Motor operation mechanism unit

Abstract

To provide a motor operation mechanism unit in which a support plate supporting an operation mechanism part including a motor and an object to be driven by the motor is prevented from being greatly downward deformed during a prescribed abnormal time, and any failure caused by vibration of the operation mechanism part does not occur during a normal time.SOLUTION: A motor operation mechanism unit A includes an operation mechanism part 3 including a motor 30 and an object 31 to be driven by the motor, a control board unit 4, a casing 1 housing the operation mechanism part and the control board unit, a support plate 2 that is disposed in a shelf-like shape in the casing 1 and supports the operation mechanism part 3, and a control board unit 4 that is separately mounted in the casing 1. First and second engagement parts E1 and E2 that are respectively disposed on the support plate 2 and the control board unit 4 are included. During an abnormal time when the support plate 2 is deformed downward from a normal position due to a sudden load applied to the operation mechanism part 3, the engagement parts are engaged with each other so as to inhibit the support plate 2 from further going below a prescribed height, whereas the engagement parts are in a non-engaged state during a normal time.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a motor operating mechanism unit such as a pump unit, and more particularly to a motor operating mechanism unit in which a motor and an object to be driven by the motor are housed in a housing. [Background technology]

[0002] The present applicant has previously proposed the one described in Patent Document 1 as a specific example of a motor operation mechanism unit. The motor operation mechanism unit described in this document is a pump unit in which a motor and a pump driven by the motor are housed in a housing. The motor and pump are disposed on the bottom plate of the housing at a low position within the housing. A control panel unit (controller) for controlling the operation of the motor and the pump is attached to the housing at a position above the motor and the pump. According to the above-mentioned configuration, since the heavy motor and pump are provided at a low height, the motor operating mechanism unit has a low center of gravity, and the stability of the entire unit can be improved.

[0003] However, the above-mentioned conventional techniques still have room for improvement, as described below.

[0004] That is, for various reasons, it may be desired to mount the motor and pump higher than the above-mentioned position inside the housing. In this case, for example, it is conceivable to provide a substantially horizontal shelf-like support plate at the middle part (midway point) in the vertical height direction inside the housing, and to adopt a means for mounting the motor and pump on this support plate. However, in a unit employing such a means, if the unit is dropped due to carelessness during transportation and receives an impact, the support plate on which the motor and pump are mounted may be significantly deflected downward. If the support plate is significantly deflected, not only will the support plate be significantly damaged, but the motor and pump may also be damaged, leading to the possibility of them breaking down. Therefore, it is desirable to appropriately eliminate the above-mentioned risk.

[0005] One possible means for eliminating the above-mentioned concerns is to place a control panel unit near the support plate and connect the support plate to the control panel unit for support. However, if such a means is adopted, vibrations generated when the motor and pump are driven are constantly transmitted to the control panel unit (the motor and pump are vibration sources). As a result, new problems arise, such as the screws used to fasten electrical components in the control panel unit loosening due to the vibrations. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2012-225628 A Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention was devised under the circumstances described above, and has as its object to provide a motor operating mechanism unit that can appropriately prevent a support plate supporting an operating mechanism including a motor and its driven object from bending downward and deforming significantly during specified abnormal times when a sudden load occurs, and that can prevent malfunctions caused by vibration of the operating mechanism during normal times. [Means for solving the problem]

[0008] In order to solve the above problems, the present invention provides the following technical solutions.

[0009] The motor operating mechanism unit provided by the present invention comprises an operating mechanism part including a motor and an object to be driven by the motor, a housing for accommodating the operating mechanism part therein, a support plate arranged like a shelf at a vertical height midway within the housing and supporting the operating mechanism part, and a control panel unit having electrical components for controlling the operating mechanism part and attached at a location within the housing different from the operating mechanism part and the support plate, and further comprises first and second engageable parts provided on the support plate and the control panel unit, respectively, and these first and second engageable parts engage with each other to prevent the support plate from descending further than a predetermined height during abnormal times when a sudden load acts on the operating mechanism part and the support plate is bent and deformed downward from its normal position, whereas during normal times when the phenomenon is not occurring, they are in a disengaged state.

[0010] According to this configuration, the following effects can be obtained. That is, when the motor operating mechanism unit is dropped during transportation, and an unexpected load acts on the operating mechanism including the motor and its driven object, causing the support plate to bend downward (abnormal), the first and second engageable parts engage with each other, preventing the support plate from descending below a predetermined height. This makes it possible to appropriately prevent damage or breakdown of the support plate and other components of the operating mechanism caused by the support plate being significantly bent downward. The support plate is prevented from descending during abnormal times by utilizing the first and second engageable parts provided on the support plate and the control panel unit, and the control panel unit is effectively utilized. Therefore, the configuration is rational and can effectively suppress increases in the number of parts and overall weight. On the other hand, in normal operation, the first and second engageable parts are in a disengaged state, so that vibrations of the operating mechanism are prevented from being transmitted from the support plate to the control panel unit via the first and second engageable parts, thereby making it possible to appropriately avoid problems such as poor assembly of the control electrical components in the control panel unit due to vibrations.

[0011] In the present invention, preferably, the first and second engageable portions are overlapping portions spaced apart in the vertical direction during the normal state, and during the non-normal state, the first engageable portion descends as the support plate bends downward and comes into contact with the second engageable portion, and is supported by the second engageable portion.

[0012] According to this configuration, the first and second engageable parts can be simply configured, and the engagement and disengagement operations of the first and second engageable parts can be performed with good reliability.

[0013] In the present invention, preferably, one of the first and second engageable portions includes a peripheral portion of an opening that opens facing approximately horizontally, and the other includes a convex portion that extends approximately horizontally and is inserted into the opening, and the opening has a larger vertical width or diameter than the convex portion, and the peripheral portion of the opening and the convex portion are configured to be in a non-contacting, non-engaged state during the normal state, and to be in an abutting engaged state during the non-normal state.

[0014] According to this configuration, as long as the convex portion is inserted into the opening, the peripheral portion of the opening and the convex portion can be reliably abutted against each other in an abnormal state, thereby increasing the reliability of their engagement. Furthermore, when positioning the first and second engageable portions during assembly and manufacturing of the motor operation mechanism unit, it is only necessary to position the convex portion so that it is inserted into the opening, which is an easy task.

[0015] In the present invention, the convex portion is preferably configured using a screw member screwed into the support plate or the control panel unit.

[0016] According to this configuration, by using a general-purpose screw member, the convex portion can be provided on the support plate or the control panel unit easily and at low cost.

[0017] In the present invention, preferably, the support plate has a bent piece portion formed by bending an edge of the support plate so as to stand up in the vertical height direction, and the opening portion is provided in this bent piece portion.

[0018] According to this configuration, it is possible to easily and inexpensively provide the support plate with an opening that opens in a substantially horizontal direction.

[0019] In the present invention, preferably, the housing comprises a hollow, approximately rectangular housing main body having a pair of left and right side plate portions, a top plate portion, a bottom plate portion, and a back plate portion, and forming a front opening that can be closed by a front panel, the support plate has both longitudinal ends connected to the pair of side plate portions and is bridged between the pair of side plate portions, and a rearward portion of the longitudinal midpoint of the support plate is connected to the back plate portion, the control panel unit has a base member to which the control electrical components are attached, and is fixed to at least one of the bottom plate portion and the pair of side plate portions so that this base member is close to the frontward portion of the longitudinal midpoint of the support plate, and the first and second engageable portions are provided on the frontward portion of the support plate and the base member of the control panel unit, respectively.

[0020] According to this configuration, the following effects can be obtained. That is, the support plate has both ends in the longitudinal direction connected to a pair of side plate portions, and the longitudinal center side of the support plate is easily bent and deformed downward. On the other hand, the rear part of the longitudinal middle part of the support plate is connected to the back plate part of the housing, and this part is prevented from falling significantly downward in an abnormal state. On the other hand, the front part of the longitudinal middle part of the support plate is appropriately prevented from falling significantly downward in an abnormal state by the engagement between the first engageable part provided on the front part of the support plate and the second engageable part provided on the base member of the control panel unit. As a result, the longitudinal center side of the support plate is efficiently and appropriately prevented from falling significantly downward.

[0021] Other features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings. [Brief description of the drawings]

[0022] [Figure 1] FIG. 2 is a perspective view showing an example of a motor operating mechanism unit according to the present invention. [Diagram 2] FIG. 2 is an exploded perspective view of a main part of FIG. [Diagram 3] 3 is an exploded perspective view of the main part of FIG. 2 with a cover of the control panel unit partially opened. [Figure 4] FIG. 4 is a rear perspective view of the cover body shown in FIGS. 1 to 3. [Diagram 5] FIG. 2A is a schematic perspective view of a main portion showing an attachment structure of a support plate within a housing, and FIG. 2B is a perspective view of the support plate shown in FIG. [Figure 6] 2(a) is a schematic cross-sectional side view of the housing main body of FIG. 1, and (b) is a schematic exploded cross-sectional side view of (a). [Figure 7] 6(a) is an enlarged view of part VIIa in FIG. 6(a), and (b) is an explanatory view of the operating state of (a). [Figure 8] 1, and FIG. 8(b) is a front perspective view of the main part of FIG. [Figure 9]FIG. 7 is a cross-sectional view of part IX in FIG. [Figure 10] XX cross-sectional view of FIG. [Figure 11] 1, (a) is an oblique view of the first piping bracket in FIG. 1, (b) is a cross-sectional view taken along line XIb-XIb in (a), (c) is a cross-sectional view taken along line XIc-XIc in (b), and (d) is a cross-sectional view taken along line XId-XId in (b). [Figure 12] 2(a) is a perspective view of the second piping bracket of FIG. 1, (b) is a side view of (a), and (c) is a plan view of (a). [Figure 13] 13(a) and 13(b) are perspective views, partly in section, showing a main part of another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

[0024] 1 to 3, a motor operation mechanism unit A of this embodiment is configured as a pump unit equipped with a pump 31. This motor operation mechanism unit A is used, for example, in combination with a filtration device (not shown) and a hot water supply device (not shown) to supply hot water to a heat exchanger provided in the filtration device and heat the water to be filtered. It can also be used for other purposes, such as supplying water to the hot water supply device, by combining it with the hot water supply device.

[0025] The motor operating mechanism unit A includes a housing 1, an operating mechanism section 3 housed within the housing 1, a control panel unit 4, and at least a pair of first and second engageable sections E1, E2.

[0026] The housing 1 includes a housing main body 1a, a front panel 1b, and a support plate 2. The housing main body 1a is a hollow, generally rectangular parallelepiped shape having a front opening 10, and includes a pair of left and right side plates 11a, 11b, a top plate 11c, a bottom plate 11d, and a back plate 11e. The front panel 1b is attached to the front of the housing main body 1a by means of screws or the like so as to close the front opening 10. This housing 1 is mounted on a desired location (such as a stand or a wall) by a so-called wall-mounting method. Specifically, as shown in Fig. 6, upper and lower brackets 50, 51 are attached to the upper and lower parts of the rear side of the housing 1, and the housing 1 is installed by fastening these brackets 50, 51 to the desired location with screws, etc.

[0027] The support plate 2 is for placing and supporting the operating mechanism part 3. As shown in Fig. 5, the support plate 2 has a flat plate part 20 extending in the left-right width direction of the housing 1, and front and rear bent pieces 21, 22 connected to the front and rear edges of the flat plate part 20 in a downwardly and upwardly bent state, respectively. Both ends 2a, 2b of the support plate 2 in the longitudinal direction (width direction of the housing 1) are connected via brackets 52a, 52b to a pair of left and right side plate portions 11a, 11b of the housing 1. As a result, the support plate 2 is formed into a substantially horizontal shelf shape spanning between the pair of side plate portions 11a, 11b at a midpoint in the vertical height direction within the housing 1. In addition, one or more longitudinal intermediate points of the rear bent piece portion 22 (corresponding to the rear portion of the support plate) on the rear side of the support plate 2 are connected to the rear plate portion 11e of the housing 1 via a bracket 52c. This connection aims to fix a rear portion of the middle part in the longitudinal direction of the support plate 2 and prevents this portion from bending downward due to the weight of the operating mechanism part 3. The multiple brackets 52a to 52c are attached to the housing 1 by means of spot welding, for example.

[0028] The operating mechanism 3 is, for example, configured such that a motor 30 is connected to the upper side of a pump 31, and is placed and fixed on a support plate 2. The operating mechanism 3 is a kind of vibration generating source. One ends of suction-side and discharge-side piping 6a, 6b are connected to the pump 31, and the other ends of these piping 6a, 6b are arranged to protrude downward from the bottom plate 11d of the housing 1, and a water inlet 60a and a water outlet 60b for the pump 31 are provided at the tips of the protruding parts. A part of the discharge-side piping 6b is located higher than the pump 31, and an air-water separator 67 and an automatic air bleed valve 68 are attached to this part.

[0029] The control panel unit 4 includes a plurality of control electric components 40 for controlling the operation mechanism section 3, a base member 41, and a cover body . The plurality of control electric components 40 are used to control the power supply to the motor 30, the rotation speed, and the like. The base member 41 is a member to which the multiple control electric components 40 are attached by means of screws or the like, and is, for example, in the form of a plate. Since the base member 41 receives a load from the operating mechanism 3 in a predetermined abnormal state, as described below, the base member 41 is required to have sufficient durability and strength to withstand such a load. The cover body 42 is for covering and protecting the multiple control electric components 40 in their entirety, and is made of, for example, transparent resin, and has a case shape capable of covering the multiple control electric components 40 in their entirety all at once. A slit 42a having an inverted Π shape when viewed from the front is provided in the front part of the cover body 42, and the inner area thereof is a lid portion 42b. As shown in FIG. 3, the lid portion 42b can be lifted upward toward the front side, and thus the location where the lid portion 42b was located in the front part of the cover body 42 becomes an opening portion 42c. A tool 99 such as a screwdriver can be inserted into the inside of the cover body 42 from the opening portion 42c to perform operations such as tightening various screw members.

[0030] The control panel unit 4 is fixed to the housing 1 so as to be placed on the bottom plate 11d, in front of the support plate 2 inside the housing 1. As shown in Fig. 2, the fixing means for the control panel unit 4 are brackets 53a, 53b fixed to the bottom plate 11d and the side plate 11b by spot welding or other means. The base member 41 of the control panel unit 4 is connected to the brackets 53a, 53b using screw members 90a, 90b such as screws (see also Fig. 6).

[0031] In this embodiment, two pairs of first and second engageable portions E1, E2 are provided, which engage with each other in abnormal situations described below to prevent the support plate 2 from descending significantly. The first engageable portion E1 is a portion including an opening 23 and its peripheral edge provided in the front bent piece portion 21 of the support plate 2. The opening 23 is a through hole that opens in a substantially horizontal direction. The second engageable portion E2 is a portion including a convex portion 45a provided in an upper region of the base member 41 of the control panel unit 4. This convex portion 45a protrudes substantially horizontally from the base member 41 toward the support plate 2 (see also FIG. 4). Preferably, this convex portion 45a is a shaft portion of a screw member 45 such as a screw that is screwed into a screw mounting hole portion 46 provided in the base member 41.

[0032] As shown in FIG. 6 and FIG. 7(a), the convex portion 45a is inserted into the opening 23. The convex portion 45a and the opening 23 are aligned so that their centers coincide with each other. Also, opening 23 is a so-called blind hole, which has a larger vertical width or diameter than convex portion 45a. Therefore, the peripheral portion of opening 23 and the outer periphery of convex portion 45a are not in contact with each other under normal conditions, and the peripheral portion of opening 23 and convex portion 45a (first and second engageable portions E1, E2) are not engaged with each other.

[0033] On the other hand, when the support plate 2 is bent downward during an abnormal state described later, the peripheral portion of the opening 23 comes into contact with the upper portion of the convex portion 45a, and they are in an engaged state (the engaged state of the first and second engageable portions E1, E2), as shown in Fig. 7(b). In such an engaged state, the convex portion 45a supports the peripheral portion of the opening 23, and the support plate 2 is prevented from being bent to a lower height.

[0034] According to the motor operation mechanism unit A described above, the following actions can be obtained.

[0035] When the motor operation mechanism unit A is transported, the motor operation mechanism unit A may be dropped due to carelessness. In this case, an unexpected load may be applied to the operation mechanism part 3 due to the impact of the drop, and the support plate 2 may bend downward. The rear part of the support plate 2 (the peripheral area of ​​the rear bent piece part 22) is connected to the back plate part 11e of the housing 1, so this part is unlikely to bend downward. However, the front part of the support plate 2 (the peripheral area of ​​the front bent piece part 21) may bend downward. In contrast, in an abnormal state in which the above-mentioned phenomenon occurs, the first and second engageable parts E1 and E2 (the peripheral part of the opening part 23 and the convex part 45a) engage with each other as shown in FIG. 7(b), and the support plate 2 is prevented from descending any further. Therefore, it is possible to appropriately prevent not only damage to the support plate 2 caused by a large downward bending deformation of the support plate 2, but also breakage or failure of each part of the operating mechanism part 3.

[0036] The prevention of the downward bending deformation of the support plate 2 in the abnormal state described above is achieved by utilizing the control panel unit 4, which is originally housed in the housing 1. Therefore, the configuration is rational. If a dedicated large-sized part were to be additionally provided as a means for preventing the downward bending deformation of the support plate 2 in the abnormal state, this would lead to an increase in weight and manufacturing costs, but according to this embodiment, there is no or almost no risk of this happening.

[0037] On the other hand, under normal circumstances, the first and second engageable parts E1, E2 (the peripheral part of the opening 23 and the convex part 45a) are in a non-engaged state as shown in Fig. 7(a). This prevents vibrations of the operating mechanism part 3 from being transmitted from the support plate 2 to the control panel unit 4 via the first and second engageable parts E1, E2. This makes it possible to prevent problems such as the screw fastening of the control electric parts 40 of the control panel unit 4 loosening due to vibrations, resulting in a poor mounting condition.

[0038] In this embodiment, the first engageable part E1 has a simple configuration in which an opening 23 as a so-called blind hole is provided in the bent piece part 21 on the front side of the support plate 2. The second engageable part E2 has a simple configuration including a convex part 45a inserted into the opening 23, and this convex part 45a is formed by screwing a screw member 45 such as a screw into the base member 41 of the control panel unit 4. Therefore, the first and second engageable parts E1 and E2 are easy to manufacture, and an increase in manufacturing costs can be suppressed. Furthermore, by inserting the convex portion 45a into the opening 23 as a clearance hole, it is possible not only to prevent the support plate 2 from descending beyond a predetermined level, but also to prevent it from rising to a height above a predetermined level.

[0039] The motor operation mechanism unit A of this embodiment further includes the following configuration for improving the strength of the housing 1 and for enhancing vibration isolation performance.

[0040] 1, 2, and 8, a reinforcing plate 18 is provided in the front regions of the left and right corners on the upper side of the housing 1. This reinforcing plate 18 has a reinforcing plate main body 18a having a generally triangular shape when viewed from the front, and bent flange portions 18b, 18c connected to the upper and side portions thereof, and the bent flange portions 18b, 18c are attached to the housing 1 by spot welding to the upper plate portion 11c and the side plate portions 11a, 11b of the housing 1, for example. With this configuration, the strength of the upper left and right corners of the housing 1 can be effectively increased.

[0041] 9, the lower bracket 51 used for mounting the motor operation mechanism unit A at a desired location is fastened to the bottom plate portion 11d of the housing 1 by means of a screw member 91. However, this fastening is performed with a vibration-isolating member 7a such as a vibration-isolating rubber interposed therebetween. With this configuration, it is possible to prevent vibrations from the operating mechanism 3 from being transmitted to the mounting location of the motor operating mechanism unit A via the housing 1 and the lower bracket 51. Although not shown in the drawings, preferably, the upper bracket 50 is also made of anti-vibration rubber in the same manner as described above.

[0042] 10, the motor 30 is fixed and held on the back plate 11e of the housing 1 by using a clamp member 19 that is generally U-shaped in plan view. However, a vibration-proof member 7b is interposed between the clamp member 19 and the motor 30. In addition, a protruding piece 19a that protrudes toward the motor 30 is provided on the back plate 11e, and a vibration-proof member 7c is also interposed between this protruding piece 19a and the motor 30. According to such a configuration, the motor 30 can be stably supported, while the transmission of vibrations from the motor 30 to the housing 1 can be suppressed.

[0043] As shown in Fig. 11, a piping bracket 8b for fixing the piping section 6b to the side plate section 11b is attached to the side plate section 11b of the housing 1. The piping bracket 8b has a clamp section 80 that combines a pair of flat and U-shaped clamp members 80a, 80b, and is capable of holding the piping section 6b. However, the clamp section 80 is provided with a vibration-proof member 7d, and the vibration-proof member 7d is adapted to come into contact with the outer peripheral surface of the piping section 6b. The clamp portion 80 is attached to a base member 81 via a screw member 92 and a vibration isolating member 7e. The base member 81 is attached to an attachment member 82, which is spot welded to the side plate portion 11b of the housing 1, via the screw member 92. According to such a configuration, the positioning of the pipe section 6b can be appropriately maintained, and in addition, the transmission of vibrations from the pipe section 6b to the housing 1 can be suppressed. In addition, the motor operating mechanism unit A is also provided with a piping bracket 8a for fixing the piping section 6a shown in Figures 1 and 2 to the side plate section 11a, and preferably, the configuration thereof is similar to the above-mentioned configuration of the piping bracket 8b.

[0044] As shown in Fig. 12, a piping bracket 8c for fixing the piping section 6b to the back plate section 11e is attached to the back plate section 11e of the housing 1. The piping bracket 8c has a clamp member 84 having a shape of a Ω in a plan view. The clamp member 84 is attached to a mounting piece 85 fixed to the back plate section 11e of the housing 1 by spot welding or the like, using a screw member 93. However, the clamp member 84 is provided with vibration-proof members 7f and 7g that come into contact with the outer peripheral surface of the piping section 6b. In addition, a vibration-proof member 7h is also interposed between the head of the screw member 93 and the mounting piece 85. According to this configuration, the piping portion 6b can be fixed to the back plate portion 11e, and the piping portion Therefore, the transmission of vibration from the upper plate 6b to the back plate portion 11e can be suppressed.

[0045] 13 shows another embodiment of the present invention. In these figures, elements that are the same as or similar to those in the above embodiment are given the same reference numerals as in the above embodiment, and duplicated explanations will be omitted.

[0046] In the configuration shown in FIG. 13(a), the opening 23a (the opening 23a constituting the first engageable portion E1) provided in the front bent piece portion 21 of the support plate 2 is a partially notched opening. In the configuration shown in Fig. 2(b), the convex portion 45a constituting the second engageable portion E2 is a bar-shaped portion with a non-circular cross section whose tip is bent upward (it may be non-bent). The convex portion 45a is not formed using a screw member. In addition, the first engageable portion E1 is not a region including the opening, but a portion of the front bent piece portion 21 of the support plate 2 that is located directly above the convex portion 45a, that is, a portion that comes into contact with and engages with the convex portion 45a when the support plate 2 is bent downward. In any of these configurations, the first and second engageable portions E1, E2 can be kept in a disengaged state under normal circumstances, and in an engaged state under non-normal circumstances when the support plate 2 is bent downward, thereby achieving the function intended by the present invention.

[0047] The present invention is not limited to the above-described embodiment, and the specific configuration of each part of the motor operation mechanism unit according to the present invention can be freely designed and modified in various ways within the intended scope of the present invention.

[0048] In the above-described embodiment, the first engageable portion E1 provided on the support plate 2 includes the formation area of ​​the opening 23, and the second engageable portion E2 provided on the control panel unit 4 includes the convex portion 45a, but the present invention is not limited to this, and their positions can be reversed. That is, the first engageable portion E1 of the support plate 2 can include the convex portion 45a, and the second engageable portion E2 of the control panel unit 4 can include the formation area of ​​the opening 23. As can be understood from the embodiment shown in Fig. 13, the first and second engageable parts are not necessarily limited to a combination of an opening and a convex part inserted into the opening. In addition, when a combination of an opening and a convex part is adopted, the specific shapes and sizes of the opening and the convex part can be changed in various ways. The first and second engageable parts need only be provided in at least one pair, and the specific number thereof is not limited.

[0049] The operating mechanism is not limited to a combination of a motor and a pump. The object to be driven by the motor may be, for example, a compressor or a fan instead of or in addition to a pump, and the type of the object is not important. The type of motor is also not important. Therefore, the specific type of control electrical components provided in the control panel unit is not limited. [Explanation of symbols]

[0050] A Motor operating mechanism unit E1, E2 First and second engageable portions 1 Case 11a,11d Side plate part 11c Upper plate 11d Bottom plate part 11e Back plate part 2 Support plate 21 Front bent piece (front part of support plate) 23 Opening (first engageable part) 3 Operating mechanism section 30 Motor 31 Pump (Driven object) 4 Control Panel Unit 40 Electrical control components 45a Convex part (second engageable part) 45 Screw material

Claims

1. an operating mechanism including a motor and an object to be driven by the motor; a housing that houses the operating mechanism; a support plate provided in a shelf-like shape at a middle position in the vertical direction within the housing and supporting the operating mechanism; a control panel unit having electrical components for controlling the operating mechanism and attached to a location within the housing different from the operating mechanism and the support plate; A motor operating mechanism unit comprising: The control panel unit further includes a first and a second engageable portion provided on the support plate and the control panel unit, respectively. This motor operating mechanism unit is characterized in that the first and second engageable portions engage with each other to prevent the support plate from descending further than a predetermined height during abnormal times when a sudden load acts on the operating mechanism portion and causes the support plate to bend and deform downward from its normal position, while being in a disengaged state during normal times when the above-mentioned phenomenon does not occur.

2. 2. The motor operating mechanism unit according to claim 1, A motor operating mechanism unit, wherein the first and second engageable portions are overlapping portions spaced apart in the vertical height direction during the normal state, and during the non-normal state, the first engageable portion descends as the support plate flexes downward and comes into contact with the second engageable portion, and is supported by the second engageable portion.

3. 2. The motor operating mechanism unit according to claim 1, one of the first and second engageable portions includes a peripheral portion of an opening that opens in a substantially horizontal direction, and the other includes a convex portion that extends in a substantially horizontal direction and is inserted into the opening, and the opening has a vertical width or a diameter larger than that of the convex portion; A motor operating mechanism unit, wherein the peripheral portion of the opening and the convex portion are configured to be in a non-contact, non-engaged state with respect to each other under normal conditions, while being in an abutting, engaged state with respect to each other under non-normal conditions.

4. 4. The motor operating mechanism unit according to claim 3, A motor operating mechanism unit, wherein the convex portion is configured using a screw member that is screwed into the support plate or the control panel unit.

5. 4. The motor operating mechanism unit according to claim 3, A motor operating mechanism unit, wherein the support plate has a bent piece portion in which an edge of the support plate is bent so as to stand up in the vertical height direction, and the opening is provided in this bent piece portion.

6. 6. The motor operating mechanism unit according to claim 1, the housing includes a hollow, generally rectangular parallelepiped housing main body having a pair of left and right side plate portions, a top plate portion, a bottom plate portion, and a back plate portion, and forming a front opening portion that can be closed by a front panel; The support plate has both longitudinal ends connected to the pair of side plate portions and bridged between the pair of side plate portions, and a rearward portion at a midpoint in the longitudinal direction of the support plate is connected to the back plate portion, The control panel unit has a base member on which the control electrical components are attached, and the base member is disposed on the bottom plate portion so as to approach a front portion of the longitudinal middle portion of the support plate. and fixed to at least one of the pair of side plate portions, the first and second engageable portions are provided on the front portion of the support plate and the base member of the control panel unit, respectively.

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