Food processor

Abstract

The utility model belongs to the technical field of food processing devices, and particularly relates to a food processing machine which comprises a main machine, a supporting seat arranged in the main machine, a motor assembly and a smashing cup which are installed on the supporting seat, and a power panel connected with the motor assembly. The power panel comprises a PCB vertically arranged on one side of the supporting seat and a plurality of power device modules protruding from the PCB away from the supporting seat, a protective support is further arranged in the host and comprises a back plate and a baffle bent from the top end of the back plate to the protruding direction of the power device modules, the baffle covers the upper portions of connecting pins of the power device modules and the PCB, and the power device modules are connected with the power device modules through the baffle. And the bottom end of the back plate is not higher than the bottom end of the PCB. Through the protection support, water flow is effectively prevented from directly dropping on the connecting pins or the PCB, short circuit damage of the power panel is avoided, and the waterproofness of the power panel is improved. Meanwhile, the protection support is simple in structure, good heat dissipation of the power device modules is achieved, assembly between the protection support and the power panel is easier, and the overall occupied space is small.

Description

Technical Field

[0001] The utility model belongs to the technical field of food processing devices, and in particular relates to a food processing machine. Background Art

[0002] A food processor generally includes a main unit, a motor assembly and a grinding cup arranged in the main unit, and a power board connected to the motor assembly. The power board is installed inside the main unit, and the motor assembly is connected to the power board. For some food processors with detachable grinding cups, after the user removes the grinding cup for cleaning, the grinding cup will carry cleaning water, and during the installation of the grinding cup, the cleaning water may accidentally drip onto the installation platform of the main unit, and then flow to the power board inside the main unit, causing damage to the power board.

[0003] The utility model patent with application number 202320188485.6 discloses a waterproof and shockproof food processor circuit board, which includes a waterproof box and a movable plate movably arranged inside the waterproof box, a third groove body is fixedly provided on the upper end of the movable plate, and a circuit board body is fixedly installed on the inner wall of the lower end of the third groove body. The circuit board body is limited by the third groove body and wrapped by the waterproof box, which can prevent water from entering the circuit board, has a shockproof structure, and can improve the protection of the circuit board.

[0004] However, for the power board used in the food processing machine, a power device module for driving the motor needs to be set on the power board. In particular, for the power board for driving the brushless motor, the power device modules have different sizes and heights. Therefore, if the waterproof box structure of the existing technology is directly adopted, it will inevitably cause difficulties in assembling the power board and the waterproof box, increase the overall volume of the assembly structure, and occupy a larger internal space of the host. In addition, for the power devices of the driving motor, such as the IPM module and the heat dissipation module, a good heat dissipation environment needs to be provided, otherwise it will cause a large temperature rise of the power board and affect the service life. If a wrapped waterproof box is directly used, it will be not conducive to the heat dissipation of the power devices. Utility Model Content

[0005] The utility model provides a food processing machine, which not only solves the problem that a power board is easily damaged by water, but also further solves the problem in the prior art that a waterproof structure is difficult to assemble and affects the heat dissipation of the power board.

[0006] The technical solution adopted by the utility model is:

[0007] The utility model provides a food processing machine, comprising a main machine, a support base arranged in the main machine, a motor assembly and a grinding cup installed on the support base, and a power supply board connected to the motor assembly, wherein the support base protrudes upward, and the power supply board comprises a PCB board vertically arranged on one side of the support base and a plurality of power device modules protruding from the PCB board away from the support base, and a protective bracket is also arranged in the main machine, and the protective bracket comprises a back plate installed between the PCB board and the support base and a baffle plate bent from the top of the back plate toward the protruding direction of the power device module, and the baffle plate blocks the connection pins between each of the power device modules and the PCB board, and the bottom end of the back plate is not higher than the bottom end of the PCB board.

[0008] The food processing machine provided by the utility model is provided with a power supply board, on which a power device module capable of driving a motor is provided, so that the operation of the motor drives the crushing blade in the crushing cup to rotate to realize the pulping function. The power supply board includes a PCB board arranged vertically on one side of the support seat. Compared with being arranged horizontally in the main machine, it can save the internal space of the main machine and reduce the probability of water flowing directly above the PCB board. A protective bracket is arranged inside the host, and a baffle of the protective bracket is bent from the top of the back plate toward the protruding direction of the power device module. Therefore, the baffle extends laterally to shield above the connecting pins between each power device module and the PCB board, thereby effectively preventing water from directly dripping onto the connecting pins or the PCB board when the host enters water, thereby preventing the power board from being damaged by a short circuit, and improving the waterproofness of the power board. Since the baffle is bent from the back plate, when water droplets entering the host fall onto the baffle to form a water flow, the water flow will flow downward from the upper surface of the baffle along the side of the back plate away from the power board due to its fluidity along the wall, and be smoothly led away, thereby preventing excessive water flow above the baffle from dripping from the edge of the baffle onto the power board and the power device module. Moreover, the bottom end of the back plate is not higher than the bottom end of the PCB board, thereby effectively preventing water from splashing onto the power board at the bottom end of the back plate, and further improving the waterproofness of the power board. On this basis, since the protective bracket only uses the back plate and the baffle to form an open water retaining structure, under the premise of effectively isolating the water source, there is no need to wrap the power board and the power device module, so as to achieve good heat dissipation of each power device module. At the same time, the protective bracket has a simple structure, is easier to assemble with the power board, occupies a small space as a whole, and facilitates the rational use of the internal space of the host.

[0009] In a preferred embodiment, a rib is protruding from the upper surface of the baffle, and the rib extends along the edge of the baffle to form a water retaining groove.

[0010] By arranging ribs on the upper surface of the baffle, the ribs extend along the edge of the baffle to form a water retaining groove. Therefore, when there is too much water flow on the baffle, the water flow can be temporarily stored in the water retaining groove to prevent the water flow from directly reaching the edge of the baffle and splashing onto the power board. At the same time, the ribs can prevent the water droplets from splashing outward at too fast a speed. Therefore, the baffle can not only block the water flow but also store a part of the water flow, thereby improving the waterproof effect of the power board.

[0011] In a preferred embodiment, the water retaining groove is provided with a water outlet on a side close to the back plate.

[0012] By setting a water outlet on the side of the water retaining groove close to the back plate, the discharge of water temporarily stored in the water retaining groove can be accelerated to prevent water from accumulating above the baffle for a long time. This not only realizes the waterproofing of the power board, but also facilitates the discharge of accumulated water, prevents water from accumulating inside the host, and avoids the internal environment of the host from being humid.

[0013] In a preferred embodiment, the baffle is arranged to be inclined downward toward one side of the back plate, and an inclined water guide surface is formed on the upper surface of the baffle.

[0014] By tilting the baffle downward toward one side of the back panel, an inclined water guide surface is formed, so that water dripping onto the top of the baffle can be discharged more thoroughly along the back of the back panel. The water cannot flow from the edge of the baffle to the open side, further preventing water from flowing toward the power board. At the same time, water accumulation above the baffle is prevented from causing moisture in the internal environment of the host, thereby providing a dry environment for the power board.

[0015] In a preferred embodiment, the support seat is protruding on the base of the host, the base is provided with a drain port, and a drainage channel connected to the drain port is provided between the back plate and the side wall of the support seat.

[0016] By setting up a drainage channel, water flowing down the back panel can continue to flow along the drainage channel to the drain port to be discharged to the outside, preventing the water flow from spreading inside the host to other parts of the base and preventing the internal environment of the host from being humid.

[0017] In a preferred embodiment, the protective bracket further includes two side panels shielding the two sides of the PCB board, and the two side panels are both connected to the back panel and enclosed with the baffle to form a protective cavity for accommodating the PCB board.

[0018] The protective bracket also includes two side panels, which provide lateral protection for the PCB board. The protective cavity formed by the enclosure can achieve multi-directional limiting and water-proof protection for the PCB board while achieving good heat dissipation, thereby improving the waterproof effect. Moreover, the protective cavity is conducive to the fixed assembly of the PCB board and the protective bracket, and is conducive to combining the two into a whole and then fixing them together in the host, thereby realizing modular assembly, improving assembly efficiency and reliability, and strengthening the connection between the back panel and the baffle.

[0019] In a preferred embodiment, the inner side wall of the protective cavity is provided with clips arranged circumferentially around the PCB board at intervals, and the PCB board is clipped into the protective cavity through the clips;

[0020] Alternatively, a fixing column is provided on the back plate, and the PCB board is locked to the fixing column by a fastener;

[0021] Alternatively, the side plate is provided with a mounting lug, and the mounting lug is locked on the support seat by a fastener.

[0022] Whether using clips or fasteners, the PCB board and the protective bracket can be reliably fixed to achieve modular assembly. Clips arranged around the PCB board in a circumferentially spaced manner are provided on the inner side wall of the protective cavity to limit the edge of the PCB and strengthen the fixation of the PCB board and the protective bracket. At the same time, the clips have a certain strengthening effect on the strength of the protective bracket itself, ensuring the reliability of waterproofing. By providing a fixing column on the back plate and locking the PCB board on the fixing column with a fastener, the assembly is simple and reliable.

[0023] By using the fixing method of locking the mounting lugs on the side panel and the support seat with fasteners, it is possible to prevent the power board from interfering with the side panel and the support seat during the fixing process. Therefore, the mounting lugs make the assembly process between the power board and the protective bracket and the assembly process between the protective bracket and the support seat independent of each other and do not interfere with each other. The assembly sequence is flexible, so that the power board can be indirectly installed on the side of the support seat through the protective bracket. The assembly steps are simple and the assembly is reliable.

[0024] In a preferred embodiment, the support seat is protruded on the base of the host, and the base of the host is provided with an air inlet located below the power board. The protective bracket also includes a bottom plate protruding outward from the bottom end of the back plate and connecting the two side plates. The power device module includes a heat dissipation module, and the outer end of the heat dissipation module protrudes from the outer end of the bottom plate.

[0025] By setting up the bottom plate, the strength of the protective bracket itself can be enhanced, and at the same time, the protection of the power board by the protective cavity can be made more comprehensive, thereby improving the waterproof performance of all directions of the power board. Since heat dissipation holes are generally provided on the base, the outer end of the heat dissipation module protrudes from the outer end of the bottom plate, thereby preventing the bottom plate from obstructing the heat dissipation airflow and affecting the heat dissipation effect of the heat dissipation module, thereby ensuring reliable heat dissipation of the power board.

[0026] In a preferred embodiment, the motor assembly includes a brushless motor, and the PCB board is divided into a first partition for setting the EMC module, a second partition for setting the electrolytic capacitor module, and a third partition for setting the heat dissipation module along the horizontal direction, and the baffle includes a first shielding portion, a second shielding portion, and a third shielding portion corresponding to the first partition, the second partition, and the third partition, wherein the protruding height of the second shielding portion is greater than the protruding height of the first shielding portion, and the protruding height of the third shielding portion is not less than the protruding height of the first shielding portion.

[0027] The motor assembly includes a brushless motor, which can effectively reduce the height of the motor assembly, realize effective utilization of the internal space of the host, and reduce the height of the entire machine. The power device module includes an EMC module, an electrolytic capacitor module, an IPM module, and a heat dissipation module covering the IPM module, etc. to realize the driving of the brushless motor. The baffle includes a first shielding portion, a second shielding portion, and a third shielding portion corresponding to the first partition, the second partition, and the third partition. For different power device modules in each partition, the baffle has a corresponding shielding height, thereby ensuring a water-blocking effect while avoiding obstruction to the circulation of the heat dissipation airflow, ensuring the heat dissipation effect, and avoiding redundant design.

[0028] In a preferred embodiment, a heat dissipation cover arranged outside the heat dissipation module is further provided in the host, and the heat dissipation cover and the protective bracket together form a heat dissipation cavity wrapping the heat dissipation module, and the heat dissipation cavity is provided with heat dissipation holes.

[0029] Since the protective bracket has a simple structure and is open, the method of using the heat dissipation cover and the protective bracket to enclose a heat dissipation cavity is convenient for the independent installation of each component and at the same time realizes the concentration of airflow, so that the cold air can fully pass through the heat dissipation module in the heat dissipation cavity and then flow out from the heat dissipation holes, thereby taking away the heat in the heat dissipation cavity, realizing full utilization of the airflow and improving heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0031] Figure 1This is a schematic cross-sectional structure diagram of a food processing machine in one embodiment of the utility model;

[0032] Figure 2 This is a structural schematic diagram of a support base in one embodiment of the utility model;

[0033] Figure 3 This is a schematic diagram of the structure of a protective bracket in one embodiment of the utility model;

[0034] Figure 4 This is a structural schematic diagram of a power board assembly in one embodiment of the utility model;

[0035] Figure 5 This is a schematic structural diagram of a protective bracket in another embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 10. Main unit; 11. Casing; 12. Base; 121. Drain outlet; 122. Air inlet; 20. Support seat; 30. Motor assembly; 40. Crushing cup; 50. Power board; 51. PCB board; 52. Power device module; 521. Heat dissipation module; 522. EMC module; 523. Electrolytic capacitor module; 60. Protective bracket; 61. Back plate; 62. Baffle; 63. Rib; 64. Water retaining trough; 65. Side plate; 651. Mounting lug; 66. Protective cavity; 661. Rib; 67. Bottom plate; 70. Heat dissipation cover; 71. Heat dissipation hole; 80. Water tank; 90. Drain valve; 91. Slurry collecting cup; 92. Residual water box. DETAILED DESCRIPTION

[0038] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present invention and the features in each embodiment may be combined with each other without conflict.

[0040] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "horizontal", "vertical", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0043] like Figure 1 As shown, the utility model provides a food processing machine, including a main machine 10, a support base 20 arranged in the main machine 10, a motor assembly 30 and a grinding cup 40 installed on the support base 20, and a power supply board 50 connected to the motor assembly 30. The main machine 10 includes a housing 11 and a base 12, and the support base 20 protrudes upward relative to the base 12, as shown in FIG. Figure 2 As shown, the power board 50 includes a PCB board 51 vertically arranged on one side of the support base 20 and a plurality of power device modules 52 protruding from the PCB board 51 away from the support base. A protective bracket 60 is also provided in the host 10. Figure 3 As shown, the protective bracket 60 includes a back plate 61 installed between the PCB board 51 and the support seat 20 and a baffle 62 bent from the top of the back plate 61 toward the protruding direction of the power device module, the baffle 62 blocks the connection pins between each power device module and the PCB board, and the bottom end of the back plate 61 is not higher than the bottom end of the PCB board.

[0044] like Figure 1As shown, the food processor provided in this embodiment is a food processor that does not require hand washing. The main machine is also equipped with a water tank 80 that supplies water to the crushing cup to achieve automatic pulping and automatic cleaning. The crushing cup is equipped with a drain valve 90. After pulping is completed, the drain valve 90 is opened to discharge pulp to the pulp receiving cup 91, and after cleaning is completed, the drain valve is opened to discharge waste water to the residual water box 92. Optionally, the crushing cup 40 is detachably mounted on the main machine, or the crushing cup 40 is fixedly mounted on the main machine 10. Of course, it should be noted that the form of the food processor of the utility model is not limited to a food processor that does not require hand washing, and it can also be a wall breaking machine with a separate main machine and a crushing cup.

[0045] The food processing machine provided by the utility model is provided with a power supply board 50, on which a power device module 52 capable of driving a motor is disposed, so that the operation of the motor drives the crushing blade in the crushing cup 40 to rotate to realize the pulping function. The power supply board 50 includes a PCB board 51 vertically arranged on one side of the support base 20. Compared with being horizontally arranged in the main unit 10, the internal space of the main unit 10 can be saved, and the probability of water flowing directly above the PCB board 51 can be reduced. A protective bracket 60 is provided inside the host 10, and a baffle 62 of the protective bracket 60 is bent from the top of the back plate 61 toward the protruding direction of the power device module 52. Therefore, the baffle 62 extends laterally to shield the connection pins between each power device module 52 and the PCB board 51, thereby effectively preventing water from directly dripping onto the connection pins or the PCB board 51 when the host 10 is flooded, thereby preventing the power board 50 from being damaged by a short circuit and improving the waterproofness of the power board 50. Since the baffle 62 is bent from the back plate 61, when water drops entering the host 10 fall onto the baffle 62 to form a water flow, the water flow will flow downward from the upper surface of the baffle 62 along the side of the back plate 61 away from the power board 50 due to its fluidity along the wall, and be smoothly led away. The water flow path is referenced. Figure 3 As shown by the middle arrow, preferably, a drain port 121 is provided on the base 12 for discharging water to the outside, thereby preventing excessive water flow above the baffle 62 from dripping from the edge of the baffle 62 onto the power board 50 and the power device module 52. Moreover, the bottom end of the back plate 61 is not higher than the bottom end of the PCB board 51, thereby effectively preventing water flow from splashing onto the power board 50 at the bottom end of the back plate 61, further improving the waterproofness of the power board 50. On this basis, since the protective bracket 60 only uses the back plate 61 and the baffle 62 to form an open water retaining structure, under the premise of effectively blocking the water source, it is not necessary to wrap the power board 50 and the power device module 52, so as to achieve good heat dissipation of each power device module 52. At the same time, the protective bracket 60 has a simple structure, is easier to assemble with the power board 50, occupies a small space as a whole, and is convenient for rational use of the internal space of the host 10.

[0046] The present invention does not limit the specific structure of the protective bracket 60. For example, it can adopt any of the following implementation examples:

[0047] Implementation example 1, such as Figure 3 , 4 As shown, the protective bracket 60 also includes two side panels 65 that cover both sides of the PCB board 51 and a bottom panel 67 that protrudes outward from the bottom end of the back panel 61 and connects the two side panels. The two side panels 65 are both connected to the back panel 61. The back panel 61, the baffle 62, the bottom panel 67 and the side panels 65 together enclose a protective cavity 66 for accommodating the PCB board 51.

[0048] In this embodiment, preferably, the inner side wall of the protective cavity 66 is provided with clips 661 arranged circumferentially around the PCB board 51 at intervals, and the PCB board 51 is clipped into the protective cavity 66 through the clips 661 .

[0049] Of course, in order to further fix the PCB board 51 and the back plate 61, optionally, a fixing column is further provided on the back plate 61, and the PCB board 51 is locked to the fixing column by a fastener such as a screw.

[0050] It should be noted that the PCB board 51 can also be fixed in the protective cavity 66 by bonding, snap connection, etc. In this embodiment, the PCB board is first fixed to the protective bracket 60 to form a power board assembly, and then the power board assembly is fixed to the support seat together for easy assembly.

[0051] Specifically, Figure 3 , 4 As shown, the side plate 65 is provided with a mounting lug 651, and the mounting lug 651 is locked on the support base 20 by a fastener, such as a screw.

[0052] In this embodiment, the two side panels 65 provide lateral protection for the PCB board 51, and the bottom panel 67 provides bottom limit reinforcement for the PCB board 51. The protective cavity 66 formed by the enclosure can achieve multi-directional limit and water-proof protection for the PCB board 51 while achieving good heat dissipation, thereby improving the waterproof effect. Moreover, the protective cavity 66 is conducive to the fixed assembly of the PCB board 51 and the protective bracket 60, and is conducive to combining the two into a whole and then fixing them together in the host 10, thereby realizing modular assembly, improving assembly efficiency and reliability, and strengthening the connection between the back panel 61 and the baffle 62.

[0053] Whether using the clip ribs 661 or the fasteners, the PCB board 51 and the protective bracket 60 can be reliably fixed to achieve modular assembly. The clip ribs 661 arranged circumferentially around the PCB board 51 are provided on the inner side wall of the protective cavity 66 to limit the edge of the PCB, strengthen the fixation of the PCB board 51 and the protective bracket 60, and the clip ribs 661 have a certain strengthening effect on the strength of the protective bracket 60 itself, ensuring the reliability of waterproofing. By providing a fixing column on the back plate 61, the PCB board 51 is locked on the fixing column by using fasteners, and the assembly is simple and reliable.

[0054] By using the fixing method of locking the mounting lug 651 on the side panel 65 and the support seat 20 with fasteners, it is possible to prevent the power board 50 from interfering with the side panel 65 and the support seat 20 during the fixing process. Therefore, the mounting lug 651 makes the assembly process between the power board 50 and the protective bracket 60 and the assembly process between the protective bracket 60 and the support seat 20 independent of each other and do not interfere with each other, so that the power board 50 is indirectly installed on the side of the support seat 20 through the protective bracket 60, and the assembly steps are simple and the assembly is reliable.

[0055] Of course, in reality, the fixing method between the protective bracket 60 and the support base 20 is not limited to the one mentioned above. A fixing hole can also be opened on the back panel. First, the screws are passed through the fixing holes and locked to the support base to achieve a reliable connection between the protective bracket and the support base. Then, the PCB board is covered with the screw area to fix the PCB board to the back panel.

[0056] Implementation Example 2

[0057] like Figure 5 As shown, the protective bracket 60 includes a back plate 61 installed between the PCB board 51 and the support seat 20 and a baffle 62 bent from the top of the back plate 61 toward the protruding direction of the power device module, the baffle 62 blocks the connection pins between each power device module and the PCB board, and the bottom end of the back plate 61 is not higher than the bottom end of the PCB board.

[0058] In this implementation example, studs are optionally provided on the back plate 61, corresponding screw holes are provided on the PCB board 51, and the PCB board 51 is directly locked to the back plate 61 by screws to achieve reliable fixation.

[0059] In a preferred embodiment, Figure 1-4 As shown, the upper surface of the baffle 62 is provided with a rib 63, and the rib 63 extends along the edge of the baffle 62 to form a water retaining groove 64. The water retaining groove 64 is provided with a water outlet on one side close to the back plate 61, so that the water flow above the baffle flows along the Figure 3 Flow in the direction indicated by the arrow.

[0060] By providing the ribs 63 on the upper surface of the baffle 62, the ribs 63 extend along the edge of the baffle 62 to form a water retaining groove 64. Therefore, when there is too much water on the baffle 62, the water can be temporarily stored in the water retaining groove 64, and the water can be prevented from directly reaching the edge of the baffle 62 and splashing onto the power board 50. At the same time, the ribs 63 can prevent the splashing caused by the dripping speed being too fast. Therefore, the baffle 62 can not only block the water flow but also store part of the water flow, thereby improving the waterproof effect of the power board 50. By providing a water outlet on the side of the water retaining groove 64 close to the back plate 61, the water temporarily stored in the water retaining groove 64 can be discharged faster, and the water flow can be prevented from accumulating on the top of the baffle 62 for a long time, which not only realizes the waterproofing of the power board 50, but also facilitates the discharge of the accumulated water, prevents the water flow from accumulating inside the host 10, and avoids the internal environment of the host 10 from being humid.

[0061] In a preferred embodiment, the baffle plate 62 is arranged to be inclined downward toward one side of the back plate 61 , and an inclined water guide surface is formed on the upper surface of the baffle plate 62 .

[0062] By tilting the baffle 62 downward toward one side of the back plate 61, an inclined water guide surface is formed, so that water dripping onto the top of the baffle 62 can be more thoroughly discharged along the back side of the back plate 61, and the water cannot flow from the edge of the baffle 62 to the open side, further preventing water from flowing toward the power board 50. At the same time, water accumulation above the baffle 62 is prevented from causing the internal environment of the host 10 to be damp, thereby providing a dry environment for the power board 50.

[0063] In a preferred embodiment, the support seat 20 is protruded on the base 12 of the host 10 , the base 12 is provided with a drain port, and a drainage channel connected to the drain port 121 is provided between the back plate 61 and the side wall of the support seat 20 .

[0064] It should be noted that the specific structure of the drainage channel is not limited to the use of a water pipe, or two convex ribs arranged in parallel are provided on the base 12, and the two convex ribs enclose to form the drainage channel.

[0065] By setting up a drainage channel, water flowing down the back panel 61 can continue to flow along the drainage channel to the drain port to be discharged to the outside, preventing the water flow from spreading inside the host 10 to other parts of the base 12 and preventing the internal environment of the host 10 from being humid.

[0066] like Figure 2 As shown, in a preferred embodiment, the support base 20 is convexly disposed on the base 12 of the host 10, and the base 12 of the host 10 is provided with an air inlet 122 located below the power board 50, Figure 2 and Figure 4As shown, the protection bracket 60 also includes a bottom plate 67 that protrudes outward from the bottom end of the back plate 61 and connects the two side plates. The power device module 52 includes a heat dissipation module 521, and the outer end of the heat dissipation module 521 protrudes from the outer end of the bottom plate 67.

[0067] In this embodiment, by providing a bottom plate, the strength of the protective bracket 60 can be enhanced, and at the same time, the protective cavity can provide more comprehensive protection for the power board 50, thereby improving the waterproof performance of the power board 50 in all directions. Since heat dissipation holes are generally provided on the base 12, the outer end of the heat dissipation module protrudes from the outer end of the bottom plate, thereby preventing the bottom plate from obstructing the heat dissipation airflow and affecting the heat dissipation effect of the heat dissipation module, thereby ensuring reliable heat dissipation of the power board 50.

[0068] The present invention does not limit the structure of the motor assembly. Preferably, the motor assembly includes a brushless motor. To achieve the driving of the brushless motor, the power device module 52 includes not only a heat dissipation module 521 but also an EMC module 522, an electrolytic capacitor module 523, and the like.

[0069] like Figure 4 As shown, the PCB board 51 is divided into a first partition where the EMC module 522 is set, a second partition where the electrolytic capacitor module 523 is set, and a third partition where the heat dissipation module 521 is set along the horizontal direction, and the baffle 62 includes a first shielding portion 621, a second shielding portion 622 and a third shielding portion 623 corresponding to the first partition, the second partition and the third partition, wherein the protrusion height of the second shielding portion 622 is greater than the protrusion height of the first shielding portion 621, and the protrusion height of the third shielding portion 623 is not less than the protrusion height of the first shielding portion 621.

[0070] In this embodiment, the motor assembly 30 includes a brushless motor, which can effectively reduce the height of the motor assembly 30, realize the effective use of the internal space of the host 10, and reduce the height of the whole machine. The power device module 52 includes an EMC module, an electrolytic capacitor module, an IPM module and a heat dissipation module covering the IPM module, etc. to realize the driving of the brushless motor. The baffle 62 includes a first shielding portion, a second shielding portion and a third shielding portion corresponding to the first partition, the second partition and the third partition. For different power device modules 52 in each partition, the baffle 62 has a corresponding shielding height, so as to ensure that the connecting pins of different modules can be shielded accordingly, while ensuring the water blocking effect, avoiding obstruction to the circulation of the heat dissipation airflow, ensuring the heat dissipation effect, and avoiding redundant design.

[0071] Combination Figure 2 , Figure 4 As shown, while the protective bracket is installed, in order to ensure effective heat dissipation of the power board, a heat dissipation cover 70 is also provided in the host 10 and is arranged outside the heat dissipation module 521. The heat dissipation cover 70 and the protective bracket 60 together form a heat dissipation cavity that wraps the heat dissipation module, and the heat dissipation cavity is provided with heat dissipation holes 71.

[0072] Since the protective bracket 60 has a simple structure and is open, the heat dissipation chamber is formed by enclosing the heat dissipation cover 70 and the protective bracket 60 together, which is convenient for the independent installation of each component and at the same time realizes the concentration of airflow, so that the cold air can fully pass through the heat dissipation module in the heat dissipation chamber and then flow out from the heat dissipation hole 71, thereby taking away the heat in the heat dissipation chamber, realizing full utilization of the airflow and improving the heat dissipation efficiency.

[0073] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0074] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0075] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A food processing machine, characterized in that: It includes a main unit, a support base arranged in the main unit, a motor assembly and a crushing cup installed on the support base, and a power supply board connected to the motor assembly, wherein the support base protrudes upward, and the power supply board includes a PCB board vertically arranged on one side of the support base and a plurality of power device modules protruding from the PCB board away from the support base. A protective bracket is also provided in the main unit, and the protective bracket includes a back plate installed between the PCB board and the support base and a baffle bent from the top of the back plate toward the protruding direction of the power device module, wherein the baffle blocks the connection pins between each power device module and the PCB board, and the bottom end of the back plate is not higher than the bottom end of the PCB board.

2. A food processing machine according to claim 1, characterized in that: The upper surface of the baffle is protrudingly provided with ribs, and the ribs extend along the edge of the baffle to form a water retaining groove.

3. A food processing machine according to claim 2, characterized in that: The water retaining groove is provided with a water outlet on one side close to the back plate.

4. A food processing machine according to claim 1, characterized in that: The baffle is arranged to be inclined downward toward one side of the back plate, and an inclined water guide surface is formed on the upper surface of the baffle.

5. A food processing machine according to claim 1, characterized in that: The support seat is convexly arranged on the base of the main machine, the base is provided with a drainage port, and a drainage channel communicating with the drainage port is provided between the back plate and the side wall of the support seat.

6. A food processing machine according to any one of claims 1 to 5, characterized in that: The protective bracket also includes two side plates covering two sides of the PCB board, and the two side plates are both connected to the back plate and enclosed with the baffle to form a protective cavity for accommodating the PCB board.

7. A food processing machine according to claim 6, characterized in that: The inner side wall of the protective cavity is provided with clamping ribs which are arranged circumferentially and spaced apart around the PCB board, and the PCB board is clamped in the protective cavity through the clamping ribs; Alternatively, a fixing column is provided on the back plate, and the PCB board is locked to the fixing column by a fastener; Alternatively, the side plate is provided with a mounting lug, and the mounting lug is locked on the support seat by a fastener.

8. A food processing machine according to claim 6, characterized in that: The support seat is protruded on the base of the host, and the base of the host is provided with an air inlet located below the power board. The protective bracket also includes a bottom plate protruding outward from the bottom end of the back plate and connecting the two side plates. The power device module includes a heat dissipation module, and the outer end of the heat dissipation module protrudes from the outer end of the bottom plate.

9. A food processing machine according to claim 1, characterized in that: The motor assembly includes a brushless motor, and the PCB board is divided into a first partition for setting an EMC module, a second partition for setting an electrolytic capacitor module, and a third partition for setting a heat dissipation module along the horizontal direction. The baffle includes a first shielding portion, a second shielding portion, and a third shielding portion corresponding to the first partition, the second partition, and the third partition, wherein the protrusion height of the second shielding portion is greater than the protrusion height of the first shielding portion, and the protrusion height of the third shielding portion is not less than the protrusion height of the first shielding portion.

10. A food processing machine according to claim 9, characterized in that: The host is also provided with a heat dissipation cover arranged outside the heat dissipation module, and the heat dissipation cover and the protective bracket are combined to form a heat dissipation cavity that wraps the heat dissipation module, and the heat dissipation cavity is provided with heat dissipation holes.

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