Handheld stirring machine

Abstract

The utility model discloses a handheld stirrer which comprises a main machine and a tool bit assembly, a driver and a first PCB (printed circuit board) for controlling the driver to work are arranged in the main machine, the tool bit assembly is detachably arranged at the head of the main machine so as to be capable of stirring under the driving of the driver, and the tail of the main machine is magnetically connected with a battery pack assembly. The battery pack assembly comprises a battery shell and a rechargeable battery, two first magnets and a power receiving assembly are arranged at the tail of the host, the power receiving assembly is electrically connected with the first PCB, a power interface, a second magnet and a power supply interface are arranged on the face, facing the tail of the host, of the battery shell, and the power interface is used for charging the rechargeable battery. The second magnet is magnetically matched with the first magnet, and the power supply interface is used for being connected with a power receiving assembly to provide electric energy for the driver. The structure realizes the quick disassembly function of the battery pack, and the battery pack is arranged on the outer side and is separated from the host during charging, so that the influence on the service life of internal components due to overheating of the battery pack is avoided.

Description

Technical Field

[0001] The utility model belongs to the related technical field of small household appliances, and particularly relates to a hand-held blender. Background Art

[0002] A hand-held blender is a commonly used electric tool for processing food among various small household appliances and kitchen appliances. As a food processor relative to motor drive, it plays an extremely important role.

[0003] At present, most of the existing hand-held blenders are charged with a power cord, and some also come with an adapter at the same time, resulting in a complex structure and inconvenient storage. In addition, there are also hand-held blenders with non-rechargeable batteries. When the battery runs out of power, the battery needs to be replaced, making such hand-held blenders more inconvenient to use.

[0004] Therefore, there is a wireless charging hand-held blender disclosed in Patent No. 202022892676.X. The battery in this structure is placed inside the main body, resulting in inconvenient disassembly of the battery later. At the same time, the battery is set inside the main body, and the battery is prone to heat during the charging process, which is likely to damage the internal electronic components and ultimately reduce the service life of the product. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a hand-held blender, which solves the problems that the existing wireless charging hand-held blender has inconvenient battery disassembly, and at the same time, the battery is set inside the main body, the battery is prone to heat during the charging process, which is likely to damage the internal electronic components and ultimately reduce the service life of the product.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model provides a hand-held blender, which includes a main body and a cutter head assembly. A driver and a first PCB board for controlling the operation of the driver are arranged inside the main body. The cutter head assembly is detachably arranged at the head of the main body so that the cutter head assembly can be driven by the driver to perform stirring. The tail of the main body is magnetically connected with a battery pack assembly. The battery pack assembly includes a battery housing and a rechargeable battery arranged inside the battery housing. Two magnets I and a power receiving component are arranged at the tail of the main body. The power receiving component is electrically connected with the first PCB board. A power interface, a magnet II and a power supply interface are arranged on the surface of the battery housing facing the tail of the main body. The power interface is used to charge the rechargeable battery. The magnet II is magnetically matched with the magnet I. The power supply interface is used to connect with the power receiving component to supply electric energy to the driver.

[0008] Preferably, in order to achieve the two-way communication function and be able to obtain the status of the battery in real time, a second PCB board is further provided in the battery housing. The second PCB board is electrically connected to the rechargeable battery, the power interface, and the power supply interface. At the tail of the host, there is also an inlaid two-way communication insert piece electrically connected to the first PCB board. On the side of the battery housing facing the tail of the host, there is also an inlaid two-way communication interface electrically connected to the second PCB board. The two-way communication interface is connected to the two-way communication insert piece so that the second PCB board and the first PCB board can communicate bidirectionally to obtain battery status information.

[0009] Preferably, the power receiving component includes three positive charging pins and three negative charging pins. The power supply interface includes three positive plug sockets respectively inserted with the three positive charging pins and three negative plug sockets respectively inserted with the three negative charging pins. There are four two-way communication insert pieces in total, and there are also four corresponding two-way communication interfaces.

[0010] Preferably, the host includes a concave base and a holding part. The concave base is located at one end of the holding part, and the cutter head assembly is located at the other end of the holding part. The first PCB board is installed in the concave base, the first magnet, the two-way communication insert piece, and the power receiving component are installed at the bottom of the concave base. On the side of the holding part, there are a start button and a gear shift button electrically connected to the first PCB board. The battery pack assembly is hiddenly installed in the concave base, and the bottom of the concave base is flush with the bottom of the battery pack assembly.

[0011] Preferably, for the convenience of disassembly, the holding part includes a left cover body and a right cover body that are buckled with each other. The interior of the left cover body and the right cover body forms a receiving chamber for installing the driver, and the output shaft of the driver is connected with a rotating sleeve.

[0012] Preferably, in order to be able to obtain the charging situation in time during charging, a battery power display button electrically connected to the second PCB board is further provided on the side of the battery housing facing the tail of the host, and a battery charge display lamp electrically connected to the second PCB board is provided on the side of the battery housing away from the tail of the host.

[0013] Preferably, for the convenience of disassembly and to improve the fixing effect on the tool bit, the tool bit assembly includes a connecting sleeve, a wrapping piece, an outer cover, a transmission shaft located in the inner cavity of the outer cover, and a blade connected to the lower end of the transmission shaft. The upper end of the outer cover and the wrapping piece are both connected to the connecting sleeve. The outer cover is connected to the holding part through the connecting sleeve. On the outer side of one end of the holding part, two position-limiting grooves and two symmetrical elastic buckles are symmetrically arranged. Inside the connecting sleeve, a position-limiting block that cooperates with the elastic buckle is provided. On the position-limiting card, a limiting groove into which the elastic buckle can be snapped after the connecting sleeve rotates in place and a position-limiting piece that cooperates with the position-limiting groove are provided. When the elastic buckle snaps into the limiting groove, the position-limiting piece snaps into the position-limiting groove and locks. The wrapping piece is sleeved outside the connecting sleeve. The upper end of the transmission shaft passes through the connecting sleeve and is inserted into the driver. A water baffle is arranged at a position of the transmission shaft close to the blade.

[0014] Preferably, to further improve the fixing effect on the transmission shaft, more than one sector-shaped positioning rib is annularly arranged in the rotating sleeve. An arc-shaped groove is arranged on the outer side of each sector-shaped positioning rib. All the arc-shaped grooves cooperate to form a clamping hole. The upper end of the transmission shaft is inserted into the clamping hole. Two positioning pieces are also arranged at the upper end of the transmission shaft and are inserted into the gaps between adjacent sector-shaped positioning ribs.

[0015] The utility model has the following beneficial effects: By arranging a magnetic battery pack assembly at the tail of the main body, and separating the rechargeable battery in the battery pack assembly from the main body without installing it into the main body, when the rechargeable battery in the battery pack assembly needs to be charged, the whole battery pack assembly can be removed, which realizes the convenience of detaching the battery from the main body and solves the problem that "in the prior art, since the battery is placed inside the main body, the battery is prone to heat during the charging process, damaging the internal electronic components and ultimately reducing the service life of the product". BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the overall structure of the hand-held blender in Embodiment 1 Figure 1 ;

[0017] Figure 2 Schematic diagram of the overall structure of the hand-held blender in Embodiment 1 Figure 2 ;

[0018] Figure 3 Schematic diagram of the structure of the hand-held blender in Embodiment 1 without installing the battery pack assembly;

[0019] Figure 4 Schematic diagram of the structure of the main body in Embodiment 1;

[0020] Figure 5 Exploded view of the main body in Embodiment 1;

[0021] Figure 6Schematic diagram of the bottom structure of the battery pack assembly in Embodiment 1;

[0022] Figure 7 Schematic diagram of the top structure of the battery pack assembly in Embodiment 1;

[0023] Figure 8 Schematic diagram of the internal structure of the battery pack assembly without the battery lower cover in Embodiment 1;

[0024] Figure 9 Schematic diagram of the internal structure of the rotating sleeve in Embodiment 1;

[0025] Figure 10 Schematic diagram of the internal structure of the connecting sleeve in Embodiment 1;

[0026] Figure 11 Schematic diagram of the structure of the transmission shaft in Embodiment 1;

[0027] Figure 12 For Figure 3 Schematic diagram of the structure of the concave base part in

[0028] Reference numerals:

[0029] Main body 1, Magnet 1 101, Power receiving component 102, Concave base 103, Bottom cover 1031, Bottom plate 1032, Holding part 104, Start button 105, Gear shift button 106, Left housing 1041, Right housing 1042, Cutter head assembly 2, Connecting sleeve 201, Wrapping piece 202, Outer cover 203, Transmission shaft 204, Silicone positioning sleeve 2041, Blade 205, Driver 3, First PCB board 4, Battery pack assembly 5, Battery housing 501, Rechargeable battery 502, Power interface 6, Magnet 2 7, Power supply interface 8, Second PCB board 9, Bidirectional communication insert 10, Bidirectional communication interface 11, Positive charging pin 12, Negative charging pin 13, Positive socket 14, Negative socket 15, Rotating sleeve 16, Battery power display button 17, Battery charge display lamp 18, Positioning groove 19, Elastic buckle 20, Positioning block 21, Positioning piece 22, Limiting groove 23, Sector-shaped positioning rib 24, Arc-shaped groove 25, Clamping hole 26, Positioning piece 28, Gap 27, Water baffle 29. Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0031] Please refer to Figures 1-12 As shown in the figure, a hand-held blender disclosed in this embodiment includes a main body 1 and a cutter head assembly 2. A driver 3 and a first PCB board 4 for controlling the operation of the driver 3 are arranged in the main body 1. The cutter head assembly 2 is detachably arranged at the head of the main body 1 so that the cutter head assembly 2 can be driven by the driver 3 to perform stirring. A battery pack assembly 5 is magnetically connected to the tail of the main body 1. The battery pack assembly 5 includes a battery housing 501 and a rechargeable battery 502 arranged in the battery housing 501. Two magnets 101 and a power receiving component 102 are arranged at the tail of the main body 1. The power receiving component 102 is electrically connected to the first PCB board 4. A power interface 6, a magnet 7 and a power supply interface 8 are arranged on the side of the battery housing 501 facing the tail of the main body 1. The power interface 6 is used to charge the rechargeable battery 502. The magnet 7 is magnetically matched with the magnet 101. The power supply interface 8 is used to connect with the power receiving component 102 to supply electrical energy to the driver 3.

[0032] Preferably, in order to realize the two-way communication function and be able to obtain the battery status in real time, a second PCB board 9 is also arranged in the battery housing 501. The second PCB board 9 is electrically connected to the rechargeable battery 502, the power interface 6 and the power supply interface 8. A two-way communication insert 10 electrically connected to the first PCB board 4 is embedded and connected to the tail of the main body 1. A two-way communication interface 11 electrically connected to the second PCB board 9 is embedded and connected to the side of the battery housing 501 facing the tail of the main body 1. The two-way communication interface 11 is connected to the two-way communication insert 10 so that the second PCB board 9 and the first PCB board 4 can communicate bidirectionally to obtain battery status information. The power receiving component 102 includes three positive charging pins 12 and three negative charging pins 13. The power supply interface 8 includes three positive plug sockets 14 respectively inserted with the three positive charging pins 12 and three negative plug sockets 15 respectively inserted with the three negative charging pins 13. There are four two-way communication inserts 10 in total, and there are also four corresponding two-way communication interfaces 11. In this embodiment, by realizing the two-way communication connection between the main body 1 and the battery pack assembly 5, it can be achieved that when the whole machine is working, the main body 1 can detect the status of the battery pack assembly 5 in real time. When the power of the rechargeable battery 502 inside the battery pack assembly 5 is too low, the low power signal of the rechargeable battery 502 can be communicated and sent to the first PCB board 4, so that the main body 1 can obtain the low power information of the battery pack assembly 5. At the same time, when there is a problem or fault with the rechargeable battery 502 inside the battery pack assembly 5, the main body 1 stops working and prompts a fault code, making the use safer.

[0033] Preferably, the main unit 1 includes a concave base 103 and a holding portion 104. The concave base 103 is located at one end of the holding portion 104, and the cutter head assembly 2 is located at the other end of the holding portion 104. The first PCB board 4 is installed inside the concave base 103, and the first magnet 101, the two-way communication insert 10, and the power receiving component 102 are installed at the bottom of the concave base 103. A start button 105 and a gear shift button 106 electrically connected to the first PCB board 4 are provided on the side of the holding portion 104. The battery pack assembly 5 is hiddenly installed inside the concave base 103, and the bottom of the concave base 103 is flush with the bottom of the battery pack assembly 5. In this embodiment, the concave base 103 includes a bottom cover 1031 and a bottom lid 1032 that are buckled together, and the first magnet 101 is embedded in the bottom lid 1032. By setting the bottom of the main unit 1 as the concave base 103 and then hiddenly installing the battery pack assembly 5 inside the concave base 103, it is ensured to be integrated with the main unit 1, making the overall structure more beautiful and not obtrusive.

[0034] Preferably, for easy disassembly, the holding portion 104 includes a left cover body 1041 and a right cover body 1042 that are buckled together. The interior of the left cover body 1041 and the right cover body 1042 forms a receiving chamber for installing the driver 3. The output shaft of the driver 3 is connected with a rotating sleeve 16, and the rotating sleeve 16 is used to conveniently fix the transmission shaft 204. The driver 3 is a motor.

[0035] Preferably, in order to obtain the charging status in time during charging, a battery power display button 17 electrically connected to the second PCB board 9 is further provided on one side of the battery housing 501 facing the tail of the main unit 1, and a battery charge display lamp 18 electrically connected to the second PCB board 9 is provided on the side of the battery housing 501 away from the tail of the main unit 1. As Figure 11 shown, in this embodiment, the battery housing 501 protects the battery upper cover and the battery lower cover that are buckled together, and the power interface 6, the battery charge display lamp 18, and the second magnet 7 are clamped in the battery lower cover. In this embodiment, by adding the battery power display button 17 and the battery charge display lamp 18 (there are 4 battery charge display lamps 18 in this embodiment, and all 4 being on indicates that the battery is fully charged), and the battery charge display lamp 18 can only be lit when the battery power display button 17 is pressed, the energy-saving effect is achieved.

[0036] Preferably, for the convenience of disassembly and to improve the fixing effect on the tool head, the tool head assembly 2 includes a connecting sleeve 201, a wrapping piece 202, an outer cover 203, a transmission shaft 204 located in the inner cavity of the outer cover 203, and a blade 205 connected to the lower end of the transmission shaft 204. The upper end of the outer cover 203 and the wrapping piece 202 are both connected to the connecting sleeve 201. The outer cover 203 is connected to the holding part 104 through the connecting sleeve 201. On the outer side of one end of the holding part 104, two stop grooves 19 and two symmetrical elastic buckles 20 are symmetrically arranged. Inside the connecting sleeve 201, a stop block 21 cooperating with the elastic buckle 20 is provided. On the stop card, a limit groove 23 into which the elastic buckle 20 can be snapped after the connecting sleeve 201 rotates in place and a stop piece 22 cooperating with the stop groove 19 are provided. When the elastic buckle 20 is snapped into the limit groove 23, the stop piece 22 is snapped into the stop groove 19 and locked. The wrapping piece 202 is sleeved outside the connecting sleeve 201. The upper end of the transmission shaft 204 passes through the connecting sleeve 201 and is inserted into the driver 3. At a position of the transmission shaft 204 close to the blade 205, a water baffle 29 is provided. In this embodiment, as Figure 4 shown, one end of the outer cover 203 is in an umbrella-shaped structure, and the umbrella-shaped structure can wrap the blade 205. A through hole for the transmission shaft 204 to pass through is provided in the center of the umbrella-shaped structure. The water baffle 29 is placed below the through hole in the center of the umbrella-shaped structure to prevent liquid from entering the rod part of the outer cover 203 through the through hole during the stirring process. In the above structure, after rotating the connecting sleeve 201, it is ensured that the elastic buckle 20 is snapped into the limit groove 23. At this time, the stop groove 19 cooperates with the stop piece 22, and finally the fixing of the connecting sleeve 201 is realized. The wrapping piece 202 is sleeved outside the connecting sleeve 201 to protect the connecting sleeve 201.

[0037] Preferably, to further enhance the fixing effect on the transmission shaft, one or more sector-shaped positioning ribs 24 are annularly arranged inside the rotating sleeve 16. An arc-shaped groove 25 is arranged on the outer side of each sector-shaped positioning rib 24. All the arc-shaped grooves 25 cooperate to form a clamping hole 26. The upper end of the transmission shaft 204 is inserted into the clamping hole 26. Two positioning pieces 28 are also arranged at the upper end of the transmission shaft 204. The positioning pieces 28 are inserted into the gap 27 between two adjacent sector-shaped positioning ribs 24. In this embodiment, during use, the end of the transmission shaft 204 with two positioning pieces 28 is inserted into the rotating sleeve 16. The transmission shaft 204 is clamped by the clamping hole 26, and in cooperation with the two positioning pieces 28 inserted into the gap 27, the transmission shaft 204 is tightly fixed. Since a silica gel positioning sleeve 2041 is sleeved on the transmission shaft 204, and the silica gel positioning sleeve 2041 is placed inside the connecting sleeve 201, the transmission shaft 204 is plugged into the connecting sleeve 201 in this way. Then, after the connecting sleeve 201 rotates, the elastic buckle 20 is snapped into the limit groove 23. At this time, the stop piece 22 is snapped into the stop groove 19 to lock the transmission shaft 204. Moreover, the silica gel positioning sleeve 2041 is movably sleeved outside the transmission shaft 204 and can be removed later. And because the silica gel positioning sleeve 2041 is made of silica gel material, it has high damping after being sleeved on the transmission shaft 204, ensuring that the silica gel positioning sleeve 2041 will not rotate randomly.

[0038] In this structure, a magnetic battery pack assembly 5 is provided at the tail of the main body 1. The rechargeable battery 502 in the battery pack assembly 5 is separately arranged and not installed inside the main body 1. When the rechargeable battery 502 in the battery pack assembly 5 needs to be charged, the entire battery pack assembly 5 can be removed, which realizes the convenient removal of the battery from the main body 1 and solves the problem that "in the prior art, since the battery is placed inside the main body 1, the battery is prone to heat during charging, damaging the internal electronic components and ultimately reducing the service life of the product".

[0039] It should be noted that the specific models of the first PCB board 4 and the second PCB board 9, how the first PCB board 4 realizes two-way communication connection with the second PCB board 9, how the second PCB board 9 obtains the battery power of the rechargeable battery 502, and how the first PCB board 4 generates a fault code and prompts the fault code according to the problems and faults of the obtained rechargeable battery 502 belong to the conventional technologies in this field, so no detailed description will be given.

[0040] The above are only the preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the foregoing embodiments, any equivalent replacement of some technical features, and any modification, equivalent replacement, and improvement made all fall within the protection scope of the present invention.

Claims

1. A hand-held blender, comprising a main body (1) and a cutter head assembly (2). A driver (3) and a first PCB board (4) for controlling the operation of the driver (3) are provided in the main body (1). The cutter head assembly (2) is detachably provided at the head of the main body (1) so that the cutter head assembly (2) can be driven by the driver (3) to perform stirring. It is characterized in that: The tail of the host (1) is magnetically connected to a battery pack assembly (5). The battery pack assembly (5) includes a battery housing (501) and rechargeable batteries (502) arranged inside the battery housing (501). Two magnets I (101) and a power receiving component (102) are arranged at the tail of the host (1). The power receiving component (102) is electrically connected to the first PCB board (4). A power interface (6), a magnet II (7), and a power supply interface (8) are arranged on one side of the battery housing (501) facing the tail of the host (1). The power interface (6) is used to charge the rechargeable batteries (502). The magnet II (7) is magnetically matched with the magnet I (101). The power supply interface (8) is used to connect to the power receiving component (102) to supply electrical energy to the driver (3).

2. The hand-held blender according to claim 1, wherein: A second PCB board (9) is also arranged inside the battery housing (501). The second PCB board (9) is electrically connected to the rechargeable batteries (502), the power interface (6), and the power supply interface (8). A two-way communication insert (10) electrically connected to the first PCB board (4) is also embedded and connected at the tail of the host (1). A two-way communication interface (11) electrically connected to the second PCB board (9) is also embedded and connected on one side of the battery housing (501) facing the tail of the host (1). The two-way communication interface (11) is connected to the two-way communication insert (10) to enable two-way communication between the second PCB board (9) and the first PCB board (4) for obtaining battery status information.

3. A hand-held blender according to claim 2, characterized in that: The power receiving component (102) includes three positive charging pins (12) and three negative charging pins (13). The power supply interface (8) includes three positive socket contacts (14) respectively inserted and connected to the three positive charging pins (12) and three negative socket contacts (15) respectively inserted and connected to the three negative charging pins (13). There are four two-way communication inserts (10) in total, and there are also four corresponding two-way communication interfaces (11).

4. A hand-held blender according to claim 1, characterized in that: The host (1) includes a concave base (103) and a holding part (104). The concave base (103) is located at one end of the holding part (104). The cutter head assembly (2) is located at the other end of the holding part (104). The first PCB board (4) is installed inside the concave base (103). The magnet I (101), the two-way communication insert (10), and the power receiving component (102) are installed at the bottom of the concave base (103). A start button (105) and a gear shift button (106) electrically connected to the first PCB board (4) are arranged on the side of the holding part (104). The battery pack assembly (5) is installed inside the concave base (103) in a hidden manner, and the bottom of the concave base (103) is flush with the bottom of the battery pack assembly (5).

5. A hand-held blender according to claim 4, characterized in that: The described holding part (104) includes a left cover body (1041) and a right cover body (1042) that are buckled with each other. The interior of the left cover body (1041) and the right cover body (1042) forms a receiving chamber for installing the driver (3). The output shaft of the driver (3) is connected with a rotating sleeve (16).

6. The hand-held blender according to claim 2, characterized in that: On one side of the battery housing (501) facing the tail of the host (1), there is also a battery power display button (17) electrically connected to the second PCB board (9). On the side of the battery housing (501) away from the tail of the host (1), there is a battery charge display lamp (18) electrically connected to the second PCB board (9).

7. A hand-held blender according to claim 4, characterized in that: The cutter head assembly (2) includes a connecting sleeve (201), a wrapping piece (202), an outer cover (203), a transmission shaft (204) located in the inner cavity of the outer cover (203), and a blade (205) connected to the lower end of the transmission shaft (204). The upper end of the outer cover (203) and the wrapping piece (202) are both connected to the connecting sleeve (201). The outer cover (203) is connected to the holding part (104) through the connecting sleeve (201). On the outer side of one end of the holding part (104), there are symmetrically arranged two position-limiting grooves (19) and two symmetric elastic buckles (20). Inside the connecting sleeve (201), there is a position-limiting block (21) that cooperates with the elastic buckle (20). On the position-limiting card, there are a limiting groove (23) into which the elastic buckle (20) can be snapped after the connecting sleeve (201) rotates in place, and a position-limiting piece (22) that cooperates with the position-limiting groove (19). When the elastic buckle (20) snaps into the limiting groove (23), the position-limiting piece (22) snaps into the position-limiting groove (19) and locks. The wrapping piece (202) is sleeved outside the connecting sleeve (201). The upper end of the transmission shaft (204) passes through the connecting sleeve (201) and is inserted into the driver (3). A water baffle (29) is arranged at a position of the transmission shaft (204) close to the blade (205).

8. A hand-held blender according to claim 5, characterized in that, One or more sector-shaped positioning ribs (24) are annularly arranged inside the rotating sleeve (16). An arc-shaped groove (25) is arranged on the outer side of each sector-shaped positioning rib (24). All the arc-shaped grooves (25) cooperate to form a clamping hole (26). The upper end of the transmission shaft (204) is inserted into the clamping hole (26). Two positioning pieces (28) are also arranged at the upper end of the transmission shaft (204). The positioning pieces (28) are inserted into the gap (27) between two adjacent sector-shaped positioning ribs (24).

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