Sealed motor of commercial steaming and baking oven

Abstract

The utility model belongs to the technical field of commercial steaming and baking oven motors, and discloses a sealing type motor of a commercial steaming and baking oven, which comprises a lower casing, a first bearing, a motor rotating shaft, a motor rotor, a motor stator, a second bearing, an upper casing, a sealing element and a locking screw, the first bearing is connected with the lower end of the motor rotating shaft in a sleeved mode, the lower section of the motor rotating shaft is sleeved with the motor rotor, the motor rotor is sleeved with the motor stator, the middle section of a shaft body of the motor rotating shaft is sleeved with the second bearing, and the second bearing is connected to the center of the inner wall of the upper machine shell in a sleeved mode. The center of the outer wall of the upper machine shell is sleeved with the sealing piece, the sealing piece is further sleeved with the motor rotating shaft, the motor stator is fixed through matching of the upper machine shell and the lower machine shell, and the lower machine shell and the upper machine shell are connected through locking screws. The grounding protection device has excellent sealing performance and good grounding protection.

Description

TECHNICAL FIELD

[0001] The utility model belongs to commercial steaming oven furnace motor technical field, more specifically, it is related to a kind of sealing type motor of commercial steaming oven furnace. BACKGROUND

[0002] Commercial steaming oven furnace motor is the core component in oven equipment, mainly used to drive fan or stirring device inside oven, to realize the uniform distribution of heat and the uniform heating of food material.This kind of motor is usually installed in the back or side of oven, and wind blade is rotated by motor rotating shaft, to generate air flow, promote the circulation of heat inside oven.Hot oven oven motor not only needs to have good high-temperature resistance, to cope with high-temperature environment inside oven, but also needs to have stable running performance and longer service life, to ensure the overall performance and use effect of oven equipment.

[0003] Although existing commercial steaming oven motor meets the basic needs of oven equipment to some extent, there are still some problems to be solved in actual application process.Firstly, the sealing performance of prior art is poor.Due to the existence of high temperature, steam and other harsh environments inside oven, if the sealing performance of motor is insufficient, the inside of motor is easily eroded, thereby affecting the normal operation and service life of motor.Specifically, steam and moisture may penetrate into the inside of motor, causing motor components to rust, corrode or short circuit, and then causing failure or safety hazard.Secondly, prior art is insufficient in grounding protection.In the use process of oven equipment, electrical safety is crucial.However, some existing commercial steaming oven motors are not perfect in grounding protection design, and are easy to cause electric shock accident in electrical fault, to bring safety hazard to user.

[0004] Therefore, the utility model provides a kind of sealing type motor of commercial steaming oven furnace. UTILITY MODEL CONTENTS

[0005] In view of the above problems existing in prior art, the purpose of the utility model is to provide a kind of sealing type motor of commercial steaming oven furnace, with excellent sealing performance and good grounding protection.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] The utility model provides a sealing type motor of commercial steaming oven stove, including lower casing, first bearing, motor shaft, motor rotor, motor stator, second bearing, upper casing, seal and locking screw, the centre of lower casing is equipped with first bearing, first bearing is connected with the lower end of motor shaft, the lower section of motor shaft is equipped with motor rotor, motor rotor is equipped with motor stator, the medium section of the shaft body of motor shaft is equipped with second bearing, second bearing is connected in the centre of the inner wall of upper casing, the centre of the outer wall of upper casing is equipped with seal, seal is also connected with motor shaft, motor stator is fixed through upper casing and lower casing, lower casing is connected with upper casing through locking screw, and the upper end of motor shaft is connected with a centrifugal fan.

[0008] As a further preferred technical solution of the utility model, the seal is a circular ring body, the material of the seal is rubber, the inner wall of the seal is attached to the outer wall of the motor shaft, and the outer wall of the seal is attached to the upper casing.

[0009] As a further preferred technical solution of the utility model, the motor shaft is a stepped shaft, and the motor shaft is provided with a plurality of stepped shaft segments of different diameters or shapes.

[0010] As a further preferred technical solution of the utility model, the motor shaft is provided with six stepped shaft segments.

[0011] As a further preferred technical solution of the utility model, the outer wall of the upper casing is provided with a first groove at the center for nesting the seal, the inner wall of the upper casing is provided with a second groove at the center for nesting the second bearing, the outer periphery of the upper end surface of the upper casing is outwardly extended and provided with a circular protrusion for fixing the motor, a mounting hole is formed at the center of the circular protrusion, the left and right ends of the side wall of the upper casing are outwardly extended and provided with a first triangular protrusion for connecting with the lower casing, a mounting hole is formed in the first triangular protrusion for mounting the locking screw, and the inner periphery of the lower end of the upper casing is provided with a first annular groove for fixing the motor stator.

[0012] As a further preferred technical scheme of the utility model, the third groove for nesting and installing the first bearing is arranged at the center of the inner wall of the lower casing, the second triangular convex is arranged on the left end and the right end of the side wall of the lower casing outwardly for connecting with the upper casing, the mounting hole for installing the locking screw is arranged on the second triangular convex, and the second annular groove for fixing the motor stator is arranged on the inner periphery of the upper end of the lower casing.

[0013] As a further preferred technical scheme of the utility model, the second triangular convex is arranged on the left end or the right end of the side wall of the lower casing outwardly, and a round polygon convex is arranged beside the second triangular convex, the round polygon convex is provided with a mounting hole, and the grounding terminal is arranged in the mounting hole of the round polygon convex.

[0014] As a further preferred technical scheme of the utility model, the threaded fastening head is arranged at the center of the centrifugal wind wheel, the outer thread is arranged on the upper end of the motor rotating shaft, and the threaded fastening head of the centrifugal wind wheel is screwed with the outer thread of the upper end of the motor rotating shaft.

[0015] As described above, the utility model provides a sealed motor of a commercial steaming oven, which has the following beneficial effects:

[0016] 1. Excellent sealing performance: the sealed motor of the commercial steaming oven of the utility model is compared with the prior art, and since the structure is adopted, the sealing element is arranged at the center of the outer wall of the upper casing of the motor, the inner wall of the sealing element is attached to the outer wall of the motor rotating shaft, and the outer wall is attached to the upper casing, thereby forming an effective sealing structure, the design significantly improves the sealing performance of the motor, effectively prevents the erosion of the motor inside by the high temperature, steam and other harsh environments inside the steaming oven, and thereby prolongs the service life of the motor.

[0017] 2. Good grounding protection: the sealed motor of the commercial steaming oven of the utility model is compared with the prior art, and since the structure is adopted, the grounding terminal is arranged on the side wall of the lower casing, and is installed through the round polygon convex and the mounting hole thereon. The design ensures the safety of the motor during operation, and effectively prevents electric shock accidents caused by electrical faults.

[0018] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor under the premise of the drawings.

[0020] Figure 1 A structure diagram of a sealing type motor of a commercial steaming oven furnace according to the present application;

[0021] Figure 2 A sectional view of a sealing type motor of a commercial steaming oven furnace according to the present application;

[0022] Figure 3 A structure diagram of an upper machine shell of a sealing type motor of a commercial steaming oven furnace according to the present application;

[0023] Figure 4 A structure diagram of a lower machine shell of a sealing type motor of a commercial steaming oven furnace according to the present application;

[0024] Figure 5 An exploded view of a sealing type motor of a commercial steaming oven furnace according to the present application;

[0025] Figure 6 A structure diagram of an upper machine shell of a sealing type motor of a commercial steaming oven furnace according to the present application.

[0026] Summary of the reference signs and their descriptions:

[0027] 100, lower machine shell; 110, third slot cavity; 120, second type of triangular protrusion; 130, second annular groove; 140, rounded polygonal protrusion; 200, first bearing; 300, motor rotating shaft; 400, motor rotor; 500, motor stator; 600, second bearing; 700, upper machine shell; 710, first slot cavity; 720, second slot cavity; 730, circular protrusion; 740, first type of triangular protrusion; 750, first annular groove; 800, sealing element; 900, locking screw. DETAILED DESCRIPTION

[0028] The embodiments of the present application will be described below by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the present specification.

[0029] It is to be understood that the structure, proportion, size and the like shown in the drawings of the present application are only used to cooperate with the disclosed content, so as to be understood and read by those skilled in the art, and are not used to limit the implementation of the present application, so they do not have substantial technical significance, any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose of the present application, should still fall within the scope of the disclosed technical content. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the present application are only used for clear description, and are not used to limit the scope of the present application, and the change or adjustment of the relative relationship is also regarded as the implementation of the present application without substantial change of the technical content. The specific structure can be described with reference to the drawings of the patent application.

[0030] The utility model provides a kind of sealing type motor of commercial steaming oven, please refer to Figures 1 to 6 As shown in the figure, it comprises lower casing 100, first bearing 200, motor shaft 300, motor rotor 400, motor stator 500, second bearing 600, upper casing 700, sealing element 800 and locking screw 900, the center of the lower casing 100 is provided with the first bearing 200, the first bearing 200 is connected with the lower end of the motor shaft 300, the lower section of the motor shaft 300 is provided with the motor rotor 400, the motor rotor 400 is provided with the motor stator, the second bearing 600 is provided with the motor shaft 300 in the middle section of the shaft body, the second bearing 600 is connected with the inner wall of the upper casing 700, the sealing element 800 is provided with the outer wall of the upper casing 700, the sealing element 800 is also connected with the motor shaft 300, the motor stator 500 is fixed by the upper casing 700 and the lower casing 100, the lower casing 100 and the upper casing 700 are connected by the locking screw 900, and the upper end of the motor shaft 300 is connected with a centrifugal fan.

[0031] The sealing element 800 is a circular ring body, the material of the sealing element 800 is rubber, the inner wall of the sealing element 800 is matched with the outer wall of the motor shaft 300, and the outer wall of the sealing element 800 is matched with the upper casing 700. The circular ring body structure of the sealing element 800 and the selection of rubber material also ensure the stability and durability of the sealing effect. Even in the long-term use process, the sealing element 800 can also maintain good elasticity and sealing performance, and will not cause sealing failure due to aging, deformation and the like.

[0032] The motor rotating shaft 300 is a stepped shaft, and a plurality of stepped shaft segments with different diameters or shapes are arranged on the motor rotating shaft 300. In this embodiment, six stepped shaft segments are arranged on the motor rotating shaft 300. This design not only enhances the strength and rigidity of the rotating shaft, but also makes the connection between the components more stable. At the same time, the upper casing 700 and the lower casing 100 are connected by locking screws 900, further ensuring the stability and reliability of the motor structure.

[0033] In combination with Figure 1 , Figure 3 and Figure 6 , a first groove cavity 710 for nesting and installing the sealing element 800 is arranged at the center of the outer wall of the upper casing 700, a second groove cavity 720 for nesting and installing the second bearing 600 is arranged at the center of the inner wall of the upper casing 700, a circular protrusion 730 for fixing the motor is arranged on the outer periphery of the upper end surface of the upper casing 700, a mounting hole is arranged at the center of the circular protrusion 730, first triangular protrusions 740 for connecting with the lower casing 100 are arranged on the left end and the right end of the side wall of the upper casing 700, mounting holes for installing the locking screws 900 are arranged on the first triangular protrusions 740, and a first annular groove 750 for fixing the motor stator 500 is arranged on the inner periphery of the lower end of the upper casing 700.

[0034] In combination with Figure 4 , a third groove cavity 110 for nesting and installing the first bearing 200 is arranged at the center of the inner wall of the lower casing 100, second triangular protrusions 120 for connecting with the upper casing 700 are arranged on the left end and the right end of the side wall of the lower casing 100, mounting holes for installing the locking screws 900 are arranged on the second triangular protrusions 120, and a second annular groove 130 for fixing the motor stator 500 is arranged on the inner periphery of the upper end of the lower casing 100.

[0035] A rounded polygonal protrusion 140 is arranged beside the second triangular protrusion 120 on the left end or the right end of the side wall of the lower casing 100, the rounded polygonal protrusion 140 is provided with a mounting hole, and a grounding terminal is arranged in the mounting hole of the rounded polygonal protrusion 140.

[0036] A threaded fastening head is arranged at the center of the centrifugal fan, an external thread is arranged on the upper end of the motor rotating shaft 300, and the threaded fastening head of the centrifugal fan is threadedly connected with the external thread on the upper end of the motor rotating shaft 300.

[0037] It should be noted that the structural design of the upper casing 700 and the lower casing 100 considers the convenience of installation, through the groove cavity for nesting installation of the bearing and the sealing element 800, and the setting of the protrusion and the mounting hole for connection and fixation, so that the assembly and disassembly process of the motor is more convenient and fast. In addition, the fixing mode of the motor stator 500 and the centrifugal fan wheel and other components is also designed reasonably and easy to operate, thereby reducing the maintenance cost of the motor.

[0038] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A sealed motor for a commercial steaming oven, characterized by, The utility model provides a motor, including lower casing, first bearing, motor rotating shaft, motor rotor, motor stator, second bearing, upper casing, sealing element and locking screw, the centre of lower casing is equipped with first bearing, first bearing is connected with the lower end of motor rotating shaft, the lower section of motor rotating shaft is equipped with motor rotor, motor rotor is equipped with motor stator, the shaft body medium section of motor rotating shaft is equipped with second bearing, second bearing is connected in the centre of the inner wall of upper casing, the centre of the outer wall of upper casing is equipped with sealing element, sealing element is also connected with motor rotating shaft, motor stator is fixed through the cooperation of upper casing and lower casing, and the lower casing is connected with upper casing through locking screw, and the upper end of motor rotating shaft is connected with a centrifugal fan wheel.

2. A canned motor for a commercial steam oven according to claim 1, characterized in that, The sealing element is a circular ring body, the material of the sealing element is rubber, the inner wall of the sealing element is fitted with the outer wall of the motor rotating shaft, and the outer wall of the sealing element is fitted with the upper casing.

3. A canned motor for a commercial steam oven according to claim 1, characterized in that, The motor rotating shaft is a stepped shaft, and the motor rotating shaft is provided with a plurality of stepped shaft segments with different diameters or shapes.

4. A canned motor for a commercial steam oven according to claim 3, characterized in that, The motor rotating shaft is provided with six stepped shaft segments.

5. A canned motor for a commercial steam oven according to claim 1, characterized in that, The outer wall of the upper casing is provided with a first groove cavity in the center for nesting the sealing element, the inner wall of the upper casing is provided with a second groove cavity in the center for nesting the second bearing, the outer periphery of the upper end surface of the upper casing is outwardly extended to provide a circular protrusion for fixing the motor, the center of the circular protrusion is provided with a mounting hole, the left end and the right end of the side wall of the upper casing are outwardly extended to provide a first triangular protrusion for connecting with the lower casing, the first triangular protrusion is provided with a mounting hole for mounting the locking screw, and the inner periphery of the lower end of the upper casing is provided with a first annular groove for fixing the motor stator.

6. A canned motor for a commercial steam oven according to claim 1, characterized in that, The inner wall of the lower casing is provided with a third groove cavity in the center for nesting the first bearing, the left end and the right end of the side wall of the lower casing are outwardly extended to provide a second triangular protrusion for connecting with the upper casing, the second triangular protrusion is provided with a mounting hole for mounting the locking screw, and the inner periphery of the upper end of the lower casing is provided with a second annular groove for fixing the motor stator.

7. A canned motor for a commercial steam oven according to claim 6, characterized in that, The left end or the right end of the side wall of the lower casing is outwardly extended to provide a second triangular protrusion, and a rounded polygonal protrusion is provided beside the second triangular protrusion, the rounded polygonal protrusion is provided with a mounting hole, and a grounding terminal is arranged in the mounting hole of the rounded polygonal protrusion.

8. A canned motor for a commercial steam oven according to claim 1, characterized in that, The center of the centrifugal fan wheel is provided with a threaded fastening head, the upper end of the motor rotating shaft is provided with an external thread, and the threaded fastening head of the centrifugal fan wheel is threadedly connected with the external thread of the upper end of the motor rotating shaft.

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