CN117847890A - Refrigerating apparatus - Google Patents

Abstract

The invention provides refrigeration equipment, which comprises an inner container defining a refrigeration compartment with an opening at the front side, a surface light source component fixed at the top of the refrigeration compartment and a plurality of frames for fixing the surface light source component around the surface light source component, wherein each frame is provided with a first accommodating part for accommodating the light bar and a second accommodating part for accommodating and fixing the edge part of the light guide plate, and the first accommodating part is far away from the center of the light guide plate compared with the second accommodating part. The refrigeration equipment can provide soft lighting effect and avoid generating dazzling light.

Description

Refrigerating apparatus

Technical Field

The present invention relates to a refrigeration apparatus.

Background

In traditional embedded refrigeration plant, refrigeration plant's illumination mainly fixes the LED spot lamp at inner bag top, and the outside of LED spot lamp is installed and is had ya keli or transparent ABS material's lamp shade of dull polish effect in the surface, and the inside of refrigerator is illuminated through the diffuse reflection of light, when refrigeration plant's door was opened, for the user takes and provides convenience. However, the form of providing illumination inside the refrigeration equipment can see obvious lamp points, so that glaring strong light is formed, and uncomfortable use experience of the refrigeration equipment is brought to users.

In view of this, there is a need for improvements to existing refrigeration equipment to address the above-described problems.

Disclosure of Invention

The invention aims to provide refrigeration equipment with a soft lighting effect.

In order to achieve the above object, the present invention provides a refrigeration device, which includes a liner defining a refrigeration compartment with an opening at a front side, a surface light source assembly fixed at a top of the refrigeration compartment, and a plurality of frames around the surface light source assembly, wherein the surface light source assembly includes a light bar and a light guide plate, each frame has a first accommodating portion for accommodating the light bar and a second accommodating portion for accommodating and fixing an edge portion of the light guide plate, and the first accommodating portion is disposed farther from a center of the light guide plate than the second accommodating portion.

As a further improvement of the invention, the first accommodating part comprises a partition wall and a mounting wall connected with the partition wall, the light bar is attached to the lower surface of the mounting wall, the partition wall extends upwards from the top surface of the second accommodating part to form, and the mounting wall is perpendicular to the partition wall.

As a further improvement of the present invention, the first receiving portion further has a holding wall bent downward from an outer end edge of the mounting wall, the surface light source assembly further has a lamp cover covering the lamp bar and the light guide plate inside thereof, the lamp cover has a flat plate portion disposed parallel to the light guide plate and a plurality of side walls standing on the flat plate portion, each of the side walls has a protruding wall protruding upward into the first receiving portion and being snapped with the holding wall.

As a further improvement of the present invention, the height of the holding wall extending downward from the mounting wall is smaller than the height of the partition wall extending downward from the mounting wall.

As a further improvement of the present invention, the protruding wall is provided with a protruding portion protruding outward, the holding wall has a holding portion at a lower end thereof, and the holding portion protrudes toward an inside of the first receiving portion and is snapped with the protruding portion.

As a further improvement of the invention, the frame comprises a front frame positioned at the front side of the light guide plate, a rear frame positioned at the rear side of the light guide plate and a pair of side frames positioned at two sides of the light guide plate in the transverse direction, wherein the front frame is provided with a claw which is vertically arranged at the top of the front frame and protrudes forwards and has elasticity, and the free tail end of the claw extends into a pre-embedded box which is pre-arranged on the inner container so as to be limited by the pre-embedded box.

As a further improvement of the invention, the front frame is provided with at least two clamping claws, each clamping claw comprises a standing arm and a cantilever arm formed by extending forwards from the top end of the standing arm, and the cantilever arm is inserted forwards and limited in a limiting groove arranged on the embedded box.

As a further improvement of the invention, the rear rim also has a spring arm extending downwardly and rearwardly from the rear end of the mounting wall, the spring arm being located in front of the rear abutment wall of the liner to be resisted by it.

As a further improvement of the invention, the inner container is provided with a plurality of convex hulls protruding downwards from the top wall of the inner container, and the convex hulls are positioned right above the frame to limit the upper side of the frame.

As a further improvement of the present invention, the frame includes a front frame located at a front side of the light guide plate, a rear frame located at a rear side of the light guide plate, and a pair of side frames located at both sides of the light guide plate in a lateral direction, and the convex hull is located right above the side frames.

The invention has the beneficial effects that: according to the refrigeration equipment, the lamp strip of the surface light source assembly is arranged in the first accommodating part of the frame, the edge part of the light guide plate is clamped and fixed in the second accommodating part of the frame, and compared with the second accommodating part, the first accommodating part is arranged far away from the center of the light guide plate, so that the direct irradiation of light rays is reduced, the light emitting area is increased, the light rays can be uniformly distributed, and the generation of dazzling light rays is avoided.

Drawings

Fig. 1 is a perspective view of a first embodiment of the refrigeration appliance of the present invention.

Fig. 2 is a view of the refrigeration appliance of fig. 1 from another perspective.

Fig. 3 is an exploded perspective view of the refrigeration unit of fig. 1 with the liner removed.

Fig. 4 is a perspective view of a front bezel of the refrigeration appliance of fig. 1.

Fig. 5 is a side view of the front bezel shown in fig. 4.

Fig. 6 is a side view of the rear bezel of the refrigeration appliance of fig. 1.

Fig. 7 is a side view of a lamp housing of the refrigeration appliance of fig. 1.

Fig. 8 is a perspective view of a front pre-buried box of the refrigeration appliance of fig. 1.

Fig. 9 is a partial sectional view of a front structure of the refrigeration apparatus shown in fig. 1.

Fig. 10 is a partial sectional view of a rear structure of the refrigeration apparatus shown in fig. 1.

Fig. 11 is a perspective view showing a structure of a second embodiment of the refrigerating apparatus of the present invention.

Fig. 12 is a view of the refrigeration appliance of fig. 11 from another perspective.

Fig. 13 is a partial sectional view of a front structure of the refrigeration apparatus shown in fig. 11.

Fig. 14 is a partial sectional view of a rear structure of the refrigeration apparatus shown in fig. 11.

Fig. 15 is a perspective view showing a third embodiment of the refrigerating apparatus of the present invention.

Fig. 16 is a view of the refrigeration appliance of fig. 15 from another perspective.

Fig. 17 is a partial sectional view of a front structure of the refrigeration apparatus shown in fig. 15.

Fig. 18 is a partial sectional view of a rear structure of the refrigeration apparatus shown in fig. 15.

Fig. 19 is a perspective view of a front pre-buried box of the refrigeration appliance of fig. 15.

Fig. 20 is a perspective view of a rear pre-buried box of the refrigeration appliance of fig. 15.

Fig. 21 is a partial sectional view of the front structure of a fourth embodiment of the refrigeration apparatus of the present invention.

Fig. 22 is a partial sectional view of a rear structure of a fourth embodiment of the refrigeration apparatus of the present invention.

Fig. 23 is a partial sectional view of the front structure of a fifth embodiment of the refrigeration apparatus of the present invention.

Fig. 24 is a partial sectional view of a rear structure of a fifth embodiment of the refrigeration apparatus of the present invention.

Fig. 25 is a partial sectional view of the front structure of a sixth embodiment of the refrigeration apparatus of the present invention.

Fig. 26 is a partial sectional view of a rear structure of a sixth embodiment of the refrigeration apparatus of the present invention.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. The embodiment is not intended to limit the present invention, and structural, methodological, or functional modifications of the invention according to the embodiment are included in the scope of the invention.

Please refer to fig. 1 to 10 for a first embodiment of the refrigeration apparatus 100 of the present invention, fig. 11 to 14 for a second embodiment of the refrigeration apparatus of the present invention, fig. 15 to 20 for a third embodiment of the refrigeration apparatus of the present invention, fig. 21 to 22 for a fourth embodiment of the refrigeration apparatus of the present invention, fig. 23 to 24 for a fifth embodiment of the refrigeration apparatus of the present invention, and fig. 25 to 26 for a sixth embodiment of the refrigeration apparatus of the present invention.

Referring to fig. 1 to 10, a first embodiment of a refrigeration apparatus 100 is mainly described as an example, where the refrigeration apparatus 100 includes a liner 1 defining a refrigeration compartment with an opening at a front side, a surface light source assembly 2 fixed to a top of the refrigeration compartment, and a plurality of frame 3 fixing the surface light source assembly 2 around, and the frame 3 includes a front frame 3a and a rear frame 3b disposed at front and rear sides of the surface light source assembly 2.

The refrigeration equipment 100 is further provided with an embedded box 4 embedded in the liner 1, the embedded box 4 comprises a front embedded box 41 and a rear embedded box 42 which are arranged independently of each other, the front embedded box 41 is matched and fixed with the front frame 3a, and the rear embedded box 42 is matched and fixed with the surface light source assembly 2.

The top wall 11 of the liner 1 is provided with an upwardly arched bulge 112, and the front pre-buried box 41 is fixed on the bulge 112. The bulge 112 has an upper wall 1121, a front wall 1122 and a rear wall 1123, which are connected to each other, and the front pre-buried box 41 is disposed at least against the upper wall 1121.

In addition, in the embodiments of the present invention, the refrigeration apparatus 100 further includes a set of reinforcing irons 5 positioned at corners of the frame 3, and each corner of the frame 3 is provided with one reinforcing iron 5.

In the present invention, the surface light source assembly 2 includes a light bar 21 and a light guide plate 22, each of the frame 3 has a first receiving portion 31 for receiving the light bar 21 and a second receiving portion 32 for receiving and fixing an edge portion of the light guide plate 22, and the first receiving portion 31 is disposed away from a center of the light guide plate 22 than the second receiving portion 32.

Specifically, the first accommodating portion 31 includes a partition wall 311 and a mounting wall 312 connected to the partition wall 311, the light bar 21 is attached to a lower surface of the mounting wall 312, the partition wall 311 is formed by extending upward from a top surface of the second accommodating portion 32, and the mounting wall 312 is perpendicular to the partition wall 311.

In the present invention, the light bars 21 are parallel to the light guide plate 22 and are all disposed horizontally. In this embodiment, the light bar 21 is a blue light plate, and is adhered to the lower surface of the mounting wall 312.

Meanwhile, the first accommodating portion 31 further has a holding wall 313 extending from an outer edge of the mounting wall 312 in a downward bending manner, the surface light source assembly 2 further has a lamp cover 23 covering the lamp bar 21 and the light guide plate 22 on an inner side thereof, the lamp cover 23 is buckled with the frame 3, and the second accommodating portion 32 has a clamping groove 321 for accommodating the light guide plate 22.

The lamp cover 23 has a flat plate portion 231 disposed parallel to the light guide plate 22 and a plurality of side walls 232 standing on the flat plate portion 231, the flat plate portion 231 further has a front edge 2313 protruding in front of the side walls 232 at the front side, and each side wall 232 has a protruding wall 2321 protruding upwards into the first accommodating portion 31 and being snapped with the retaining wall 313.

Further, the height of the retaining wall 313 extending downward from the mounting wall 312 is smaller than the height of the partition wall 311 extending downward from the mounting wall 312, so that the first receiving portion 31 is disposed open forward.

The protruding wall 2321 is provided with a protruding portion 2322 protruding outwards, the holding wall 313 has a holding portion 3131 located at a lower end thereof, and the holding portion 3131 protrudes towards the interior of the first accommodating portion 31 and is buckled with the protruding portion 2322.

The first accommodating portion 31 is provided with an inclined surface 314 facing the light bar 21, the light emitted from the light bar 21 is diffusely emitted through the inclined surface 314 and projected onto the lamp cover 23, and the inclined surface 314 has a shape with a lower outside and a higher inside, that is, a side of the inclined surface close to the second accommodating portion 32 is higher and a side of the inclined surface far from the second accommodating portion 32 is lower; taking the inclined surface 314 of the front frame 3a as an example, the inclined surface 314 is formed in a shape of being low in front and high in rear, so that the distance from the rear end to the mounting wall 312 is smaller than the distance from the front end to the mounting wall 312.

In addition, the light bar 21 is located directly above the inclined surface 314, and the orthographic projection of the light bar 21 on the horizontal plane falls completely inside the orthographic projection of the inclined surface 314 on the horizontal plane.

The frame 3 includes a front frame 3a located at the front side of the light guide plate 22, a rear frame 3b located at the rear side of the light guide plate 22, and a pair of side frames 3c located at two sides of the light guide plate 22 in the lateral direction, the front frame 3a has a claw 34 standing on the top thereof and protruding forward and having elasticity, and the front pre-buried box 41 has a limiting portion 412 for accommodating and limiting the claw 34. The free end of the claw 34 extends into the front pre-embedded box 41 to be limited by the front pre-embedded box 41.

The front frame 3a is provided with at least two claws 34, each claw 34 includes a rising arm 341 and a cantilever arm 342 extending forward from the top end of the rising arm 341, and the cantilever arm 342 is inserted forward and is limited in a limiting groove 4123 provided on the front pre-buried box 41.

The cantilever 342 includes a horizontal section 3421 and an inclined section 3422 extending forward and upward from the front end of the horizontal section 3421, and the inclined section 3422 and a section of the horizontal section 3421 on the front side are inserted into the limiting groove 4123.

As shown in fig. 3 to 5, in the present embodiment, the number of the claws 34 is three, which are arranged in the lateral direction to the front frame 3a. The front frame 3a further has an extension wall 36 extending rearward from the mounting wall 312 and located above the second receiving portion 32, and a connection wall 37 connecting the rear end of the extension wall 36 with the second receiving portion 32. The standing arms 341 of the claw 34 extend upward from the extending wall 36, and the partition wall 311, the extending wall 36, and the connecting wall 37 are connected to the second receiving portion 32 to form a hollow cavity.

As shown in fig. 6, the rear rim 3b further has a spring arm 35 extending downward and rearward from the rear end of the mounting wall 312, the spring arm 35 being located in front of the rear blocking wall 12 of the liner 1 to be blocked by it.

As shown in fig. 1, 9 and 10, the liner 1 has a plurality of convex hulls 113 protruding downward from the top wall 11 thereof, the convex hulls 113 are located right above the side frames 3 to limit the upper side of the side frames 3, and the convex hulls 113 are located right above the side frames 3 c.

In the present invention, the rear pre-buried box 42 is disposed near the rear frame 3b, the side wall 232 of the lampshade 23 at the rear portion thereof is provided with a rear protruding portion 2323 protruding to the rear side, and the rear protruding portion 2323 is buckled with the rear pre-buried box 42.

Specifically, in the present embodiment, the rear pre-buried box 42 includes a plate portion 421 overlapped on the top wall 11 of the liner 1, a vertical portion 422 extending downward from the bottom surface of the plate portion 421, and a front protruding wall 423 formed by protruding forward from the vertical portion 422, where the front protruding wall 423 is located on the lower side of the rear protruding portion 2323 to stop the rear protruding portion 2323.

In the first embodiment of the present invention, the front pre-buried box 41 has a longitudinal shape extending along a transverse direction, and includes a plate body 411 extending along the transverse direction and a plurality of limiting portions 412 disposed on a lower side of the plate body 411, wherein the limiting portions 412 are fixed on a lower side of the raised portion 112. In this embodiment, the number of the limiting parts 412 is three, so as to be respectively matched with the front frame 31 at two sides and a middle part in the transverse direction.

Each of the limiting portions 412 includes a main body portion 4121 and a pair of wing portions 4122 disposed opposite to the main body portion 4121 on both sides in the lateral direction, the main body portion 4121 has a limiting groove 4123 penetrating the main body portion 4121 in the front-rear direction to accommodate the claw, and each of the wing portions 4122 has a cantilever shape with a free end at a top end so as to have elasticity to be locked to the liner 1. The body portion 4121 further has a blocking rim 4124 located at the front side of the limiting groove 4123, and the blocking rim 4124 partially shields the upper side of the limiting groove 4123.

Further, the plate 411 of the front pre-buried box 41 is attached to the upper surface of the upper wall 1121, and the limiting portion 412 is installed in the mounting hole 1124 formed on the raised portion 112 and located below the upper wall 1121.

As shown in fig. 11 to 14, the basic structure and assembly relation of the fourth embodiment of the refrigeration apparatus of the present invention are substantially the same as those of the first embodiment, and the difference is only that the installation position of the claw 34 and the structures of the front and rear pre-buried boxes 41 and 42 of the pre-buried box 4 are described only in the differences between the two embodiments, and other identical structures will not be described herein.

In the second embodiment, the front frame 3a does not have the structure of the extension wall 36 and the like in the first embodiment, and the claw 34 stands on the upper surface of the mounting wall 312 and partially protrudes on the front side of the holding wall 313. The front pre-buried box 41 comprises a front base 413 overlapped on the outer side of the liner 1 and in a Z shape, and a plurality of limiting parts 412 formed by arching forward from the front base 413, wherein each limiting part 412 is provided with a limiting groove 4123 which is opened backward to accommodate the corresponding claw 34. The connector 200 is inserted into the rear wall 1123 of the bulge 112 of the liner 1.

The rear embedded box 42 includes a rear base 424 overlapping the outer side of the liner 1 and disposed in an L shape, a vertical portion 422 extending downward from the rear base 424, and a front protruding wall 423 protruding forward from the vertical portion 422, where the front protruding wall 423 is located on the front side of the rear wall 13 of the liner 1 and located on the lower side of the rear protruding portion 2323 to stop the rear wall 13. The rear base 424 includes a horizontal portion 4241 and an inclined portion 4242 extending obliquely upward and forward from a front end of the horizontal portion 4241, and the horizontal portion 4241 and the inclined portion 4242 overlap an outer surface of the liner 1.

Referring to fig. 15 to 20, the basic structure and assembly relationship of the third embodiment of the refrigeration apparatus of the present invention are substantially the same as those of the second embodiment, and the difference is only the structure of the front and rear pre-buried boxes 41 and 42 of the pre-buried box 4, and only the differences between the two embodiments will be described below, and other identical structures will not be described herein.

In the third embodiment, the front pre-buried box 41 also includes a front base 413 overlapping the outer side of the liner 1 and having a Z shape, and a plurality of limiting portions 412 formed by arching forward from the front base 413, wherein each limiting portion 412 has a limiting groove 4123 opened backward to accommodate the corresponding claw 34. In addition, the front pre-buried box 41 further has an insertion hole 414 at the bottom thereof to receive the connector 200. The front base 413 of the front pre-buried box 41 includes a top plate 4101 and a rear protruding plate 4102 extending rearward from the top plate 4101, the rear protruding plate 4102 is located on the lower side of the top plate 4101 in the height direction, and the insertion hole 414 is provided below the rear protruding plate 4102.

The rear embedded box 42 includes a Z-shaped rear base 424 overlapping the outer side of the liner 1, a vertical portion 422 extending downward from the rear base 424, and a front protruding wall 423 protruding forward from the vertical portion 422, where the front protruding wall 423 is located on the front side of the rear wall 13 of the liner 1 and below the rear protruding portion 2323 to stop the rear protruding portion.

As shown in fig. 21 to 22, the basic structure and assembly relation of the fourth embodiment of the refrigeration apparatus of the present invention are substantially the same as those of the first embodiment, and the difference is only the structure of the frame 3, and the following description will only be given by the difference between the two embodiments, and other identical structures will not be repeated here.

In the fourth embodiment, the first receiving portion 31 in the frame 3 does not have the inclined surface 314, and the light emitted from the light bar 21 is directly projected onto the lamp cover 23. Specifically, the projection of the protruding wall 2321 of the side wall 232 of the lamp shade 23 onto the light bar 21 falls entirely inside the light bar 21.

As shown in fig. 23 to 24, the basic structure and assembly relation of the fifth embodiment of the refrigeration apparatus of the present invention are substantially the same as those of the second embodiment, and the difference is only that of the frame 3, and the following description will only be given by the difference between the two embodiments, and other identical structures will not be repeated here.

In the fifth embodiment, the first receiving portion 31 in the frame 3 does not have the inclined surface 314, and the light emitted from the light bar 21 is directly projected onto the lamp cover 23. The structure of the first receiving portion 31 of the frame 3 and the arrangement of the light bar 21 are the same as those of the fourth embodiment, and will not be described again here.

As shown in fig. 25 to 26, the basic structure and assembly relation of the sixth embodiment of the refrigeration apparatus of the present invention are substantially the same as those of the third embodiment, and the difference is only the structure of the frame 3, and the following description will only be given by the difference between the two embodiments, and other identical structures will not be repeated here.

In the sixth embodiment, the first receiving portion 31 in the frame 3 does not have the inclined surface 314, and the light emitted from the light bar 21 is directly projected onto the lamp cover 23. The structure of the first receiving portion 31 of the frame 3 and the arrangement of the light bar 21 are the same as those of the fourth embodiment, and will not be described again here.

In the present invention, the light bar 21 of the surface light source assembly 2 is mounted in the first receiving portion 31 of the frame 3, the edge portion of the light guide plate 22 is fastened in the second receiving portion 32 of the frame 3, and the first receiving portion 31 is disposed away from the center of the light guide plate 22 compared with the second receiving portion 32, so as to reduce direct light, increase the light emitting area, uniformly distribute light, and avoid glare.

Terms such as "upper," "lower," "left," "right," "front," "rear," and the like as used herein to refer to a spatial relative position are used for ease of description to describe one feature's relationship to another feature as illustrated in the figures. It will be appreciated that the term spatially relative position is intended to encompass different orientations than those depicted in the figures, depending on the product placement location, and should not be construed as limiting the claims. In addition, the term "horizontal" as used herein is not entirely equivalent to being oriented perpendicular to gravity, allowing for some degree of tilt.

The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.

Claims (10)

1. The utility model provides a refrigeration plant, its includes the inner bag that is limited with the refrigeration room of front side opening, is fixed in the area source subassembly at the top of refrigeration room and be in a plurality of frames of its fixed all around of area source subassembly, area source subassembly includes lamp strip and light guide plate, its characterized in that: each frame is provided with a first accommodating part for accommodating the light bar and a second accommodating part for accommodating and fixing the edge part of the light guide plate, and the first accommodating part is far away from the center of the light guide plate compared with the second accommodating part.

2. The refrigeration appliance of claim 1 wherein: the first accommodating part comprises a partition wall and an installation wall connected with the partition wall, the light bar is attached to the lower surface of the installation wall, the partition wall is formed by extending upwards from the top surface of the second accommodating part, and the installation wall is perpendicular to the partition wall.

3. The refrigeration apparatus of claim 2 wherein: the first containing part is also provided with a fixing wall which is downwards bent and extended from the outer end edge of the mounting wall, the surface light source component is also provided with a lamp shade which covers the lamp strip and the light guide plate on the inner side of the lamp shade, the lamp shade is provided with a flat plate part which is arranged in parallel with the light guide plate and a plurality of side walls which stand on the flat plate part, and each side wall is provided with a protruding wall which protrudes upwards into the first containing part and is buckled with the fixing wall.

4. A refrigeration apparatus according to claim 3 wherein: the height of the retaining wall extending downward from the mounting wall is less than the height of the partition wall extending downward from the mounting wall.

5. A refrigeration apparatus according to claim 3 wherein: the protruding wall is provided with a protruding part protruding outwards, the holding wall is provided with a holding part positioned at the lower end of the holding wall, and the holding part protrudes towards the interior of the first accommodating part and is buckled with the protruding part.

6. The refrigeration apparatus of claim 2 wherein: the frame is including being located the preceding frame of light guide plate front side, be located the back frame of light guide plate rear side and be located the light guide plate is a pair of side frame of both sides in the lateral direction, preceding frame has and erects its top and the forward protruding jack catch that stretches out and have elasticity, the free end of jack catch stretches into in advance locate in the pre-buried box on the inner bag is spacing by pre-buried box.

7. The refrigeration appliance of claim 6 wherein: the front frame is provided with at least two clamping claws, each clamping claw comprises a standing arm and a cantilever arm formed by extending forwards from the top end of the standing arm, and the cantilever arm is inserted forwards and limited in a limiting groove arranged on the embedded box.

8. The refrigeration appliance of claim 6 wherein: the rear rim also has a spring arm extending downwardly and rearwardly from the rear end of the mounting wall, the spring arm being positioned in front of the rear retaining wall of the liner to be retained thereby.

9. The refrigeration appliance of claim 1 wherein: the inner container is provided with a plurality of convex hulls protruding downwards from the top wall of the inner container, and the convex hulls are positioned right above the frame to limit the upper side of the frame.

10. The refrigeration appliance of claim 9 wherein: the frame comprises a front frame positioned at the front side of the light guide plate, a rear frame positioned at the rear side of the light guide plate and a pair of side frames positioned at two sides of the light guide plate in the transverse direction, and the convex hull is positioned right above the side frames.