CN117462009A - Support, base assembly of electrical equipment and electrical equipment - Google Patents

Abstract

The invention relates to the technical field of household appliances, and discloses a bracket, a base assembly of electrical equipment and the electrical equipment, wherein the bracket is used for installing a weighing sensor, the weighing sensor comprises a fixing part, a cantilever weighing part and a stress part, the fixing part is suitable for being fixedly arranged, and the cantilever weighing part is suitable for installing a strain gauge; the bracket is suitable for being connected with the stress part and is used for driving the stress part to move up and down so as to deform the cantilever weighing part; convex ribs are arranged on two sides of the support and located below the fixing portion. Compared with the prior art, the support is used for driving the cantilever weighing part to deform, has an overload protection function, is simple in structure, has a small number of parts, and is beneficial to improving the assembly efficiency.

Description

Support, base assembly of electrical equipment and electrical equipment

Technical Field

The invention relates to the technical field of household appliances, in particular to a bracket, a base assembly of electrical equipment and the electrical equipment.

Background

In general, the scale is arranged in the inner pot of the traditional electric cooker, when cooking, a user can refer to the scale to add water, and for some cast iron inner pots without coating, the scale cannot be transferred and printed in the inner pot, so that the user cannot accurately control the specific gravity of the water rice, and the cooked rice cannot achieve the optimal effect.

The related art discloses a weighing mechanism, a pot body and cooking utensil, and weighing mechanism sets up in cooking utensil, includes: the weighing sensor comprises a body and a cantilever part, wherein the fixed end of the cantilever part is fixedly connected with the body, and the suspension end of the cantilever part is suspended relative to the body; the limiting piece is positioned above the weighing sensor along the gravity direction; the supporting feet are positioned below the weighing sensor along the gravity direction; the cantilever part is arranged on the surface of the limiting part, and is provided with a limiting space in advance in the gravity direction.

The supporting leg and the limiting piece in the related art are respectively located above and below the weighing sensor, namely the supporting leg for enabling the cantilever part of the weighing sensor to deform and the limiting piece for limiting the deformation of the cantilever part are of two different structures, and the weighing mechanism is more in number of parts and inconvenient to assemble.

Disclosure of Invention

In view of the above, the invention provides a bracket, a base assembly of an electrical apparatus and the electrical apparatus, so as to solve the problems of a large number of parts of a weighing mechanism and inconvenient assembly in the related art.

In a first aspect, the present invention provides a bracket for mounting a load cell, the load cell comprising a fixed portion, a cantilever load portion and a force receiving portion, the fixed portion being adapted to be fixedly disposed, the cantilever load portion being adapted to mount a strain gauge;

the support is suitable for being connected with the stress part and used for driving the stress part to move up and down so as to deform the cantilever weighing part;

convex ribs are arranged on two sides of the support, and the convex ribs are located below the fixing portions.

The beneficial effects are that: after the atress, the support drives the jack-up of atress portion, can make cantilever weighing portion take place to warp to the strainometer takes place to warp thereupon, and the atress is different, and the deflection of cantilever weighing portion is different thereupon, thereby causes the resistance in the strainometer to change, and the controller converts the power value according to the change of strainometer resistance value again, consequently can realize weighing function, through setting up protruding muscle in the both sides of support, protruding muscle can play the supporting role to the fixed part, prevents that weighing sensor's cantilever weighing portion from warping and damaging from appearing, plays overload protection's effect. Meanwhile, compared with the related art, the support is used for driving the cantilever weighing part to deform and has the overload protection function, the structure is simple, the number of parts is small, and the assembly efficiency is improved.

In an alternative embodiment, the distance between the convex rib and the fixing part is B, and B is more than or equal to 0.1mm and less than or equal to 1mm.

The beneficial effects are that: through making the distance between protruding muscle and the fixed part between 0.1mm to 1mm, when the support atress, can drive cantilever weighing portion and warp, when the deflection of cantilever weighing portion exceeds the settlement clearance, protruding muscle on the support can support weighing sensor's fixed part, prevents weighing sensor's cantilever weighing portion and continues to warp and appear damaging, plays overload protection's effect.

In an alternative embodiment, the center of the bracket is provided with a groove;

the stress parts are symmetrically arranged on two sides of the cantilever weighing part, the cantilever weighing part is suitable for being positioned in the groove, and the strain gauge is suitable for having a gap with the bottom of the groove.

The beneficial effects are that: the stress parts are symmetrically arranged on the two sides of the cantilever weighing part, so that the cantilever weighing part can be conveniently installed, and the cantilever weighing part can be uniformly stressed. Through making the strainometer set up on cantilever weighing portion and have the clearance with the tank bottom of recess, can ensure that the strainometer can not support the tank bottom of pressing the recess after the deformation to guarantee the accuracy of weighing.

In an alternative embodiment, the distance between the cantilever weighing part and the bottom of the groove is A, and A is more than or equal to 1mm and less than or equal to 3mm.

The beneficial effects are that: the distance between the cantilever weighing part and the bottom of the groove is between 1mm and 3mm, so that the strain gauge can be prevented from being propped against the bottom of the groove after deformation, and the weighing accuracy is ensured.

In an alternative embodiment, the bracket is further provided with mounting grooves, the mounting grooves are located on two sides of the groove, the bottom of each mounting groove is higher than the bottom of each groove, and the stress part is suitable for being fixedly arranged in each mounting groove.

The beneficial effects are that: through setting up the mounting groove, be convenient for carry out location installation to atress portion, can make weighing sensor's top in addition can not bulge in the support, avoid the upper end atress of atress portion and influence measurement accuracy.

In a second aspect, the present invention also provides a base assembly of an electrical device, including:

a base;

the bracket;

the weighing sensor comprises a fixed part, a cantilever weighing part and a stress part, wherein the stress part is fixedly arranged on the bracket, and the cantilever weighing part is provided with a strain gauge;

the bottom cover is fixedly connected with the base, the bottom cover is matched with the base to fix the fixing part on the base, and the support is suitable for driving the stress part to move up and down relative to the base and the bottom cover so as to deform the cantilever weighing part.

The beneficial effects are that: when food is filled in the inner pot of the electrical equipment, the base can move downwards relative to the support, the support further moves upwards relative to the base, the support drives the stress part to jack up upwards, the cantilever weighing part can deform, so that the strain gauge deforms accordingly, the weight of the inner pot is different, the deformation of the cantilever weighing part is different, the deformation of the strain gauge is also different, and the weight of water added during cooking can be calculated. The support is used for driving the cantilever weighing part to deform, can play the role of overload protection, has a simple structure and a small number of parts, and is beneficial to improving the assembly efficiency. Through installing weighing sensor in the support, support and base are split structure, can avoid weighing sensor's precision to receive the influence because of the base is the injection molding deformation.

In an alternative embodiment, the base is provided with a containing cavity, a fixing rib is arranged in the containing cavity, the fixing rib is located around the fixing portion, the fixing rib is provided with a matching rib, and the matching rib is in interference fit with the fixing portion.

The beneficial effects are that: when the weighing sensor is installed, the weighing sensor is installed on the support and then connected together by the support, then the weighing sensor is buckled and pressed in the accommodating cavity, the matching ribs are in interference fit with the fixing parts, the periphery of the weighing sensor is limited, the weighing sensor is prevented from loosening, the detection precision of components is improved, and the stability of a product is improved. The arrangement of the matching ribs improves the convenience of limiting the symmetrical weight sensor.

In an alternative embodiment, the bottom cover is snap-connected to the base.

The beneficial effects are that: the bottom cover and the base are connected in a simple and convenient mode, and the assembly efficiency can be improved.

In an alternative embodiment, the bottom cover is provided with a support rib, and the support rib abuts against the fixing portion.

The beneficial effects are that: the support rib supports the below at the fixed part and further symmetry weighing sensor spacing, prevents weighing sensor and rocks.

In an alternative embodiment, the bottom cover is provided with a mounting through hole, the bracket penetrates through the mounting through hole, and a supporting foot is arranged at one end of the bracket away from the weighing sensor and extends out of the bracket.

The beneficial effects are that: the setting of supporting legs plays a stable supporting role to whole electric rice cooker.

In an alternative embodiment, the bracket is provided with a connecting hole, and the support leg is clamped in the connecting hole from one end of the connecting hole away from the weighing sensor.

The beneficial effects are that: the supporting legs are kept away from weighing sensor's one end joint in the connecting hole from the connecting hole, and the connected mode of two is simple and convenient.

The invention also provides electrical equipment, which comprises the base assembly of the electrical equipment.

The beneficial effects are that: when food is filled in the inner pot of the electrical equipment, the base can move downwards relative to the support, the support moves upwards relative to the base, the support drives the stress part to jack up upwards, the cantilever weighing part can deform, so that the strain gauge deforms accordingly, the weight of the inner pot is different, the deformation of the cantilever weighing part is different, the deformation of the strain gauge is also different, the resistance in the strain gauge is changed, the controller converts the resistance into a force value according to the change of the resistance value of the strain gauge, and the weight of water added during cooking can be calculated. The support is used for driving the cantilever weighing part to deform, can play the role of overload protection, has a simple structure and a small number of parts, and is beneficial to improving the assembly efficiency. Through installing weighing sensor in the support, support and base are split structure, can avoid weighing sensor's precision to receive the influence because of the deformation of base injection molding.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a front view of an electrical device according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the base and the load cell, bracket, bottom cover, and support legs shown in FIG. 1, separated from each other;

FIG. 3 is a cross-sectional view of the base and load cell, bracket, bottom cover, and support legs of FIG. 1 shown assembled together;

FIG. 4 is an enlarged view at C in FIG. 3;

FIG. 5 is a schematic view of the base and load cell, bracket, bottom cover, and support legs of FIG. 1 assembled together;

FIG. 6 is an enlarged view of FIG. 5 at D;

FIG. 7 is a schematic view of the structure of the base;

FIG. 8 is an enlarged view at E in FIG. 7;

FIG. 9 is a cross-sectional view of the base;

FIG. 10 is a schematic structural view of a bracket;

FIG. 11 is a schematic diagram of the structure of the load cell;

fig. 12 is a schematic structural view of the bottom cover;

FIG. 13 is a schematic view of the structure of the load cell after it is mounted on the bracket;

FIG. 14 is a cross-sectional view of the load cell and support foot both mounted to the bracket.

Reference numerals illustrate:

1. a base; 101. a receiving chamber; 1011. fixing ribs; 1012. interference ribs; 1013. a clamping hole; 2. a bracket; 2011. a mounting groove; 2012. a groove; 202. convex ribs; 203. a connection hole; 2031. an annular protrusion; 2032. an inclined guide part; 3. a weighing sensor; 301. a fixing part; 3021. a cantilever weighing part; 3022. a force receiving part; 3023. a connection part; 4. a bottom cover; 401. an elastic buckle; 402. a support rib; 403. mounting through holes; 5. supporting feet; 501. a first columnar portion; 502. a second column section; 503. a tapered engagement portion; 6. a screw; 7. strain gauges.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Embodiments of the present invention are described below with reference to fig. 1 to 14.

According to a first aspect of the present invention, there is provided a bracket for mounting a load cell 3, the load cell 3 including a fixing portion 301, a cantilever weighing portion 3021 and a force receiving portion 3022, the fixing portion 301 being adapted for fixed arrangement, the cantilever weighing portion 3021 being adapted for mounting a strain gauge 7; the bracket 2 is adapted to be connected to the force receiving portion 3022, and is configured to drive the force receiving portion 3022 to move up and down, so as to deform the cantilever weighing portion 3021; the two sides of the bracket 2 are provided with ribs 202, and the ribs 202 are positioned below the fixing portion 301.

In this embodiment, after the stress, the support 2 drives the stress part 3022 to jack up, so that the cantilever weighing part 3021 deforms, the strain gauge 7 deforms accordingly, the stress is different, the deformation of the cantilever weighing part 3021 is different, the deformation of the strain gauge 7 is also different, the resistance in the strain gauge 7 is changed, and the controller converts the resistance into a force value according to the change of the resistance value of the strain gauge 7, so that the weighing function can be realized, and by arranging the ribs 202 on two sides of the support 2, the ribs 202 can support the fixing part 301, so that the cantilever weighing part 3021 of the weighing sensor 3 is prevented from being deformed to be damaged, and the overload protection function is realized. Meanwhile, compared with the related art, the bracket 2 is used for driving the cantilever weighing part 3021 to deform, has an overload protection function, is simple in structure, has a small number of parts, and is beneficial to improving the assembly efficiency.

In one embodiment, as shown in FIG. 14, the distance between bead 202 and fixed portion 301 is B,0.1 mm.ltoreq.B.ltoreq.1 mm.

In this embodiment, by making the distance between the protruding rib 202 and the fixing portion 301 be between 0.1mm and 1mm, when the support 2 is stressed, the cantilever weighing portion 3021 is driven to deform, and when the deformation amount of the cantilever weighing portion 3021 exceeds the set gap, the protruding rib 202 on the support 2 will abut against the fixing portion 301 of the weighing sensor 3, so as to prevent the cantilever weighing portion 3021 of the weighing sensor 3 from continuing to deform and damage, and play a role in overload protection.

Specifically, in one embodiment, the distance between the protruding rib 202 and the fixing portion 301 is 0.1mm, when the support 2 is stressed, the cantilever weighing portion 3021 is driven to deform, and when the deformation amount of the cantilever weighing portion 3021 exceeds the set gap, the protruding rib 202 on the support 2 abuts against the fixing portion 301 of the weighing sensor 3, so as to prevent the cantilever weighing portion 3021 of the weighing sensor 3 from being deformed continuously and damaged, and perform an overload protection function.

Specifically, in one embodiment, the distance between the protruding rib 202 and the fixing portion 301 is 1mm, when the support 2 is stressed, the cantilever weighing portion 3021 is driven to deform, and when the deformation amount of the cantilever weighing portion 3021 exceeds the set gap, the protruding rib 202 on the support 2 abuts against the fixing portion 301 of the weighing sensor 3, so as to prevent the cantilever weighing portion 3021 of the weighing sensor 3 from being deformed continuously and damaged, and perform an overload protection function.

Specifically, in one embodiment, the distance between the protruding rib 202 and the fixing portion 301 is 0.5mm, when the support 2 is stressed, the cantilever weighing portion 3021 is driven to deform, and when the deformation amount of the cantilever weighing portion 3021 exceeds the set gap, the protruding rib 202 on the support 2 abuts against the fixing portion 301 of the weighing sensor 3, so as to prevent the cantilever weighing portion 3021 of the weighing sensor 3 from being deformed continuously and damaged, and perform an overload protection function.

In one embodiment, as shown in fig. 11, the fixing portion 301 includes a peripheral frame, the stress portion 3022 and the cantilever weighing portion 3021 are disposed inside the peripheral frame, one end of the cantilever weighing portion 3021 is connected to the peripheral frame, and the other end is connected to the stress portion 3022.

In this embodiment, the fixing portion 301 includes a peripheral frame, the stress portion 3022 and the cantilever weighing portion 3021 are disposed inside the peripheral frame, and the peripheral frame can protect the cantilever weighing portion 3021 on one hand and can make the stress of the whole weighing sensor 3 relatively uniform on the other hand.

In an embodiment not shown in the drawings, the fixing portion 301 may be a cross beam.

In particular, in one embodiment, one end of the cantilever weighing section 3021 is connected to the middle of one edge of the peripheral rim.

Specifically, in one embodiment, the peripheral frame is a rectangular frame, and one end of the cantilever weighing portion 3021 is connected to the middle of the long side of the rectangular frame.

In an embodiment not shown in the figures, the shape of the peripheral rim may be other shapes, such as pentagonal, hexagonal, etc.

In one embodiment, as shown in fig. 10 and 11, the center of the bracket 2 is provided with a groove 2012; the stress portions 3022 are symmetrically arranged at two sides of the cantilever weighing portion 3021, the cantilever weighing portion 3021 is suitable for being located in the groove 2012, and the strain gauge 7 is suitable for having a gap with the bottom of the groove 2012.

In this embodiment, when the inner pot of the electric apparatus is filled with food, the cantilever weighing portion 3021 is deformed, so that the strain gauge 7 is deformed accordingly, the weight of the inner pot is different, the deformation amount of the cantilever weighing portion 3021 is different, the deformation amount of the strain gauge 7 is also different, and the weight of water added during cooking can be calculated. By symmetrically arranging the force receiving portions 3022 on both sides of the cantilever weighing portion 3021, the cantilever weighing portion 3021 is convenient to mount, and uniform force receiving of the cantilever weighing portion 3021 can be ensured. By having the strain gauge 7 disposed on the cantilever weighing section 3021 with a gap with the bottom of the recess 2012, it is ensured that the strain gauge 7 does not press against the bottom of the recess 2012 after deformation, thereby ensuring the accuracy of weighing.

Specifically, in one embodiment, the stress portion 3022 and the cantilever weighing portion 3021 are parallel to each other, one end of the stress portion 3022 is connected to the cantilever weighing portion 3021 through the connection portion 3023, the other end of the stress portion 3022 is installed in the installation groove 2011 through the screw 6, and deformation of the cantilever weighing portion 3021 after stress can be ensured.

In particular, in one embodiment, the load cell 3 is entirely a sheet metal part.

In one embodiment, as shown in FIG. 4, the distance between cantilever weigh 3021 and the bottom of recess 2012 is A,1 mm.ltoreq.A.ltoreq.3 mm.

In this embodiment, the distance between the cantilever weighing part 3021 and the bottom of the recess 2012 is between 1mm and 3mm, which ensures that the strain gauge 7 does not press against the bottom of the recess 2012 after deformation, thereby ensuring the accuracy of weighing.

Specifically in one embodiment, the distance between cantilever weigh 3021 and the bottom of recess 2012 is 1mm.

In another embodiment, the distance between cantilever weigh 3021 and the bottom of recess 2012 is 3mm.

In yet another embodiment, the distance between cantilever weigh 3021 and the bottom of recess 2012 is 2mm.

In one embodiment, the bracket 2 is further provided with a mounting groove 2011, the mounting groove 2011 is located at two sides of the groove 2012, the bottom of the mounting groove 2011 is higher than the bottom of the groove 2012, and the stress part 3022 is adapted to be fixedly arranged in the mounting groove 2011.

In this embodiment, the mounting groove 2011 is provided, so that the force receiving portion 3022 is positioned and mounted, and in addition, the top of the weighing sensor 3 does not protrude from the support 2, so that the upper end of the force receiving portion 3022 is prevented from being stressed to affect the measurement accuracy.

According to a second aspect of embodiments of the present invention, there is also provided a base assembly of an electrical device. The electric appliance may be an electric rice cooker, a pressure cooker, etc., and the embodiment is illustrated by the electric rice cooker.

In one embodiment, as shown in FIG. 2, the base assembly includes: a base 1, the bracket 2, the weighing sensor 3 and a bottom cover 4.

Wherein the bracket 2 has a mounting groove 201; the weighing sensor 3 comprises a fixed part 301, a cantilever weighing part 3021 and a force receiving part 3022, wherein the force receiving part 3022 is fixedly arranged on the bracket 2, and the cantilever weighing part 3021 is provided with a strain gauge 7; the bottom cover 4 is fixedly connected with the base 1, the bottom cover 4 is matched with the base 1 to fix the fixing portion 301 to the base 1, and the support 2 is suitable for driving the stress portion 3022 to move up and down relative to the base 1 and the bottom cover 4 so as to deform the cantilever weighing portion 302.

In this embodiment, when the inner pot of the electrical equipment is filled with food, the base 1 moves downward relative to the bracket 2, and then the bracket 2 moves upward relative to the base 1, the bracket 2 drives the force receiving part 3022 to jack up, the cantilever weighing part 302 deforms, so that the strain gauge 7 deforms accordingly, the weight of the inner pot is different, the deformation of the cantilever weighing part 302 is different, the deformation of the strain gauge 7 is different accordingly, the resistance in the strain gauge 7 changes, and the controller converts the resistance value into a force value according to the change of the resistance value of the strain gauge 7, so that the weight of water added during cooking can be calculated. The support 2 is used for driving the cantilever weighing part 3021 to deform, has an overload protection function, is simple in structure, has a small number of parts, and is beneficial to improving the assembly efficiency. By installing the weighing sensor 3 on the support 2, the support 2 and the base 1 are of a split structure, and the influence of the deformation of the base 1 on the precision of the weighing sensor 3 due to the deformation of the injection molding part can be avoided.

It should be noted that, regarding the specific weighing principle of the weighing sensor 3, the technology known to those skilled in the art is not described in detail in this embodiment.

In particular, in one embodiment, as shown in fig. 5, the base 1 is provided with four corners in total, the weighing sensors 3 are distributed at the four corners of the base 1, the weighing sensors 3 sense the specific gravity of rice water, and the control program can optimize the cooking logic according to the sensed specific gravity of rice water.

In one embodiment, as shown in fig. 6, the base 1 is provided with a receiving cavity 101, and the fixing portion 301 is limited in the receiving cavity 101.

In this embodiment, by limiting the fixing portion 301 in the accommodating chamber 101, since the loosening of the weighing sensor 3 can be prevented, the detection accuracy of the components can be improved, and the stability of the product can be improved.

In one embodiment, referring to fig. 6 and 8, a fixing rib 1011 is provided in the accommodating chamber 101, the fixing rib 1011 is located around the fixing portion 301, and the fixing rib 1011 is provided with a fitting rib which is interference fit with the fixing portion 301.

In this embodiment, when installing, install weighing sensor 3 on support 2 after, weighing sensor 3 links together in support 2, later withhold weighing sensor 3 in holding chamber 101, cooperation muscle and fixed part 301 interference fit, limit is carried out around weighing sensor 3, prevents that weighing sensor 3 from taking place not hard up, improves the detection precision of components and parts, improves the stability of product. The arrangement of the matching ribs improves the convenience of limiting the weight sensor 3.

In particular, in one embodiment, the interference of the engaging rib with the fixing portion 301 is preferably 0.1mm to 0.5mm.

In an embodiment not shown in the figures, the fixing portion 301 may be connected to the receiving cavity 101 by a snap-fit limit.

In one embodiment, the bottom cover 4 is snap-connected to the base 1.

In this embodiment, the connection between the bottom cover 4 and the base 1 is simple and convenient, and the assembly efficiency can be improved.

In particular, in one embodiment, as shown in fig. 8 and 12, the accommodating cavity 101 of the base 1 is provided with a clamping hole 1013, the bottom cover 4 is connected with an elastic buckle 401, and the elastic buckle 401 is clamped into the clamping hole 1013 to realize the clamping connection between the bottom cover 4 and the base 1.

Specifically, the number of the clamping holes 1013 on the base 1 is four, and correspondingly, the number of the elastic buttons 401 on the bottom cover 4 is also four.

In one embodiment, the bottom cover 4 is provided with a support rib 402, and the support rib 402 abuts against the fixing portion 301.

In this embodiment, the supporting ribs 402 are supported below the fixing portion 301 to further limit the weight sensor 3, and prevent the weight sensor 3 from shaking.

As shown in fig. 12 in particular, the plurality of ribs 402 are provided and are uniformly distributed in the circumferential direction.

In one embodiment, the bottom cover 4 is provided with a mounting through hole 403, the bracket 2 passes through the mounting through hole 403, and a supporting leg 5 is mounted at one end of the bracket 2 away from the load cell 3, and the supporting leg 5 extends out of the bracket 2.

In this embodiment, the support feet 5 are provided to provide stable support for the whole rice cooker.

Specifically, the whole electric cooker is provided with four supporting feet 5 in total, and each supporting foot 5 is installed at one end of the bracket 2 far away from the weighing sensor 3.

In one embodiment, the bracket 2 is provided with a connecting hole 203, and the support leg 5 is clamped in the connecting hole 203 from the end of the connecting hole 203 far away from the weighing sensor 3.

In this embodiment, the support leg 5 is clamped in the connecting hole 203 from the end of the connecting hole 203 far away from the load cell 3, and the connection mode of the two is simple and convenient.

Specifically, in one embodiment, the connection hole 203 communicates with the recess 2012.

Specifically as shown in fig. 4, the supporting leg 5 includes a first columnar portion 501 and a second columnar portion 502, the diameter of the first columnar portion 501 is larger than the diameter of the second columnar portion 502, a tapered engaging portion 503 is provided on the outer side of the second columnar portion 502, the outer diameter of the tapered engaging portion 503 gradually increases from one end far away from the first columnar portion 501 to one end near the first columnar portion 501, an annular protrusion 2031 is provided on an inner wall of the connecting hole 203, an inclined guiding portion 2032 is provided on the annular protrusion 2031, the inclined guiding portion 2032 can guide the tapered engaging portion 503 to pass through the annular protrusion 2031, after the supporting leg 5 is installed in place, the tapered engaging portion 503 abuts against one end of the annular protrusion 2031, and the first columnar portion 501 abuts against the other end of the annular protrusion 2031.

It should be noted that the supporting leg 5 may be made of plastic, so that it has a certain deformability.

The base component of the electrical equipment provided by the embodiment is installed as follows:

the supporting leg 5 is inserted into the bracket 2, and the supporting leg 5 is clamped in the connecting hole 203 of the bracket 2.

The stress part 3022 of the weighing sensor 3 is fixed in the mounting groove 2011 through the screw 6, a groove 2012 is formed between the two mounting grooves 2011 to prevent the bracket 2 from abutting against the strain gauge 7, the strain gauge 7 is positioned in the groove 2012 after the weighing sensor 3 is mounted in place, and the distance A between the bottom of the groove 2012 and the cantilever weighing part 3021 is preferably 1mm-3mm.

The holding chamber 101 of base 1 is provided with the fixed muscle 1011 in, and fixed muscle 1011 is equipped with interference muscle 1012, detains weighing sensor 3's peripheral frame in fixed muscle 1011, interference muscle 1012 and peripheral frame interference fit, interference magnitude are preferably 0.1mm-0.5mm, prevent weighing sensor 3 not hard up, improve the detection precision of components and parts, improve the stability of product.

The holding cavity 101 of the base 1 is internally provided with 4 clamping holes 1013, the bottom cover 4 is provided with 4 elastic buckles 401, and finally the bottom cover 4 is buckled on the holding cavity 101 of the base 1, the bottom cover 4 is also provided with supporting ribs 402, and the supporting ribs 402 prop against the peripheral frame, so that the weighing sensor 3 can be prevented from shaking.

After the installation, the bracket 2 can be moved up and down. Due to the weight of the fuselage, the receiving space 101 of the base 1 will sink with the outer rim of the load cell 3. The bracket 2 moves slightly upward with respect to the base 1, and the force receiving portion 3022 of the load cell 3 is pushed upward by the bracket 2. The weight of the machine body is different, the deformation amount of the cantilever weighing part 3021 is different, and the deformation amount of the strain gauge 7 is also different, so that the weight of water added during cooking is calculated.

The support 2 is further provided with ribs 202, a space B is reserved between the weighing sensor 3 and the ribs 202, the space B is preferably 0.1-1mm, when the load in the inner pot is too heavy, the deformation of the cantilever weighing part 3021 is larger than the space value, and at the moment, the ribs 202 of the support 2 abut against the peripheral frame of the weighing sensor 3 to prevent the cantilever weighing part 3021 of the weighing sensor 3 from being deformed too much and broken.

According to a third aspect of the embodiments of the present invention, there is also provided an electrical apparatus, including the base assembly described above.

When food is filled in the inner pot of the electrical equipment, the base 1 moves downwards relative to the support 2, the support 2 moves upwards relative to the base 1, the support 2 drives the stress part 3022 to jack up upwards, the cantilever weighing part 302 is deformed, the strain gauge 7 deforms accordingly, the weight of the inner pot is different, the deformation of the cantilever weighing part 302 is different, the deformation of the strain gauge 7 is different, the resistance in the strain gauge 7 is changed, and the controller converts the resistance into a force value according to the change of the resistance value of the strain gauge 7, so that the weight of water added during cooking can be calculated. The support 2 is used for driving the cantilever weighing part 3021 to deform, has an overload protection function, is simple in structure, has a small number of parts, and is beneficial to improving the assembly efficiency. By installing the weighing sensor 3 on the support 2, the support 2 and the base 1 are of a split structure, and the influence of the deformation of the base 1 on the precision of the weighing sensor 3 due to the deformation of the injection molding part can be avoided.

Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the invention as defined by the appended claims.

Claims (12)

1. A bracket for mounting a load cell (3), the load cell (3) comprising a fixed part (301), a cantilever weighing part (3021) and a stressed part (3022), the fixed part (301) being adapted to be fixedly arranged, the cantilever weighing part (3021) being adapted to mount a strain gauge (7);

the bracket (2) is suitable for being connected with the stress part (3022) and is used for driving the stress part (3022) to move up and down so as to deform the cantilever weighing part (3021);

convex ribs (202) are arranged on two sides of the support (2), and the convex ribs (202) are located below the fixing portions (301).

2. The bracket according to claim 1, characterized in that the distance between the bead (202) and the fixing portion (301) is B,0.1mm ∈b ∈1mm.

3. The bracket according to claim 1, characterized in that the center of the bracket is provided with a groove (2012);

the stress parts (3022) are symmetrically arranged on two sides of the cantilever weighing part (3021), the cantilever weighing part (3021) is suitable for being located in the groove (2012), and the strain gauge (7) is suitable for being in clearance with the groove bottom of the groove (2012).

4. A bracket according to claim 3, characterized in that the distance between the cantilever weighing part (3021) and the bottom of the recess (2012) is a,1 mm.ltoreq.a.ltoreq.3 mm.

5. A bracket according to claim 3, characterized in that the bracket (2) is further provided with mounting grooves (2011), the mounting grooves (2011) are located on both sides of the groove (2012) and the bottom of the mounting grooves (2011) is higher than the bottom of the groove (2012), and the force receiving part (3022) is adapted to be fixedly arranged in the mounting grooves (2011).

6. A base assembly for an electrical device, comprising:

a base (1);

the stent (2) of any one of claims 1 to 5;

the weighing sensor (3) comprises a fixing part (301), a cantilever weighing part (3021) and a stress part (3022), wherein the stress part (3022) is fixedly arranged on the bracket (2), and the cantilever weighing part (3021) is provided with a strain gauge;

the bottom cover (4) is fixedly connected with the base (1), the bottom cover (4) is matched with the base (1) to fix the fixing part (301) on the base (1), and the support (2) is suitable for driving the stress part to move up and down relative to the base (1) and the bottom cover (4) so as to enable the cantilever weighing part (3021) to deform.

7. The base assembly of electrical equipment according to claim 6, wherein the base (1) is provided with a containing cavity (101), a fixing rib (1011) is arranged in the containing cavity (101), the fixing rib (1011) is located around the fixing portion (301), the fixing rib (1011) is provided with a matching rib, and the matching rib is in interference fit with the fixing portion (301).

8. The base assembly of an electrical device according to claim 6, wherein the bottom cover (4) is connected to the base (1) by means of a snap-fit connection.

9. The base assembly of an electrical device according to claim 6, wherein the bottom cover (4) is provided with a support rib (402), the support rib (402) abutting the fixing portion (301).

10. The base assembly of an electrical device according to claim 6, wherein the bottom cover (4) is provided with a mounting through hole (403), the bracket (2) passes through the mounting through hole (403), a supporting foot (5) is mounted at one end of the bracket (2) away from the weighing sensor (3), and the supporting foot (5) extends out of the bracket (2).

11. The base assembly of an electrical device according to claim 10, wherein the bracket (2) is provided with a connecting hole (203), and the support leg (5) is clamped in the connecting hole (203) from an end of the connecting hole (203) away from the weighing sensor (3).

12. An electrical device comprising the base assembly of any one of claims 6 to 11.