CN211484104U - Circuit board assembly structure with isolated heat source - Google Patents

Abstract

The utility model relates to a circuit board assembly structure with isolated heat source, which is arranged in a host casing of a kitchen appliance, wherein the host casing comprises a body support and a base, the body support comprises a main body casing and a control box casing which are connected into a whole and are respectively used for assembling a motor, an IH heating coil and a circuit board, and the base comprises a main body base and a control box base which are connected into a whole and are respectively assembled below the main body casing and the control box casing; the assembly structure comprises an isolation rib formed at the joint of the main body shell and the control box shell, a main body heat dissipation assembly arranged in the main body shell and a circuit board heat dissipation assembly arranged in the control box shell, wherein at least two lead isolation clamping grooves for respectively allowing the strong/weak leads to pass through and isolating the strong/weak leads from each other are arranged on the isolation rib at intervals along the length direction of the isolation rib. The utility model discloses realize that the heat dissipation is separated with circuit board separation installation, two independent casings in the source that generates heat, reduce the thermal interference to the circuit board greatly.

Description

Circuit board assembly structure with isolated heat source

Technical Field

The utility model belongs to the technical field of the kitchen electricity, especially, relate to a circuit board assembly structure that heat source is kept apart.

Background

The frying machine is a new generation of microcomputer-controlled intelligent cooking equipment, is mainly convenient, simple in operation and free of oil smoke, not only can automatically discharge materials, season, stir-fry, control temperature, clean and take out of a pot, but also has the functions of frying, cooking, frying, exploding, stewing, steaming, boiling, baking, stewing, cooking and the like, and easily realizes automation and fun of a cooking process. With the development of electronic equipment, the application of storage equipment is more and more extensive, and the storage equipment is not only applied to daily equipment such as digital cameras and mobile phones, but also applied to microcomputer-controlled intelligent cooking equipment such as cooking machines. Among the intelligent cooking equipment on the existing market, the product is a cavity, if the product is some motors, heating members such as IH, and the heat that produces in the work can heat components and parts on the circuit board, and easy to use components and parts temperature rise exceeds standard, and components and parts are ageing.

Therefore, based on the problems, the circuit board assembly structure which realizes the separated installation of the heating source and the circuit board and the separated heat dissipation of the two independent shells and greatly reduces the heat interference of the heating source to the circuit board and is separated from the heat source is provided, and the circuit board assembly structure has important practical significance.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem that exists among the above-mentioned prior art, provide one kind and realized generating heat source and circuit board separate installation, two independent casings and separate the heat dissipation, reduce the circuit board assembly structure that the heat source of the thermal interference of generating heat source to the circuit board keeps apart greatly.

The utility model discloses a solve the technical scheme who takes of this problem and be:

a circuit board assembly structure with isolated heat source is arranged in a main machine shell of a kitchen appliance, the main machine shell comprises a body support and a base, the body support comprises a main body shell and a control box shell which are connected into a whole and are respectively used for assembling a motor, an IH heating coil and a circuit board, and the base comprises a main body base and a control box base which are connected into a whole and are respectively assembled below the main body shell and the control box shell;

the assembly structure comprises an isolation rib formed at the joint of the main body shell and the control box shell, a main body heat dissipation assembly arranged in the main body shell and a circuit board heat dissipation assembly arranged in the control box shell, wherein at least two lead isolation clamping grooves for respectively allowing the strong/weak leads to pass through and isolating the strong/weak leads from each other are arranged on the isolation rib at intervals along the length direction of the isolation rib.

Preferably, the lead isolation clamping groove is formed in the lower end face of the isolation rib, and the lead isolation clamping groove is of an open structure at the lower end.

Preferably, the width and the height of each lead isolation slot are different, and the edge of each lead isolation slot is in a smooth transition structure.

Preferably, a positioning cylindrical surface for positioning the plug-in motor and a fixing surface for fixing the upper end surface of the motor are formed in the main body shell, and the main body shell is fixedly connected with the main body base through a plurality of threaded columns and screws.

Further preferably, the main body heat dissipation assembly comprises a first air inlet group, a first exhaust port group and an exhaust fan, wherein the first air inlet group and the first exhaust port group are arranged on the main body base in a penetrating mode, the vent group is arranged on the fixed surface in a penetrating mode, the exhaust fan is assembled above the main body base, and the exhaust fan is located above the first exhaust port group.

Further preferably, the lower end of the main body base is further provided with a separation rib, the separation rib separates the main body base into a near control box area close to the control box base and a far control box area far away from the control box base, and the first exhaust port component is distributed on the far control box area.

Further preferably, the first air inlet group comprises a plurality of strip-shaped holes which are annularly arrayed by taking the circle center of the main body base as the center, and the first air outlet group comprises a plurality of strip-shaped holes which are equidistantly distributed in the remote control box part.

Further preferably, the partition rib includes an arc portion formed between the first air inlet group and the first air outlet group, and an extension portion formed at the periphery of the first air inlet group and extending along the radial direction of the lower end of the main body base.

Preferably, the circuit board heat dissipation assembly comprises a heat dissipation fan, a front support and a rear support which are respectively used for assembling at least one circuit board, and a second air inlet group and a second air outlet group which are respectively arranged on the control box base and the control box shell in a penetrating manner.

Further preferably, at least one first assembling position for assembling the circuit board is formed on one side of the front support facing the rear support, at least one second assembling position for assembling the circuit board is formed on one side of the rear support facing away from the front support, a fan assembling position for accommodating the cooling fan is further formed at the lower end of the rear support, and a front support matching hole and a rear support matching hole for installing the front support and the rear support respectively are formed in the control box base.

Further preferably, second air intake group includes the bar hole that a plurality of matrixes were arranged, second air exit group includes the through-hole that a plurality of matrixes were arranged, fan assembly position, radiator fan are located the top that the second air exit was organized.

Preferably, the control box casing is the shell structure that is enclosed to establish by curb plate, lower plate, display screen curb plate, postnotum and forms, the quantity of second air exit group is two at least, distributes respectively on curb plate/postnotum down, and each the second air exit group height is not uniform.

Further preferably, the lower end of the base is provided with support legs at positions close to four corners, and the support legs are elastic and have a certain height.

The utility model has the advantages and positive effects that:

1. the utility model discloses in, keep apart on the rib along its length direction spaced apart be equipped with at least two respectively supply strong/weak lead wire to pass and make the lead wire isolation draw-in groove of each strong/weak lead wire mutual isolation, can realize the source of generating heat and circuit board through keeping apart the rib and separate the installation, realize that the heat source keeps apart, can realize again that the pin connection between two casings is not disturbed to keep apart the strong/weak lead wire of difference.

2. The utility model discloses in, the heat that main part radiator unit was used for heating member production such as motor and IH heating coil in the main part casing dispels the heat, and circuit board radiator unit is used for dispelling the heat that a plurality of circuit boards in the control box casing produced, and the heat dissipation is separated to two independent casings, reduces the heat interference of heating member such as motor and IH heating coil to the circuit board greatly, improves the life of circuit board, and the double-pipe is together, has improved radiating efficiency, radiating effect greatly.

3. In the main part radiator unit, first exhaust port group is located the remote control box region for the hot-blast isolation rib, the lead wire of keeping away from of derivation keep away from, can effectively reduce hot-blastly keep apart in the draw-in groove enters into the control box casing through the lead wire, greatly reduced heating member such as motor and IH heating coil to the thermal interference of circuit board.

4. The utility model discloses in, separate muscle one side air inlet opposite side and exhaust, separate the setting of muscle and can effectively reduce thermal interference between first air intake group and the first exhaust port group.

5. In the circuit board heat dissipation assembly, cold air enters the control box shell through the second air inlet group, half of the cold air blows components of the first circuit board on the front support, and the other half of the cold air directly blows components of the second circuit board and the third circuit board on the rear support and is finally discharged through the second air outlet group, so that the synchronous cooling effect of the circuit boards is achieved.

Drawings

The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus are not intended to limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.

FIG. 1 is a schematic longitudinal sectional view of a main housing;

FIG. 2 is a schematic perspective view of the main housing;

FIG. 3 is a schematic diagram of a transverse cross-sectional structure of the main frame housing;

FIG. 4 is an exploded view of the circuit board assembly;

fig. 5 is a schematic bottom perspective view of the main body case and the control box case.

In the figure: 1. a motor, 2, an IH heating coil, 3, a main body shell, 4, a control box shell, 5, a main body base, 6, a control box base, 7, an isolation rib, 8, a lead isolation clamping groove, 9, a positioning cylindrical surface, 10, a fixing surface, 11, a first air inlet group, 12, a first exhaust port group, 13, an exhaust port group, 14, an exhaust fan, 15, a separation rib, 16, a near control box area, 17, a far control box area, 18. the air conditioner comprises a front support, 19, a first circuit board, 20, a first assembly position, 21, a rear support, 22, a third circuit board, 23, a second circuit board, 24, a lower second assembly position, 25, an upper second assembly position, 26, a fan assembly position, 27, a second air inlet group, 28, a second air outlet group, 29, an upper side plate, 30, a lower side plate, 31, a display screen side plate, 32, a rear back plate, 33, a front support matching hole, 34 and a rear support matching hole.

Detailed Description

First, it should be noted that the specific structures, features, advantages, etc. of the present invention will be described in detail below by way of example, but all the descriptions are only for illustrative purpose and should not be construed as forming any limitation to the present invention. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations. The present invention will be described in detail with reference to fig. 1 to 5.

Example (b):

a circuit board assembly structure with isolated heat source is arranged in a main machine shell of a kitchen appliance, the main machine shell comprises a body support and a base, the body support comprises a main body shell 3 and a control box shell 4 which are connected into a whole and are respectively used for assembling a motor 1, an IH heating coil 2 and a circuit board, and the base comprises a main body base 5 and a control box base 6 which are connected into a whole and are respectively assembled below the main body shell 3 and the control box shell 4; the assembling structure comprises an isolation rib 7 formed at the joint of the main body shell 3 and the control box shell 4, a main body heat dissipation assembly arranged in the main body shell 3 and a circuit board heat dissipation assembly arranged in the control box shell 4, wherein at least two lead isolation clamping grooves 8 for respectively allowing the strong/weak leads to pass through and isolating the strong/weak leads from each other are arranged on the isolation rib 7 at intervals along the length direction of the isolation rib.

The working principle is as follows: the main machine shell is assembled by a body support and a base, the body support comprises a main body shell 3 and a control box shell 4 which are connected into a whole, a motor 1 and an IH heating coil 2 are assembled in the main body shell 3, a circuit board is assembled in the control box shell 4, heating elements such as the motor 1 and the IH heating coil 2 can generate heat in the working process of the kitchen appliance, if the components on the circuit board can be heated without taking measures, the temperature rise of the components is easy to exceed the standard, and the components are easy to age, as shown in fig. 1-5, an isolation rib 7 is arranged at the joint of the main body housing 3 and the control box housing 4, the isolation rib 7 is used for separating the main body housing 3 from the control box housing 4, the middle isolation rib 7 separates the main body housing 3 from the control box housing 4 in the heat dissipation process, and the heat source is separately installed with the circuit board to realize heat source isolation; in addition, at least two lead isolation clamping grooves 8 which are respectively used for the strong/weak leads to pass through and enable the strong/weak leads to be isolated from each other are arranged on the isolation ribs 7 at intervals along the length direction of the isolation ribs, the isolation of the main body shell 3 and the control box shell 4 can be realized through the isolation ribs 7, the lead connection between the two shells can be free from interference, and the design is carried out so as to isolate different strong/weak leads; also, be equipped with main part radiator unit in the main part casing 3, main part radiator unit is used for dispelling the heat that heating member such as motor 1 and IH heating coil 2 in the main part casing 3 produced, be equipped with circuit board radiator unit in the control box casing 4, circuit board radiator unit is used for dispelling the heat that a plurality of circuit boards in the control box casing 4 produced, the heat dissipation is separated to two independent casings, the heat interference of heating member such as motor 1 and IH heating coil 2 to the circuit board that reduces greatly, the life of improvement circuit board, the double-pipe is neat, the radiating efficiency has been improved greatly, the radiating effect.

Furthermore, it can be considered in this embodiment that the lead isolation clamping groove 8 is formed on the lower end surface of the isolation rib 7, and the lead isolation clamping groove 8 is in an open structure at the lower end. The lead isolation slots 8 are respectively used for the strong/weak leads to pass through and isolate the strong/weak leads from each other.

Furthermore, it is also considered in this embodiment that the width and the height of each lead isolation slot 8 are different, and the edge of each lead isolation slot 8 is in a smooth transition structure. A plurality of lead isolation draw-in grooves 8 are applicable to the lead of installing different models respectively, and the edge of lead isolation draw-in groove 8 is slick and sly transition structure, prevents that lead isolation draw-in groove 8 from damaging the lead outer structure.

Furthermore, in the present embodiment, it is also considered that a positioning cylindrical surface 9 for positioning and inserting the motor 1 and a fixing surface 10 for fixing the upper end surface of the motor 1 are formed in the main body housing 3, the motor 1 is fixed between the fixing surface 10 and the main body base 5, and the main body housing 3 and the main body base 5 are fixedly connected through a plurality of threaded posts and screws.

Furthermore, it can be considered in this embodiment that the main body heat dissipation assembly includes a first air inlet set 11, a first exhaust port set 12, and a vent set 13, wherein the first air inlet set and the first exhaust port set are arranged on the main body base 5, the vent set 13 is arranged on the fixing surface 10, and the exhaust fan 14 is arranged above the main body base 5, and the exhaust fan 14 is arranged above the first exhaust port set 12. When exhaust fan 14 opens, attract down at exhaust fan 14 negative pressure, cold wind at first enters into the space between stationary plane 10 and the main part base 5 through first air intake group 11, a heat for producing the motor dispels the heat, cold wind later enters into the top space of stationary plane 10 through vent group 13, a heat for producing IH heating coil 2 dispels the heat, then return to the space between stationary plane 10 and the main part base 5 through vent group 13, finally pass through exhaust fan 14, first vent group 12 discharges, realize thermal cold and hot exchange, reach radiating effect.

Furthermore, it can be considered in this embodiment that the lower end of the main body base 5 is further provided with a separating rib 15, the separating rib 15 separates the main body base 5 into a near control box area 16 close to the control box base 6 and a far control box area 17 far away from the control box base, and the first exhaust port group 12 is distributed on the far control box area 17. The first air inlet group 11 comprises a plurality of strip-shaped holes which are annularly arrayed by taking the circle center of the main body base as the center, and the first air outlet group 12 comprises a plurality of strip-shaped holes which are equidistantly distributed in the remote control box part. As shown in fig. 2-3, under the suction of the exhaust fan 14, the cold air firstly enters the space between the fixing surface 10 and the main body base 5 through the strip-shaped hole of the first air inlet group 11, and finally is discharged through the exhaust fan 14 and the strip-shaped hole of the first air outlet group 12, because the first air outlet group 12 is located on the remote control box region 17, that is, the cold air enters through the first air inlet group 11, the hot air exits through the first air outlet group 12 (the remote control box region 17), the hot air is far away from the isolation rib 7, and the lead isolation slot 8 can effectively prevent the hot air from entering the control box shell 4 through the lead isolation slot 8, thereby greatly reducing the thermal interference of the heating elements such as the motor 1 and the IH heating coil 2 to the circuit board.

Further, it is also considered in this embodiment that the partition rib 15 includes an arc portion formed between the first intake port group 11 and the first exhaust port group 12, and an extension portion formed on the periphery of the first intake port group 11 and extending along the radial direction of the lower end of the main body base 5. The air is supplied to one side of the separating rib 15 and exhausted from the other side of the separating rib 15, and the arrangement of the separating rib 15 can effectively reduce the thermal interference between the first air inlet group 11 and the first air outlet group 12.

Furthermore, it can be considered in this embodiment that the circuit board heat dissipation assembly includes a heat dissipation fan, a front bracket 18 and a rear bracket 21 for respectively assembling at least one circuit board, and a second air inlet set 27 and a second air outlet set 28 respectively penetrating the control box base 6 and the control box housing 4. Wherein: a side of the front rack 18 facing the rear rack 21 is formed with at least one first mounting position 20 for mounting a circuit board, as shown in fig. 4, a first circuit board 19 is mounted on the first mounting position 20, a side of the rear rack 21 facing away from the front rack 18 is formed with at least one second mounting position for mounting a circuit board, as shown in fig. 4, a side of the rear rack 21 facing away from the front rack 18 is formed with two second mounting positions, an upper second mounting position 25 for mounting a second circuit board 23 and a lower second mounting position 24 for mounting a third circuit board 22, respectively, a lower end of the rear rack 21 is further formed with a fan mounting position 26 for accommodating a heat dissipation fan, when the heat dissipation fan is turned on, cool air is introduced into the control box housing 4 through the second air inlet set 27 by suction of the heat dissipation fan, half of the cool air blows onto components of the first circuit board 19 on the front rack 18, and the other half of the cool air blows directly onto the second circuit board 23, 24, The components of the third circuit board 22 finally blow heat upwards, and the heat is exhausted through the second air outlet group 28, so that the synchronous cooling effect of the plurality of circuit boards is realized.

Furthermore, it is also considered in this embodiment that the control box base 6 is provided with a front bracket matching hole 33 and a rear bracket matching hole 34 for respectively mounting the front bracket 18 and the rear bracket 21.

Still further, consider in this embodiment, second air intake group 27 includes the strip hole that a plurality of matrixes were arranged, second air outlet group 28 includes the through-hole that a plurality of matrixes were arranged, fan assembly position 26, radiator fan are located the top of second air outlet group 28.

Furthermore, it is also considered in this embodiment that the control box housing 4 is a housing structure enclosed by an upper side plate 29, a lower side plate 30, a display side plate 31, and a back plate 32.

Furthermore, it can be considered in this embodiment that the number of the second air outlet sets 28 is at least two, and the two second air outlet sets are respectively distributed on the lower side plate 30/the rear back plate 32, and the heights of the second air outlet sets 28 are different. For discharging heat of different heights inside the control box housing 4 to the outside.

Furthermore, it can be considered in this embodiment that the lower end of the base is provided with support legs at positions close to the four corners, and the support legs have elasticity and a certain height.

It should be noted that the specific structure, operation principle, and circuit structure of the motor and the IH heating coil used in the present invention are prior art, and therefore, will not be described in detail.

To sum up, the utility model provides a realize that the heat dissipation is separated with circuit board to the source that generates heat, two independent casings, the circuit board assembly structure of heat source isolation of the thermal interference of the source of generating heat to the circuit board that reduces greatly.

The above embodiments are described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (10)

1. The utility model provides a circuit board assembly structure that heat source is kept apart, locates in the host computer casing of kitchen utensil, the host computer casing includes body support, base, the body support is including connecting in an organic whole and being used for assembling main part casing (3), control box casing (4) of motor (1) and IH heating coil (2), circuit board respectively, the base is including connecting in an organic whole and assembling in main part casing (3), main part base (5), control box base (6) of control box casing (4) below respectively, its characterized in that:

the assembling structure comprises an isolation rib (7) formed at the joint of a main body shell (3) and a control box shell (4), a main body heat dissipation assembly arranged in the main body shell (3), and a circuit board heat dissipation assembly arranged in the control box shell (4), wherein at least two lead isolation clamping grooves (8) for strong/weak leads to pass through and isolating the strong/weak leads from each other are arranged on the isolation rib (7) at intervals along the length direction of the isolation rib.

2. A heat source isolated circuit board mounting structure as claimed in claim 1, wherein: lead wire isolation slot (8) are formed in terminal surface under isolation rib (7), lead wire isolation slot (8) are lower extreme open structure, each the width, the height of lead wire isolation slot (8) differ, the edge of lead wire isolation slot (8) is slick and sly transitional construction.

3. A heat source isolated circuit board mounting structure as claimed in claim 2, wherein: a positioning cylindrical surface (9) used for positioning the plug-in motor (1) and a fixing surface (10) used for fixing the upper end surface of the motor (1) are formed in the main body shell (3).

4. A heat source isolated circuit board mounting structure as claimed in claim 3, wherein: the main body radiating assembly comprises a first air inlet group (11) and a first exhaust port group (12) which are arranged on a main body base (5) in a penetrating mode, a vent group (13) which is arranged on a fixed surface (10) in a penetrating mode, and an exhaust fan (14) which is arranged above the main body base (5), wherein the exhaust fan (14) is located above the first exhaust port group (12).

5. A heat source isolated circuit board mounting structure as claimed in claim 4, wherein: the lower extreme of main part base (5) still is provided with partition muscle (15), partition muscle (15) separate into near control box region (16) that is close to control box base (6), keep away from control box region (17) of control box base with main part base (5), first exhaust opening group (12) distributes on far away control box region (17).

6. A heat source isolated circuit board mounting structure as claimed in claim 1, wherein: the circuit board heat dissipation assembly comprises a heat dissipation fan, a front support (18) and a rear support (21) which are respectively used for assembling at least one circuit board, and a second air inlet group (27) and a second air outlet group (28) which are respectively arranged on the control box base (6) and the control box shell (4) in a penetrating mode.

7. A heat source isolated circuit board mounting structure as claimed in claim 6, wherein: at least one first assembly position (20) for assembling the circuit board is formed on one side of the front support (18) facing the rear support (21), at least one second assembly position for assembling the circuit board is formed on one side of the rear support (21) opposite to the front support (18), and a fan assembly position (26) for accommodating a heat dissipation fan is further formed at the lower end of the rear support (21).

8. A heat source isolated circuit board mounting structure as claimed in claim 7, wherein: second air intake group (27) include the bar hole that a plurality of matrixes were arranged, second air exit group (28) include the through-hole that a plurality of matrixes were arranged, fan equipment position (26), radiator fan are located the top of second air exit group (28).

9. A heat source isolated circuit board mounting structure as claimed in claim 8, wherein: the control box shell (4) is a shell structure formed by enclosing an upper side plate (29), a lower side plate (30), a display screen side plate (31) and a rear back plate (32).

10. A heat source isolated circuit board mounting structure as claimed in claim 9, wherein: the number of the second air outlet groups (28) is at least two, the second air outlet groups are respectively distributed on the lower side plate (30)/the rear back plate (32), and the heights of the second air outlet groups (28) are different.

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