spacing area between the central support portion and the edge support portions on both sides thereof is lower than its adjacent portions, forming a relatively low-lying structure to form an alternating convex and concave shape on the back side of the operating component mounting portion.

3. The backpack frame according to claim 1 or 2, characterized in that: The central support portion extends downward to be connected to the bottom of the frame body, and is connected to the edge support portion by the laterally extending bottom to form a "Ш" shape on the back side of the working component mounting portion.

4. The carrying frame according to claim 3, characterized in that: The central support portion, the edge support portion and the bottom are integrally formed.

5. The backpack frame according to claim 1 or 2, characterized in that: The central support portion and the edge support portions spaced apart from each other are correspondingly supported at the front, middle and rear positions of the working component mounting portion.

6. The carrying frame according to claim 1, characterized in that: The side of the edge supporting portion facing the back surface is inclined from outside to inside.

7. The backpack frame according to claim 1 or 6, characterized in that: A groove is provided on the side of at least one edge support portion facing the back negative side, so as to form an alternating convex and concave shape on the side of the edge support portion facing the back negative side.

8. A backpack frame, comprising a frame body, characterized in that: The frame body includes a support member close to the side carried by the person; When viewed from the back side of the support member, the support member comprises: heat dissipation vents; and, A central support portion and edge support portions located on both sides of the central support portion; The central axis of the central support portion and the edge line of the edge support portion respectively form a first virtual plane and a second virtual plane, and the first virtual plane and the second virtual plane respectively extend obliquely outward from the center to form an open cavity that is concave inward on the back side of the support member; The open cavity is in communication with the heat dissipation port; The support member, viewed from a side opposite to a back surface of the support member, comprises: A battery mounting portion, which is suitable for mounting and connecting a battery pack; The heat dissipation port is adapted to be opposite to and connected with the heat dissipation surface of the battery pack provided with a vent.

9. The carrying frame according to claim 8, characterized in that: When viewed from the back side of the support member, a plurality of wedge-shaped portions are respectively provided between the central support portion and the edge support portions on both sides thereof, and the heat dissipation opening is provided on the bottom surface of the wedge-shaped portion so as to be covered and shielded by the upper inclined surface of the wedge-shaped portion.

10. The carrying frame according to claim 9, characterized in that: One end of the wedge-shaped portion in the transverse direction extends to connect with the edge support portion, and the other end extends to be close to the central support portion and is open to communicate with the central area of ​​the open cavity.

11. The backpack frame according to claim 10, characterized in that: A guide channel is formed between the upper inclined surface of the wedge-shaped portion and the bottom surface of another adjacent wedge-shaped portion, and the guide channel is communicated with the heat dissipation port.

12. The backpack frame according to any one of claims 8 to 11, characterized in that: The back face of the support member is suitable for connecting to a shoulder strap assembly, wherein the shoulder strap assembly comprises a connecting portion and a shoulder strap, wherein the connecting portion is connected to the back face of the support member and is combined with the open cavity to form an airflow chamber.

13. The carrying frame according to claim 12, characterized in that: The connecting part is made of porous and breathable fabric.

14. A backpack frame, comprising a frame body, characterized in that: The frame body includes a support member close to the side carried by the person; When viewed from the back side of the support member, the support member comprises: A central support portion and edge support portions spaced apart from each other on both sides of the central support portion; The central axis of the central support portion and the edge line of the edge support portion respectively form a first virtual plane and a second virtual plane, and the first virtual plane and the second virtual plane respectively extend obliquely outward from the center to form an open cavity that is concave inward on the back side of the support member; The support member, viewed from a side opposite to a back surface of the support member, comprises: An operating component mounting portion, which is suitable for mounting and connecting an operating component, wherein the operating component includes at least one driving motor; A battery mounting portion, which is suitable for detachably mounting and connecting a battery pack, wherein the battery pack is suitable for providing power to the driving motor; The battery mounting portion is located above the operating component mounting portion.

15. The carrying frame according to claim 14, characterized in that: The central support portion and the edge support portion spaced apart from each other form spaced multi-stage supports on the back side of the working component mounting portion.

16. The backpack frame according to claim 14 or 15, characterized in that: The support member also includes a heat dissipation port; The heat dissipation port is adapted to be opposite to and connected with the heat dissipation surface of the battery pack provided with a vent, and is also connected with the open cavity.

17. A backpack blower, characterized in that: include: The backpack frame according to any one of claims 1 to 16; as well as, A blower assembly including a drive motor and a fan; a battery pack adapted to provide power to the drive motor; The air blowing assembly is installed and configured on the working assembly installation portion, and the battery pack is installed and configured on the battery installation portion.

18. The backpack blower according to claim 17, characterized in that: The central axis of the battery pack in the vertical direction is closer to the back surface than the central axis of the air blowing assembly in the vertical direction.

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