CN210842923U - Circuit board box mounting structure of dish washer base and dish washer thereof - Google Patents

Abstract

The utility model relates to the technical field of dish-washing machines, and provides a circuit board box mounting structure of a dish-washing machine base and a dish-washing machine thereof, which comprises the dish-washing machine base and a circuit board box arranged in the base, wherein a circuit board is arranged in the circuit board box, the base is a frame body with an opening at the bottom, the side wall of the base is provided with a fixed grid, and a chute is arranged on the fixed grid; the circuit board box is provided with a connecting edge extending outwards, the connecting edge is provided with a clasp and an opening for accommodating the clasp, the circuit board box is arranged in the chute in a sliding mode through the connecting edge, and the clasp is fastened and fixed with the fixed grid; the clasp is connected with the inner wall of the opening, and gaps between the clasp and the inner wall of the opening are formed at other positions except the connection position so as to allow a release piece to be inserted and enable the clasp to be separated from the fixed grid. The utility model discloses a circuit board box mounting structure solves current circuit board box mounting structure and dismantles inconvenient problem, improves the mounting structure of circuit board box, lets circuit board box easy to assemble or dismantle, improves the maintenance efficiency.

Description

Circuit board box mounting structure of dish washer base and dish washer thereof

Technical Field

The utility model relates to a dish washer technical field refers in particular to a circuit board box mounting structure of dish washer base and dish washer thereof.

Background

With the increasing development of science and technology and the improvement of living standard, especially with the rapid development of household appliance technology, a special dish washing device is provided for the aspect of tableware cleaning. A multifunctional dish washing machine generally has the functions of spraying, drying, sterilizing and the like, a user only needs to put tableware such as bowls and chopsticks into the dish washing machine, the dish washing machine can automatically complete a series of cleaning works according to the setting of the user, the use is convenient and full-automatic, the user operation is effectively reduced, and therefore the dish washing machine is more and more popular with the majority of users.

The dish washer in the market generally includes washing chamber and base at present, is equipped with components such as washing motor, water pump and heating device in the base, still includes the circuit board of the aforementioned component of electric connection, and this circuit board outside generally sets up the insulating circuit board box that has the leakproofness for the protection. To the mode of setting of circuit board box, in order to make things convenient for installation circuit or dismantlement maintenance, generally adopt the formula of keeping flat to set up in the base bottom, nevertheless because components such as above-mentioned motor, water pump and heating device have been set up in the base, have occupied most space, in addition the circuit board box of the formula of keeping flat arranges the bottom in, and the heat dissipation or the isolation space that the cooperation was kept make base height increase, volume increase. If the circuit board box is laid flat at the bottom, the circuit board box is also easily affected by the operation of peripheral components, such as external force action of temperature, pressure, even water leakage, etc., the circuit board box is affected from the outside of the circuit board box, and the circuit board in the circuit board box is easily subjected to the situations of electric leakage, burning out, etc. In particular, the prior art dish washer is not suitable for arranging the circuit board box at the bottom of the base because the overflow device for leaking water is arranged at the bottom of the base for solving the problem of overflow.

In order to solve the above problems, the prior art employs a circuit board box fixed on the side wall of the base in a vertical manner. Specifically, fasteners are generally used to fix the circuit board box on the bracket at the side of the base, so as to reduce the occupied space and prevent the circuit board box from being damaged by water leakage when the circuit board box is arranged at the bottom of the base. However, the circuit board box arranged on the side wall of the base is not favorable for disassembly and maintenance, and the shell of the whole dish-washing machine, especially the side shell and the cover plate at the bottom of the base are required to be disassembled to disassemble the circuit board box, so that the operation is very inconvenient, and the maintenance efficiency of the equipment is seriously affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circuit board box mounting structure of dish washer base and dish washer thereof solves the inconvenient technical problem of circuit board box mounting structure dismantlement of prior art, improves the mounting structure of circuit board box, lets circuit board box easy to assemble or dismantle, improves the maintenance efficiency.

In order to realize the purpose, the utility model discloses a technical scheme is:

a circuit board box mounting structure of a dish washer base comprises the dish washer base and a circuit board box arranged in the base, wherein a circuit board is arranged in the circuit board box, the base is a frame body with an opening at the bottom, a fixed grid is arranged on the side wall of the base, and a sliding groove is formed in the fixed grid; the circuit board box is provided with a connecting edge extending outwards, the connecting edge is provided with a clasp and an opening for accommodating the clasp, the circuit board box is arranged in the chute in a sliding mode through the connecting edge, and the clasp is fastened and fixed with the fixed grid; the clasp is connected with the inner wall of the opening, and gaps between the clasp and the inner wall of the opening are formed at other positions except the joint so that a release piece can be inserted into the gaps and the clasp can be separated from the fixed grid.

Compared with the prior art, the circuit board box mounting structure of the dish washer base of the utility model is provided with the fixed grids on the side wall of the base, and the fixed grids are provided with the chutes; the circuit board box is matched with the circuit board box and is provided with a connecting edge extending outwards, and the connecting edge is provided with a clasp and an opening for accommodating the clasp. When the circuit board box is installed, the circuit board box can slide into the sliding groove from the bottom opening of the base through the matching of the connecting edge and the sliding groove, so that the clasp on the connecting edge is fastened and fixed with the fixed grid, and the circuit board box is installed and fixed. When the circuit board box is disassembled, because the clasp is connected with the inner wall of the opening, and other parts except the joint are arranged with the gap of the inner wall of the opening, under the premise that the outer shell of the side part of the dishwasher base is not disassembled, the release piece can be inserted into the gap, the clasp is lifted from the fixed grid, the buckling state of the clasp and the fixed grid is released, and the circuit board box is disassembled from the opening at the bottom of the base along the sliding groove. Therefore, the utility model discloses a circuit board box mounting structure, though the fixed mode of setting at the base lateral part, nevertheless need not dismantle the peripheral shell of base, also need not set up the fastener and do not fix, just only can easily be right through the bottom opening of base circuit board box is done the installation or is dismantled the operation, improves the maintenance efficiency, can reduce circuit board box's occupation space effectively again, reduces the risk that receives external force to influence the damage circuit board.

The fixing grids are not only used for being fixedly connected with the circuit board box, and do not need to be provided with fasteners for fixing, but also play a role in effective heat dissipation, and discharge the heat inside the base and the circuit board box fixed on the fixing grids, so that the internal structure of the base is effectively utilized, a multi-purpose is formed, and the operation efficiency of the whole machine is further improved.

The structure of the circuit board box is further improved, the opening on the connecting edge is a rectangular long hole, and the opening is matched with the lattice site of the fixed grid; the clasp comprises a connecting part and a hook part, and the connecting part is connected with the inner wall of the short edge at one end of the opening and extends towards the short edge at the other end of the opening; the hook part is provided with an inclined plane which inclines downwards from the gap. The connecting part is connected in the opening to form certain mobility, the hook part is matched with the inclined plane of the hook part, the hook can be inserted into the inclined plane from the gap through the removing piece, the hook is separated from the fixed grid, and therefore the buckling state of the hook and the fixed grid is removed.

Furthermore, the circuit board box is a rectangular box body and comprises a base plate and a box cover, and the two symmetrical sides of the base plate are respectively provided with the connecting edges; the sliding groove is matched with the connecting edge in position, is arranged on the fixed grid, and limits the mounting position of the circuit board box from two sides. The sliding groove can be preferably an L-shaped groove body, so that the sliding groove not only plays a role in guiding the circuit board box to slide in, but also plays a role in limiting the installation position of the circuit board box on the fixed grid on the side wall of the base and positioning the circuit board box.

Further, the chassis comprises a bottom surface and a surrounding plate connected with four edges of the bottom surface, a surrounding edge is arranged on the surrounding plate, and a convex ring extending outwards is arranged at the bottom of the surrounding edge so that the box cover is sleeved on the chassis; the bottom surface back with fixed grid offsets, the bounding wall includes the curb plate of front bezel, backplate and left and right sides, the backplate is located the base inside, the curb plate is equipped with outward the connection is followed. On one hand, the surrounding edge is arranged on the surrounding plate, and the box cover can be sleeved and covered on the chassis by matching the protruding ring; the surrounding edge can also play an effective waterproof role to block external water from permeating into the circuit board box. On the other hand, the circuit board box formed by the structure has high compactness and good sealing performance, and effectively protects the circuit board inside.

Still further, the backplate highly be higher than the front bezel, be equipped with the first bevel edge that leads that sets up to backplate top slant on the curb plate, the lid both sides be equipped with first bevel edge that leads counterpoint complex second bevel edge that leads, second bevel edge that leads with the inclined plane of first bevel edge that leads coincide each other. The cover can slide on the chassis to realize sliding cover installation, and particularly, when the circuit board box is fixed on the side wall of the base in a vertical arrangement mode, the position of the circuit board box is easily influenced by other components in the base, and the cover closing operation of the cover can not be completed in a direct cover closing mode, so that the cover can be closed in a sliding cover mode.

On the basis, the first guiding bevel edge is provided with a check groove, a buckling strip matched with the position of the check groove is arranged in the second guiding bevel edge, and the buckling strip is matched with the check groove in a buckling mode to limit the box cover to slide back and fall. For the sliding cover structure, the circuit board box is fixed on the side wall of the base in a vertical arrangement mode, and the box cover is easy to slide back and fall off under the action of gravity. To this technical problem, first direction hypotenuse on the chassis curb plate sets up the check groove to set up the profile in the second direction hypotenuse of lid, through the lock joint cooperation in profile and check groove, limit the back slip of lid effectively, and then improve the lid and close the stability on chassis, prevent to uncap beyond the circuit board box, cause the internal circuit board to expose easy impaired.

The structure of the circuit board box is further improved, the surrounding edge of the front plate is provided with a buckling hole, and the box cover is internally provided with a buckling block matched with the buckling hole in position.

On the basis, the back plate is provided with the insertion holes, the edges of the box cover and the back plate in a splicing mode are provided with the insertion strips, and the insertion strips are matched with the insertion holes in position.

Through the matching of the front plate and the back plate structure on the chassis and the box cover, when the box cover of the circuit board box is covered in a sliding cover mode, the circuit board box is inserted from the front plate of the chassis, slides towards the direction of the back plate along the first guiding bevel edge on the side plate, the inserting strips are inserted into the inserting holes, and meanwhile, the buckling blocks are fixedly buckled with the buckling holes in the front plate in a buckling mode to complete the covering operation. The circuit board box is vertically arranged and fixed on the side wall of the base, a side shell of the dish washing machine does not need to be opened, and circuit connection of the circuit board is completed only from an opening at the bottom of the base. Moreover, the circuit board can be fixed and then subjected to line connection operation, so that the situations of dislocation, disconnection and the like caused by displacement after line connection are avoided, repeated operation is reduced, and the production efficiency is effectively improved.

Furthermore, reinforcing ribs are arranged outside the circuit board box, and are arranged on the surface of the circuit board box in a grid shape; the chassis is internally provided with a support rib used for supporting the circuit board from the bottom, and the coaming of the chassis is internally provided with a buckle edge for fixing the circuit board. The latticed reinforcing ribs outside the circuit board box effectively improve the hardness of the whole circuit board box, form a hard protective shell and effectively prevent the circuit board in the circuit board box from being damaged by external force. The support ribs and the buckling edges in the circuit board box are matched, so that the circuit board is fixed and supported in the circuit board box, a gap is formed between the bottom of the circuit board and the bottom surface of the chassis, the space for air circulation flow is increased, and the heat dissipation effect is improved.

The utility model also provides a dish washer, which comprises a base, the circuit board box mounting structure of the utility model is arranged in the base, the base is a frame body with an opening at the bottom, the opening at the bottom is provided with a cover plate, the side wall of the base is provided with the fixed grid, and the fixed grid is externally provided with a shell of the dish washer; the circuit board box is fixed on the fixed grid, through holes are formed in two sides of the circuit board box, circuit boards fixed in the circuit board box are led out, and the circuit boards are connected with other components in the base.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

FIG. 1 is a structural view of a base of a dishwasher according to the present invention;

FIG. 2 is a structural view of the base structure of the dishwasher of the present invention without a circuit board box;

FIG. 3 is a cross-sectional view AA in FIG. 1;

FIG. 4 is an enlarged view of the portion B of FIG. 3;

FIG. 5 is a structural view of the base structure of the dishwasher of the present invention with a circuit board box installed;

FIG. 6 is an enlarged view of the structure of the portion C of FIG. 5;

fig. 7 is a structural view of the circuit board box of the present invention;

fig. 8 is another angle structural view of the circuit board box of the present invention;

fig. 9 is a structural view of a chassis of the circuit board box of the present invention;

fig. 10 is a structural view of the cover of the circuit board box of the present invention;

fig. 11 is another angle structural view of the cover of the circuit board box of the present invention;

fig. 12 is a structural view of the circuit board mounted on the chassis of the circuit board box according to the present invention.

Reference numerals: 100. a base; 200. a circuit board box; 300. a circuit board; 1. fixing the grid; 11. a chute; 2. a connecting edge; 20. a gap; 21. a clasp; 211. a connecting portion; 212. a hook portion; 213. a bevel; 22. opening a hole; 3. a through hole; 4. a chassis; 41. a bottom surface; 42. enclosing plates; 421. a front plate; 422. a back plate; 4221. a jack; 423. a side plate; 43. surrounding edges; 431. a first hypotenuse; 4310. a check groove; 432. buckling holes; 44. a convex ring; 45. supporting ribs; 46. buckling edges; 5. a box cover; 51. a second hypotenuse; 510. buckling strips; 52. buckling blocks; 53. and (5) cutting.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 6 and 12, an embodiment of the present invention provides a dishwasher, including a base 100, the base 100 is provided with a circuit board box mounting structure, the circuit board box mounting structure includes a circuit board box 200 disposed in the base 100, a circuit board 300 is disposed in the circuit board box 200, the base 100 is a bottom opening frame body, a cover plate can be covered on the bottom opening, a side wall of the base 100 is provided with a fixed grid 1, the fixed grid 1 can be provided with an outer shell of the dishwasher, and the fixed grid 1 is provided with a chute 11. The circuit board box 200 is provided with a connecting edge 2 extending outwards, and the connecting edge 2 is provided with a clasp 21 and an opening 22 for accommodating the clasp 21. The circuit board box 200 is slidably disposed in the sliding groove 11 through the connecting edge 2, so that the clasp 21 is fastened and fixed with the fixing grid 1. The hook 21 is connected to the inner wall of the opening 22 along the connecting edge 2, and a gap 20 is formed between the hook 21 and the inner wall of the opening 22 at a position other than the connecting position, so that a release member can be inserted into the gap 20 and the hook 21 can be separated from the fixed grid 1.

Preferably, as shown in fig. 7, through holes 3 are further provided at two sides of the circuit board box 200, and the through holes 3 are used for leading out the circuit board 300 fixed in the circuit board box 200 and connecting with other components inside the base 100.

The circuit board box mounting structure of the utility model improves the structure of mounting the circuit board box 200 at the side part of the base 100 in the prior art, the side wall of the base 100 is provided with the fixed grid 1, and the fixed grid 1 is provided with the chute 11; the circuit board box 200 is provided with a connecting edge 2 matched with the circuit board box, and the connecting edge 2 is provided with a clasp 21 and an opening 22 for accommodating the clasp 21, so that the circuit board box 200 and the base 100 are more convenient to mount and dismount.

When the circuit board box 200 is installed, the circuit board box 200 can slide into the chute 11 from the bottom opening of the base 100 through the matching of the connecting edge 2 and the chute 11, so that the clasp 21 on the connecting edge 2 is buckled with the fixed grid 1, and the circuit board box is fixed.

When dismantling circuit board box 200, because clasp 21 with trompil 22 inner wall connection to other positions outside the junction be equipped with the clearance 20 of trompil 22 inner wall, under the outer shell prerequisite of not dismantling dishwasher base 100 lateral part, usable this clearance 20 inserts the release piece, will clasp 21 is picked up from fixed grid 1 to relieve clasp 21 and fixed grid 1's lock joint state, follow 11 roll-offs of spout with circuit board box 200 again, dismantle from base 100 bottom opening, accomplish the dismantlement operation.

The utility model discloses a circuit board box mounting structure, though the fixed mode of setting at the base 100 lateral part, nevertheless need not dismantle the peripheral shell of base 100, also need not set up the fastener and do fixedly, just only can easily be right from the bottom opening of base 100 circuit board box 200 is done the installation or is dismantled the operation, improves the maintenance efficiency, can reduce circuit board box 200's occupation space effectively again, reduces the risk that receives external force to influence damage circuit board 300. The fixing grid 1 is not only used for being fixedly connected with the circuit board box 200, and does not need to be provided with a fastener for fixing, but also has an effective heat dissipation effect, so that heat in the base 100 and the circuit board box 200 fixed on the fixing grid 1 is discharged, the internal structure of the base 100 is effectively utilized, a multi-purpose is formed, and the operation efficiency of the whole machine is further improved.

The circuit board box 200 is optimized in structure, as shown in fig. 3 to 4 and 7 to 9, the opening 22 on the connecting edge 2 is a rectangular long hole, and the opening 22 is matched with the grid of the fixing grid 1. The clasp 21 comprises a connecting part 211 and a hook part 212, wherein the connecting part 211 is connected with the inner wall of the short side at one end of the rectangular long-hole-shaped opening 22 and extends towards the short side at the other end of the opening 22; the hook 212 is provided with a slope 213 inclined downward from the gap 20. The above arrangement allows the connection portion 211 to be connected to the opening 22 to have a certain mobility, and the connection portion is provided to be engaged with the inclined surface 213 of the hook portion 212, so that the release member can be inserted into the inclined surface 213 from the gap 20 to separate the hook 212 from the fixed grid 1, thereby releasing the fastening state between the hook 21 and the fixed grid 1.

As shown in fig. 2, 7 to 8, the circuit board box 200 may preferably be a rectangular box body, and includes a bottom plate 4 and a box cover 5, where the two symmetrical sides of the bottom plate 4 are respectively provided with the connecting edges 2. The sliding groove 11 is matched with the connecting edge 2 in position, is arranged on the fixed grid 1, and limits the installation position of the circuit board box 200 from two sides. The sliding groove 11 may preferably be an L-shaped groove, which serves both as a guide for sliding the circuit board box 200 in and also serves to define the mounting position of the circuit board box 200 on the fixing grid 1 of the side wall of the base 100, and to position the circuit board box 200.

As shown in fig. 9, the base plate 4 includes a bottom surface 41 and a surrounding plate 42 connected to four sides of the bottom surface 41, the surrounding plate 42 is provided with a surrounding edge 43, and a protruding ring 44 extending outward is provided at the bottom of the surrounding edge 43, so that the box cover 5 can be sleeved on the base plate 4. The surrounding edge 43 can play an effective waterproof role to block external water from permeating into the circuit board box 200. The back of the bottom surface 41 abuts against the fixed grid 1, the enclosing plate 42 comprises a front plate 421, a back plate 422 and side plates 423 at the left and right sides, the back plate 422 is located inside the base 100, and the connecting edges 2 are arranged outside the side plates 423. The circuit board box 200 formed by the structure has high compactness and good sealing performance, and effectively protects the circuit board 300 inside.

Because the utility model discloses a circuit board box 200 is with vertical setting, fixes on the fixed grid 1 of base 100 lateral wall, the position of circuit board box 200 is influenced by other members in the base 100 easily, and the lid that can't close 5 is accomplished through the mode that the direct lid closed closes the operation. Therefore, the circuit connection and adjustment of the circuit board 300 to other components in the base 100 can be completed only before the circuit board box 200 is mounted, and then the circuit board box 200 is mounted on the fixing grid 1 of the side wall of the base 100. However, in this operation process, the circuit board 300, which is originally installed, is easily subjected to line connection and adjustment, and is easily subjected to dislocation or disconnection, so that repeated operation is required, and the installation efficiency is affected.

To the above technical problem, it is right the utility model discloses a circuit board box 200 structure is optimized. As shown in fig. 9 to 12, the back plate 422 is higher than the front plate 421, the side plate 423 is provided with a first oblique guiding edge 431 obliquely arranged toward the top end of the back plate 422, two sides of the box cover 5 are provided with second oblique guiding edges 51 aligned with the first oblique guiding edges 431, and the second oblique guiding edges 51 are matched with the inclined surfaces of the first oblique guiding edges 431. On the basis, the surrounding edge 43 of the front plate 421 is provided with a buckle hole 432, and the back plate 422 is provided with a jack 4221; the box cover 5 is matched with the box cover, a buckling block 52 matched with the buckling hole 432 in position is arranged, an inserting strip 53 is arranged on the edge spliced with the back plate 422, and the inserting strip 53 is matched with the inserting hole 4221 in position.

Through the circuit board box 200 formed by the structure, the box cover 5 can slide on the chassis 4 from the front board 421 to the back board 422, and the covering operation is completed. In the production and installation process, the circuit board 300 is generally fixed in the chassis 4 of the circuit board box 200, and then the chassis 4 is fixed on the fixing grid 1 on the side wall of the base 100; at this time, the circuit board 300 and other components in the base 100 can be connected and adjusted by the circuit under the state that the box cover 5 is not covered; after the circuit connection is completed, the box cover 5 is inserted from the front plate 421 of the chassis 4, and slides along the first guiding inclined edge 431 on the side plate 423 toward the back plate 422, so that the insertion strip 53 and the insertion hole 4221 are inserted into each other, and the buckling block 52 and the buckling hole 432 on the front plate 421 are buckled and fixed, and finally, the covering operation is completed.

Above-mentioned circuit board box 200 structure of optimizing for the lid 5 of circuit board box 200 can be accomplished the lid by the mode of sliding closure and close the operation, is favorable to the utility model discloses a circuit board box 200 fixes under the state of base 100 lateral wall with vertical setting, need not to open the lateral part shell of dish washer, only accomplishes the line connection of circuit board 300 from base 100 bottom opening. Moreover, because the utility model discloses a circuit board box 200 structure for circuit board 300 can carry out the line connection operation again after accomplishing fixedly, thereby avoids shifting behind the line connection, and the dislocation that causes or situations such as disconnected take place, reduces repetitive operation, improves production efficiency effectively.

The first guiding bevel edge 431 and the second guiding bevel edge 51 are matched to play a guiding role, and the inserting strip 53 and the inserting hole 4221 are automatically aligned to complete inserting connection at the same time, so that an effective fool-proof function is achieved.

On the basis, although the circuit board box 200 can solve the problem of circuit installation of the circuit board 300 by means of a sliding cover, the circuit board box 200 of the sliding cover structure is vertically arranged and fixed on the side wall of the base 100, and the box cover 5 is easy to slide back and fall off under the action of gravity. To this technical problem, it is right the utility model discloses a circuit board box 200 structure is further optimized, as shown in fig. 9 to 10, 12, be equipped with check groove 4310 on the first guiding hypotenuse 431, be equipped with in the second guiding hypotenuse 51 with check groove 4310 position complex profile 510, profile 510 and check groove 4310 lock joint cooperation limit the backsliding of lid 5 drops, and then improves lid 5 lid and closes the stability on chassis 4, prevents effectively that circuit board box 200 from accidentally uncapping, leads to inside circuit board 300 to expose easy impaired.

It is further right the circuit board box 200 structure is optimized, as shown in fig. 7 to 8, 11, still be equipped with the strengthening rib 6 outside the circuit board box 200, the strengthening rib 6 is latticed and arranges in the circuit board box 200 surface, and then improves the hardness of whole circuit board box 200, forms hard protective housing, blocks effectively that external force action from causing the damage to circuit board 300 in the circuit board box 200.

Preferably, as shown in fig. 9 and 12, a supporting rib 45 for supporting the circuit board 300 from the bottom is provided in the chassis 4 of the circuit board box 200, and a fastening edge 46 for fixing the circuit board 300 is provided in the enclosing plate 42 of the chassis 4, so that the circuit board 300 is fixed under the restriction of the fastening edge 46 and is supported under the action of the supporting rib 45, so that a gap is formed between the bottom of the circuit board 300 and the bottom surface 41 of the chassis 4, thereby increasing the space for the air to flow circularly and improving the heat dissipation effect.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A circuit board box mounting structure of a dish washer base comprises the dish washer base and a circuit board box arranged in the base, wherein a circuit board is arranged in the circuit board box, and the base is a frame body with an opening at the bottom; the circuit board box is provided with a connecting edge extending outwards, the connecting edge is provided with a clasp and an opening for accommodating the clasp, the circuit board box is arranged in the chute in a sliding mode through the connecting edge, and the clasp is fastened and fixed with the fixed grid; the clasp is connected with the inner wall of the opening, and gaps between the clasp and the inner wall of the opening are formed at other positions except the joint so that a release piece can be inserted into the gaps and the clasp can be separated from the fixed grid.

2. The circuit board box mounting structure of a dishwasher base according to claim 1, wherein the opening on the connecting edge is a rectangular long hole, and the opening is matched with the lattice of the fixing grid; the clasp comprises a connecting part and a hook part, and the connecting part is connected with the inner wall of the short edge at one end of the opening and extends towards the short edge at the other end of the opening; the hook part is provided with an inclined plane which inclines downwards from the gap.

3. The circuit board box mounting structure of a dishwasher base according to claim 2, wherein the circuit board box is a rectangular box body comprising a chassis and a box cover, wherein the connecting edges are respectively arranged on two symmetrical sides of the chassis; the sliding groove is matched with the connecting edge in position, is arranged on the fixed grid, and limits the mounting position of the circuit board box from two sides.

4. The circuit board box mounting structure of a dishwasher base as claimed in claim 3, wherein the chassis comprises a bottom surface and a surrounding plate connecting four sides of the bottom surface, the surrounding plate is provided with a surrounding edge, and the bottom of the surrounding edge is provided with a convex ring extending outwards so that the box cover is sleeved on the chassis; the bottom surface back with fixed grid offsets, the bounding wall includes the curb plate of front bezel, backplate and left and right sides, the backplate is located the base inside, the curb plate is equipped with outward the connection is followed.

5. The circuit board box mounting structure of a dishwasher base as claimed in claim 4, wherein the back plate is higher than the front plate, the side plate is provided with a first guiding bevel edge obliquely arranged toward the top end of the back plate, the two sides of the box cover are provided with second guiding bevel edges aligned and matched with the first guiding bevel edges, and the second guiding bevel edges are matched with the inclined surfaces of the first guiding bevel edges.

6. The circuit board box mounting structure of a dishwasher base as claimed in claim 5, wherein the first guiding oblique edge is provided with a check groove, the second guiding oblique edge is provided with a buckle strip matched with the check groove in position, and the buckle strip is matched with the check groove in a buckling manner to limit the box cover from sliding back and falling.

7. The circuit board box mounting structure of a dishwasher base as claimed in claim 4, wherein the front plate is provided with a fastening hole on its peripheral edge, and the lid is provided with a fastening block in a position fitting the fastening hole.

8. The circuit board box mounting structure of a dishwasher base according to claim 4, wherein the back plate is provided with a jack, and the edge of the box cover spliced with the back plate is provided with a cutting, the cutting being matched with the jack in position.

9. The circuit board box mounting structure of a dishwasher base according to claim 4, wherein the circuit board box is further provided with reinforcing ribs, and the reinforcing ribs are arranged on the surface of the circuit board box in a grid shape; the chassis is internally provided with a support rib used for supporting the circuit board from the bottom, and the coaming of the chassis is internally provided with a buckle edge for fixing the circuit board.

10. A dishwasher, comprising a base, wherein the circuit board box mounting structure of any one of claims 1 to 9 is arranged in the base, the base is a frame body with an opening at the bottom, the opening at the bottom is provided with a cover plate, the side wall of the base is provided with the fixing grid, and the fixing grid is externally provided with a shell of the dishwasher; the circuit board box is fixed on the fixed grid, through holes are formed in two sides of the circuit board box, circuit boards fixed in the circuit board box are led out, and the circuit boards are connected with other components in the base.

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