Food processor with compact structure

Abstract

The utility model belongs to the technical field of kitchen appliances, and discloses a food processor with a compact structure, which comprises a main machine and a crushing cup with a built-in crushing cutter, the main machine comprises a shell, a brushless motor arranged in the shell, a power panel and a capacitor separated from the power panel, the capacitor is electrically connected with the power panel, and the brushless motor is used for driving the crushing cutter to rotate. The power panel is further provided with an IPM module for driving the brushless motor and a cooling fin covering the IPM module, the power panel is vertically arranged on one side of the brushless motor, and the capacitor is arranged on the other side of the brushless motor. The utility model solves the problems that the length of the host along a certain direction in the radial direction is too long, so that the length-width ratio is not coordinated and the occupied space is increased, realizes the compact structure of the host, saves the occupied space, and is convenient for a user to store and take.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen appliances, and in particular relates to a food processor with a compact structure. Background Art

[0002] A food processor consists of a main unit and a grinding cup. The main unit houses a power board and motor, while the grinding cup houses a grinding blade. The motor drives the blades to rotate, grinding the material for the production of soy milk or juice. Traditional food processors are mostly driven by series-wound motors. However, these motors are bulky and, in particular, tall, making the main unit taller and more inconvenient for users. Reducing the overall height of food processors has long been a pressing technical challenge for those skilled in the art.

[0003] The applicant has previously developed a food processing machine driven by a brushless motor. The brushless motor is relatively low in height and compact in size. However, the brushless motor requires a capacitor module and an IPM module to be installed on the power board to drive it. The IPM module, or intelligent power module, is a highly integrated power electronic device that integrates power switching devices, drive circuits, and fault detection circuits such as overvoltage, overcurrent, and overheating. This increases the size of the machine. Moreover, due to the capacitance requirements of the brushless motor, the capacitor module also needs to be relatively large. Considering the strong electrical connection between the capacitor module and the power board, conventional capacitor modules are generally welded to the power board to form an integral part. This results in the power board integrating the IPM module and capacitor module being relatively large. Therefore, after the motor and power board are installed in the main unit, the length of the power board usually exceeds the length of the motor. As a result, the main unit is radially lengthened along the long side of the power board. Although the height of the main unit is reduced, the main unit is radially lengthened in one direction, resulting in an unbalanced length-to-width ratio of the main unit. This still increases the space occupied when stored and is not convenient for users to access.

[0004] The applicant has previously proposed a patent with application number 202321087545.1, which discloses a safe food processing machine. In this solution, a power supply board, a protective cover and an isolation capacitor are arranged in the installation cavity of the machine base (main unit). The power supply board is arranged in the protective cover, and the isolation capacitor is connected to the power supply board and is arranged on the outside of the protective cover. In this solution, the isolation capacitor is independently arranged relative to the power supply board, which can reduce the size of the power supply board itself. However, since the power supply board is arranged horizontally in the installation cavity and the power supply board is located on the radial side of the motor, the sizes of the power supply board and the motor are superimposed in the radial direction of the main unit along the arrangement direction of the two. Therefore, the size of the main unit along this direction is too long, and the main unit as a whole is flat and long, and there is still a problem of occupying a large space. Utility Model Content

[0005] The utility model provides a food processing machine with a compact structure. On the basis of adopting a brushless motor to reduce the height of the main machine, the structure and arrangement of the power supply board driving the brushless motor are optimized, so as to solve the problem that the main machine is too long in a certain radial direction, resulting in an unbalanced length-to-width ratio and an increase in the occupied space.

[0006] The technical solution adopted by the present invention is as follows: the present invention provides a food processing machine with a compact structure, comprising a main unit and a crushing cup with a built-in crushing blade, the main unit comprising a housing, a brushless motor arranged in the housing, a power board and a capacitor separately arranged from the power board, the capacitor being electrically connected to the power board, the brushless motor being used to drive the crushing blade to rotate, the power board also being provided with an IPM module for driving the brushless motor and a heat sink covering the IPM module, the power board being vertically arranged on one side of the brushless motor, and the capacitor being arranged on the other side of the brushless motor.

[0007] The utility model provides a compact food processing machine. The main unit includes a housing, a brushless motor disposed within the housing, a power supply board, and a capacitor disposed separately from the power supply board. The brushless motor is smaller and lower in height than a conventional series-wound motor, thereby reducing the height of the main unit. Since the IPM module generates a large amount of heat, a heat sink is provided to effectively dissipate heat. Furthermore, the capacitor and power supply board are disposed separately so that their heat generation does not affect each other, thereby effectively dissipating heat. Furthermore, the separate arrangement of the capacitor and power supply board helps reduce the size of the power supply board itself, preventing the power supply board from exceeding the length of the motor, thereby reducing the length of the main unit and the space occupied by the main unit, resulting in a more compact structure. The power supply board is disposed vertically on one side of the brushless motor, while the capacitor is disposed on the other side of the brushless motor. This effectively utilizes the space between the motor and the housing, improving space utilization within the housing. Furthermore, the power supply board is disposed vertically, with the plane on which the power supply board is located extending vertically. Compared to a horizontal arrangement of the power supply board, this avoids the radial overlap of the power supply board and the brushless motor, further reducing the length of the main unit and making the cross-section of the main unit more square, thereby avoiding the problem of an unbalanced length-to-width ratio of the main unit. This also saves space and facilitates storage of the entire unit. Because the console is more square and not too long in any one direction, users can easily hold the console with both hands no matter from which angle, making it easier for users to pick up the console and improving the user experience.

[0008] In a preferred embodiment, the power board and the capacitor are respectively arranged on two opposite sides of the brushless motor.

[0009] The power board provides the necessary power to the motor through the IPM module, generating significant heat. Capacitors, on the other hand, smooth current and voltage, reducing electromagnetic interference and improving the power factor. When the power board and capacitors are placed on opposite sides of the brushless motor, the impact of IPM module heat on the capacitors is reduced, helping to balance current and voltage fluctuations and reduce vibration and noise during motor operation, thereby improving motor efficiency and lifespan. This arrangement also distributes heat more evenly within the housing, facilitating heat dissipation and further protecting the motor from damage.

[0010] In a preferred embodiment, the host further includes a control board disposed in the housing, the control board is vertically disposed on one side of the brushless motor, and the power board, the control board, and the capacitor are arranged in sequence along the circumference of the brushless motor.

[0011] By arranging a control board in the host, it is convenient for users to control the program of the whole machine. The control board is vertically arranged on one side of the brushless motor, and the space between the brushless motor and the shell is reasonably utilized, thereby improving the utilization rate of the internal space of the shell. The control board is placed vertically, which further reduces the radial size of the host, so that the size of the host is reduced not only on the side where the power board is installed, but also on the side where the control board is installed. The radial size of the host is reduced, saving space. The power board, the control board, and the capacitor are arranged in sequence along the circumference of the brushless motor, so that the cross section of the host is close to square, the proportions are coordinated, and the whole machine is easy to pick up.

[0012] In a preferred embodiment, the host further includes a heat dissipation cover arranged between the power board and the brushless motor, a first air duct connected to the outside world is provided between the power board and the heat dissipation cover, and the IPM module and the heat sink are located in the first air duct.

[0013] The heat dissipation shield forms a first air duct between the shield and the power board. The IPM module and heat sink are located in this first air duct. Therefore, cool air from the outside world passes through the first air duct to dissipate heat from the IPM module. The heat sink increases the heat dissipation area and improves the heat dissipation effect. Furthermore, the heat dissipation shield is located between the power board and the brushless motor, isolating them and reducing heat transfer, which facilitates heat dissipation from the IPM module and the brushless motor.

[0014] More preferably, the heat sink includes a plurality of heat dissipation fins arranged at intervals, and the plurality of heat dissipation fins divide the first air duct into a plurality of air flow channels.

[0015] Furthermore, a single heat dissipation fin extends laterally, and a plurality of heat dissipation fins are spaced apart and arranged in parallel vertically; or a single heat dissipation fin extends vertically, and a plurality of heat dissipation fins are spaced apart and arranged in parallel along the extension direction of the detection plate.

[0016] The heat sink includes a plurality of heat dissipation fins arranged at intervals, and the plurality of heat dissipation fins divide the first air duct into a plurality of air flow channels, so that each heat dissipation fin can fully exchange heat with the cold air entering from the outside, thereby improving the heat dissipation effect and extending the service life of the power board.

[0017] More preferably, the brushless motor includes a motor cover and a main body arranged in the motor cover, the motor cover encloses and forms a second air duct communicating with the outside, and the first air duct is communicated with the second air duct.

[0018] The brushless motor includes a motor cover and a main body. The motor cover encloses a second air duct connected to the outside world. The outside cold air enters the second air duct defined by the motor cover and exchanges heat with the main body of the motor to achieve motor heat dissipation. The first air duct is connected to the second air duct, so that the cold air passes through the first air duct and the second air duct and then is discharged to the outside world, thereby achieving synchronous heat dissipation of the main body of the brushless motor and the IPM module, thereby improving the heat dissipation effect.

[0019] Furthermore, the inlet and outlet of the second air duct are both opened on the side wall of the motor cover.

[0020] By opening the inlet and outlet of the second air duct on the side wall of the motor cover, the airflow flows smoothly, the airflow velocity is accelerated, the heat dissipation efficiency is improved, and there is no need to set a guide structure at the bottom of the motor cover to increase the height of the main unit, which is conducive to reducing the height of the main unit.

[0021] In a preferred embodiment, a slot is provided on a side wall of the housing, and the capacitor is fixed in the slot.

[0022] More preferably, the slot extends vertically, the capacitor is vertically inserted into the slot, and the bottom wall of the housing is provided with supporting ribs for supporting the capacitor.

[0023] The sidewalls of the housing are designed with slots for inserting capacitors, simplifying both capacitor installation and the host structure. The slots extend vertically, and support ribs are provided on the bottom wall of the housing to support the capacitors. Therefore, when the capacitors are installed from top to bottom, they are held in place by the slots and support ribs, providing a secure fixing structure and preventing them from falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 of the present invention. In the drawings:

[0025] Figure 1 This is a structural diagram of a food processing machine in one embodiment of the present invention;

[0026] Figure 2This is a schematic diagram of the explosion structure of the host in one embodiment of the present invention;

[0027] Figure 3 This is a partial structural cross-sectional view of the host in one embodiment of the present utility model;

[0028] Figure 4 This is a longitudinal cross-sectional diagram of a host in one embodiment of the present invention;

[0029] Figure 5 This is a schematic transverse cross-sectional view of a host in one embodiment of the present invention;

[0030] Explanation of the accompanying reference numerals: 10, main unit; 20, grinding cup; 11, housing; 12, brushless motor; 13, power board; 131, IPM module; 132, heat sink; 14, capacitor; 15, control board; 16, heat dissipation cover; 17, motor cover; 18, first air duct; 19, second air duct. DETAILED DESCRIPTION

[0031] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0032] The following description sets forth many specific details to facilitate a thorough understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein, and therefore, the scope of protection 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 of each embodiment may be combined with each other unless there is a conflict.

[0033] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 cannot be understood as a limitation on the present invention.

[0034] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0035] In the present invention, 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 present invention. 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.

[0036] like Figure 1-5 As shown, the present invention provides a food processor with a compact structure in one embodiment, including a main unit 10 and a crushing cup 20 with a built-in crushing blade, as shown in FIG. Figure 2 As shown, the main unit includes a housing 11, a brushless motor 12 arranged in the housing 11, a power board 13 and a capacitor 14 separately arranged from the power board 13, the capacitor 14 is electrically connected to the power board 13, the brushless motor 12 is used to drive the crushing knife to rotate, and the power board 13 is also provided with an IPM module 131 for driving the brushless motor and a heat sink 132 covering the IPM module. The power board 13 is vertically arranged on one side of the brushless motor 12, and the capacitor 14 is arranged on the other side of the brushless motor 12.

[0037] The present invention provides a compact food processing machine, wherein the main unit 10 includes a housing 11, a brushless motor 12 disposed within the housing 11, a power board 13, and a capacitor 14 disposed separately from the power board 13. The brushless motor 12 is compact and has a lower height than a conventional series-excited motor, which helps to reduce the height of the main unit 10. Since the IPM module 131 generates a large amount of heat during operation, good heat dissipation is achieved by providing a heat sink. At the same time, the capacitor 14 and the power board 13 are disposed separately so that their respective heat generation does not affect each other, thereby achieving good heat dissipation. In addition, by separating the capacitor 14 and the power board 13, the volume of the power board 13 itself is reduced, and the length of the power board 13 is prevented from exceeding the length of the motor, thereby reducing the length of the main unit 10, which helps to reduce the space occupied by the main unit 10 and make the structure more compact. The power board 13 is vertically arranged on one side of the brushless motor 12, and the capacitor 14 is arranged on the other side of the brushless motor 12, which rationally utilizes the space between the motor and the housing 11 and improves the space utilization rate inside the housing 11. In addition, the power board 13 is vertically arranged, and the plane where the power board 13 is located extends vertically. Compared with the horizontal arrangement of the power board 13, the overlap of the radial dimensions of the power board 13 and the brushless motor 12 is avoided, thereby further reducing the length of the host 10, making the cross-section of the host 10 more square, avoiding the problem of the unbalanced length-to-width ratio of the host 10, and saving the space occupied by the host 10. Since the host 10 is more square rather than too long in one direction, the user can easily hold the host 10 with both hands no matter from which angle, which is convenient for the user to take and improves the user experience.

[0038] In a preferred embodiment, Figure 2 、 3 As shown, the power board 13 and the capacitor 14 are respectively arranged on two opposite sides of the brushless motor 12.

[0039] Power board 13 provides the necessary power to the motor via IPM module 131, generating significant heat. Capacitor 14 smoothes current and voltage, reducing electromagnetic interference and improving the power factor. When power board 13 and capacitor 14 are positioned on opposite sides of brushless motor 12, the impact of heat from IPM module 131 on capacitor 14 is reduced, helping to balance current and voltage fluctuations and reduce vibration and noise during motor operation, thereby improving motor efficiency and lifespan. Furthermore, this layout allows for more even heat distribution within housing 11, facilitating heat dissipation and further protecting the motor from damage.

[0040] In a preferred embodiment, Figure 3 、 4 As shown, the host 10 further includes a control board 15 disposed in the housing 11 . The control board 15 is vertically disposed on one side of the brushless motor 12 . The power board 13 , the control board 15 , and the capacitor 14 are arranged in sequence along the circumference of the brushless motor 12 .

[0041] In this embodiment, the side of the food processor facing the user when placed on a work surface is defined as its front side. In this embodiment, the control board 15 is located in front of the brushless motor 12, while the power board 13 and capacitor 14 are located on the left and right sides of the brushless motor 12. The arrangement of the power board 13 and capacitor 14 shortens the radial length of the main unit 10 in the left-right direction, making it more convenient for the user to hold the main unit 10 with both hands.

[0042] By setting a control board 15 in the host 10, it is convenient for users to control the entire machine program. The control board 15 is vertically set on one side of the brushless motor 12, and the space between the brushless motor 12 and the shell 11 is reasonably utilized to improve the utilization rate of the internal space of the shell 11. The control board 15 is placed vertically, which further reduces the radial size of the host 10, so that the size of the host 10 is reduced not only on the side where the power board 13 is installed, but also on the side where the control board 15 is installed. The radial size of the host 10 is reduced, saving space. The power board 13, the control board 15, and the capacitor 14 are arranged in sequence along the circumference of the brushless motor 12, so that the cross section of the host 10 is close to square, the proportions are coordinated, and the whole machine is easy to pick up.

[0043] In a preferred embodiment, Figure 2 、 5 As shown, the host 10 also includes a heat dissipation cover 16 arranged between the power board 13 and the brushless motor 12. A first air duct 18 connected to the outside is provided between the power board 13 and the heat dissipation cover 16. The IPM module 131 and the heat sink are located in the first air duct 18.

[0044] More preferably, the heat sink includes a plurality of heat dissipation fins arranged at intervals, and the plurality of heat dissipation fins divide the first air duct 18 into a plurality of air flow channels.

[0045] Furthermore, a single heat dissipation fin extends horizontally, and multiple heat dissipation fins are arranged vertically at intervals and in parallel; or, a single heat dissipation fin extends vertically, and multiple heat dissipation fins are arranged vertically at intervals and in parallel along the extension direction of the detection plate.

[0046] By providing a heat dissipation cover 16, a first air duct 18 is formed between the heat dissipation cover 16 and the power board 13. The IPM module 131 and the heat sink are located in the first air duct 18. Therefore, the IPM module 131 is cooled by the external cold air passing through the first air duct 18. The heat sink increases the heat dissipation area and improves the heat dissipation effect. Furthermore, the heat dissipation cover 16 is located between the power board 13 and the brushless motor 12, isolating them and reducing heat transfer, which facilitates heat dissipation of the IPM module 131 and the brushless motor 12.

[0047] The heat sink includes multiple heat dissipation fins arranged at intervals, and the multiple heat dissipation fins divide the first air duct 18 into multiple air flow channels, so that each heat dissipation fin can fully exchange heat with the cold air entering from the outside, thereby improving the heat dissipation effect and extending the service life of the power board 13.

[0048] More preferably, the brushless motor 12 includes a motor cover 17 and a main body arranged in the motor cover 17, the main body includes a stator, a rotor and a cooling fan, the motor cover 17 encloses a second air duct 19 connected to the outside, the first air duct 18 is connected to the second air duct 19, and optionally, the outlet of the first air duct 18 is connected to the inlet of the second air duct 19, so that the cold air from the outside first passes through the IPM module to dissipate heat and then dissipates heat to the main body of the motor. The flow direction of the cooling airflow is as follows: Figure 5 Indicated by the linear arrow.

[0049] Of course, in other embodiments, the inlet of the first air duct 18 may be connected to the outlet of the second air duct 19 so that the external cold air first passes through the main body of the motor to dissipate heat before passing through the IPM module.

[0050] The brushless motor 12 includes a motor cover 17 and a main body. The motor cover 17 encloses a second air duct 19 that is connected to the outside world. The external cold air enters the second air duct 19 defined by the motor cover 17 and exchanges heat with the main body of the motor to achieve motor heat dissipation. The first air duct 18 is connected to the second air duct 19, so that the cold air passes through the first air duct 18 and the second air duct 19 and is then discharged to the outside world, thereby achieving synchronous heat dissipation of the main body of the brushless motor 12 and the IPM module 131, thereby improving the heat dissipation effect.

[0051] Furthermore, the inlet and outlet of the second air duct 19 are both opened on the side wall of the motor cover 17 .

[0052] By opening the inlet and outlet of the second air duct 19 on the side wall of the motor cover 17, the air flow is smooth, the air flow rate is accelerated, and the heat dissipation efficiency is improved. Of course, in other embodiments, the inlet or outlet of the second air duct 19 can also be set at the bottom of the motor cover 17. Generally, the need to set a guide structure will increase the height of the host 10. Therefore, this embodiment preferably opens the inlet and outlet of the second air duct 19 on the side wall of the motor cover 17. There is no need to set a guide structure at the bottom of the motor cover 17 to increase the height of the host 10, which is beneficial to reducing the height of the host 10.

[0053] It should be noted that the second air duct for heat dissipation of the motor in the present invention is not limited to the above-mentioned structure. In fact, the first air duct and the second air duct can be independently set and separated from each other, and the second air duct has a separate air inlet connected to the outside.

[0054] It should also be noted that the present invention does not limit the fixing method of the capacitor 14. For example, in a preferred embodiment, a slot is provided on the side wall of the housing 11, and the capacitor 14 is fixed in the slot.

[0055] More preferably, the slot extends vertically, the capacitor 14 is vertically inserted into the slot, and a supporting rib for supporting the capacitor 14 is provided on the bottom wall of the housing 11 .

[0056] By providing a slot in the side wall of housing 11, capacitor 14 is inserted into the slot, simplifying the installation of capacitor 14 and simplifying the structure of host 10. The slot extends vertically, and support ribs are provided on the bottom wall of housing 11 to support capacitor 14. Therefore, after capacitor 14 is installed from top to bottom, the slot and support ribs jointly restrain it in place, providing a reliable fixing structure and preventing capacitor 14 from falling.

[0057] Of course, the capacitor 14 can also be directly fixed to the side wall or base of the housing 11 by screws to achieve reliable installation.

[0058] Anything not described in this utility model can be achieved by adopting or drawing on existing technologies.

[0059] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0060] The above are merely examples of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. A compact food processor comprising a main unit and a crushing cup with a built-in crushing blade, characterized in that: The host includes a housing, a brushless motor arranged in the housing, a power board and a capacitor separately arranged from the power board, the capacitor is electrically connected to the power board, the brushless motor is used to drive the crushing knife to rotate, and the power board is also provided with an IPM module driving the brushless motor and a heat sink covering the IPM module. The power board is vertically arranged on one side of the brushless motor, and the capacitor is arranged on the other side of the brushless motor.

2. A compact food processor according to claim 1, characterized in that: The power board and the capacitor are respectively arranged on two opposite sides of the brushless motor.

3. A compact food processor according to claim 1, characterized in that: The host further includes a control board disposed in the housing, wherein the control board is vertically disposed on one side of the brushless motor, and the power board, the control board, and the capacitor are sequentially arranged along the circumference of the brushless motor.

4. A compact food processor according to claim 1, characterized in that: The host further includes a heat dissipation cover arranged between the power board and the brushless motor. A first air duct communicating with the outside is arranged between the power board and the heat dissipation cover. The IPM module and the heat sink are located in the first air duct.

5. A compact food processor according to claim 4, characterized in that: The heat sink includes a plurality of heat dissipation fins arranged at intervals, and the plurality of heat dissipation fins divide the first air duct into a plurality of air flow channels.

6. A compact food processor according to claim 5, characterized in that: A single heat dissipation fin extends laterally, and a plurality of heat dissipation fins are vertically spaced and arranged in parallel; Alternatively, a single heat dissipation fin extends vertically, and a plurality of heat dissipation fins are spaced apart and arranged in parallel along the extension direction of the detection plate.

7. A compact food processor according to claim 4, characterized in that: The brushless motor includes a motor cover and a main body arranged in the motor cover. The motor cover encloses and forms a second air duct communicating with the outside, and the first air duct is communicated with the second air duct.

8. A compact food processor according to claim 7, characterized in that: The inlet and outlet of the second air duct are both opened on the side wall of the motor cover.

9. A compact food processor according to claim 1, characterized in that: The side wall of the housing is provided with a slot, and the capacitor is fixed in the slot.

10. A compact food processor according to claim 9, characterized in that: The slot extends vertically, the capacitor is vertically inserted into the slot, and the bottom wall of the housing is provided with supporting ribs for supporting the capacitor.

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