Operating equipment

By providing slits in the baseboard of the operating equipment and passing the resin part through the slits to cover the electronic components, the gap problem caused by thermal shrinkage of the resin part is solved, achieving higher waterproofness and dustproofness, and ensuring the reliability of the equipment.

CN114352567BActive Publication Date: 2025-09-12MAKITA CORP
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Patent Information

Application Number
CN202111113490.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-10-12
Filing Date
2021-09-23
Publication Date
2025-09-12
Estimated Expiration
2041-09-23

AI Technical Summary

Technical Problem

In existing operating equipment, due to the thermal shrinkage of the resin component, a gap is formed between the substrate and the resin component, which allows liquid and dust to easily enter, affecting the waterproof and dustproof properties.

Method used

A slit is provided between the area on the substrate where electronic components are mounted and the area on the substrate where no electronic components are mounted, and a resin component is passed through the slit to cover a part of the electronic component and the surface of the substrate, and the resin component is directly bonded to the bonding part without a protective layer to form an integrally formed structure.

Benefits of technology

It effectively reduces the exposure of the boundary between the resin parts and the substrate, improves the waterproofness and dustproofness of the operating equipment, and ensures the reliability and durability of the electronic components.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides an operating device with improved waterproofness and dustproofness. The operating device includes a substrate, at least one electronic component, at least one slit, and a resin component. The substrate has a first region, a second region, and a third region located at the boundary between the first region and the second region. The first region, the second region, and the third region each have a first surface and a second surface. At least one electronic component is mounted on the first region. At least one slit is provided in the third region and has a predetermined shape. The resin component is integrally formed to penetrate at least one slit and cover a portion of at least one electronic component, the first surface of the first region, and the second surface.
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Description

Technical Field

[0001] The present disclosure relates to work equipment. Background Art

[0002] The operating device described in Patent Document 1 includes a display unit comprising a substrate, an LED, a lens covering the LED, and wires for supplying power to the LED. The LED and lens are located on the substrate's surface, while the wires are located on the substrate's back. Furthermore, the lens and wires are covered by an integrally molded resin component. This prevents liquid from seeping into the lens, improving its waterproofness.

[0003] Patent Document 1: Japanese Patent Application Laid-Open No. 2020-93343

[0004] Integrally molded resin components are formed by injecting resin into a mold that holds a substrate and then curing the injected resin. The portion of the substrate that holds the substrate within the mold is not covered by the resin component. Consequently, portions of the substrate protrude from the resin component. Thermal contraction of the resin component can sometimes create gaps between the substrate and the resin component at the boundary between the protruding portion and the covered portion. If these gaps are significant, liquids and dust could enter the covered portion. Summary of the Invention

[0005] One aspect of the present disclosure provides a working device having improved waterproofness and dustproofness.

[0006] One aspect of the present disclosure is a work device comprising a substrate, at least one electronic component, at least one slit, and a resin component. The substrate comprises a first region, a second region, and a third region located at a boundary between the first and second regions. The first, second, and third regions each comprise a first surface and a second surface. At least one electronic component is mounted on the first region. At least one slit is provided in the third region and has a predetermined shape. The resin component is integrally formed to penetrate the at least one slit and cover a portion of the at least one electronic component, the first surface of the first region, and the second surface.

[0007] In one aspect of the present disclosure, a work device is provided with a slit at the boundary between a first region of a substrate, where at least one electronic component is mounted, and a second region, where no electronic component is mounted. Furthermore, a resin component extends through the slit, covering a portion of the at least one electronic component, the first surface of the first region, and the second surface. Because the resin component extends through the slit, the boundary between the covered portion formed by the resin component and the substrate is reduced. Consequently, a work device with improved waterproofing and dustproofing can be achieved.

[0008] Alternatively, the predetermined shape may be a semicircular arc shape.

[0009] The slit is formed in a semicircular arc shape, so that the second area can be effectively utilized to provide a screw hole or the like.

[0010] Furthermore, at least one screw hole may be formed in the second region. The predetermined shape may be a semicircular arc centered on one of the at least one screw hole.

[0011] The slit is formed in a semicircular arc shape centered on the screw hole. Therefore, when the substrate whose first area is covered with the resin member is screwed to another member, the resin member does not interfere, and the screwing operation can be performed smoothly.

[0012] Furthermore, at least one adhesive portion may be provided in the third region. The resin member may be bonded to the at least one adhesive portion without a protective layer interposed therebetween.

[0013] The resin member is bonded to the bonding portion provided at the boundary between the first region and the second region without the protective layer interposed therebetween. Therefore, the adhesion between the resin member and the bonding portion is improved, and the intrusion of liquid and dust into the first region can be further suppressed.

[0014] Furthermore, a conductive wire may be provided. The conductive wire is electrically connected to the electronic component and is partially covered by the resin component. The first region may also have an end portion that is not in contact with the third region. The conductive wire may protrude from the resin component at the end portion.

[0015] The wire is partially covered with the resin member along with the first area, and protrudes from the resin member at the end of the first area that is not in contact with the third area. This prevents liquid and dust from entering the first area and allows the wire to be led out of the first area.

[0016] [Project 1]

[0017] An operating device has:

[0018] A substrate comprising a first region, a second region, and a third region located at a boundary between the first region and the second region, wherein the first region, the second region, and the third region each have a first surface and a second surface, and the protective layer on the first surface of at least the third region is removed;

[0019] at least one electronic component mounted on the first surface of the first region; and

[0020] The resin component includes a resin adhesive portion adhered to the third region and is integrally molded so as to cover a portion of the at least one electronic component, the first surface of the first region, and the second surface.

[0021] The operating equipment according to another aspect of the present disclosure has a substrate having a third area on the first surface, where the protective layer has been removed, at the boundary between the first area and the second area. Furthermore, the resin component covers a portion of at least one electronic component and the first and second surfaces of the first area, and is bonded to the third area, where the protective layer has been removed, between the first and second areas of the first surface. As a result, the adhesion between the resin component and the substrate is improved at the end portion of the resin component adjacent to the second area of ​​the first surface, thereby suppressing the entry of liquid and dust into at least one electronic component. Furthermore, an operating equipment with improved waterproof and dustproof properties can be realized.

[0022] [Project 2]

[0023] The operating equipment according to item 1, wherein:

[0024] The third region includes an arc portion having a semicircular arc shape.

[0025] The third area includes the arc portion, so that the second area can be effectively utilized to provide a screw hole or the like.

[0026] [Item 3]

[0027] The operating equipment according to item 2, wherein:

[0028] The working device includes at least one threaded hole formed in the second area.

[0029] The center of the semicircular arc corresponds to a threaded hole in the at least one threaded hole.

[0030] The center of the semicircular arc corresponds to one of the screw holes. Therefore, when the substrate with the first area covered by the resin member is screwed to another member, the resin member does not get in the way and the screwing operation can be performed smoothly.

[0031] [Item 4]

[0032] The operating equipment according to item 2 or 3, wherein:

[0033] The arc portion includes a first end and a second end,

[0034] The third region further includes two quadrilateral portions each extending from the first end portion and the second end portion to an end portion of the substrate.

[0035] The third region includes two quadrilateral portions, thereby further suppressing the entry of liquid and dust from the end portion of the substrate into the interior of the resin member.

[0036] [Item 5]

[0037] The operating equipment according to item 4, wherein:

[0038] The length directions of the two quadrilateral portions are consistent with the length direction of the substrate.

[0039] Facilitates substrate design.

[0040] [Item 6]

[0041] The working equipment according to item 4 or 5, wherein:

[0042] The resin bonding portion includes a first resin bonding portion bonded to the arc portion and a second resin bonding portion bonded to each of the two quadrilateral portions.

[0043] The first resin adhesive portion and the second resin adhesive portion are respectively formed along edges of the resin member.

[0044] The first resin adhesive portion and the second resin adhesive portion are each formed along the edge of the resin member, thereby appropriately suppressing the entry of liquid and dust from the second region into the interior of the resin member.

[0045] [Item 7]

[0046] The working equipment according to any one of items 1 to 6, wherein:

[0047] The working device includes a conductive wire electrically connected to the electronic component, and a portion of the conductive wire is covered by the resin component.

[0048] The first region has an end portion that is not in contact with the third region,

[0049] The lead wire protrudes from the resin member on the end portion side.

[0050] The lead wire is partially covered with the resin component along with the first area, and protrudes from the resin component at the end of the first area that is not in contact with the third area. This prevents liquid and dust from entering the resin component and allows the lead wire to be led out from the first area. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a perspective view showing the appearance of the backpack blower according to the first embodiment.

[0052] Figure 2 It is a perspective view showing the operating portion of the backpack blower according to the first embodiment.

[0053] Figure 3 This is a plan view showing a first area, a second area, and a third area on the first surface of the substrate in the operation unit of the first embodiment.

[0054] Figure 4 It is a plan view showing a first area, a second area, and a third area on the second surface of the substrate in the operation unit of the first embodiment.

[0055] Figure 5 This is a plan view showing the first surface of a substrate in which a main power switch and a display unit are mounted in a first region according to the first embodiment.

[0056] Figure 6 This is a plan view showing the second surface of the substrate in which the lead wires are connected to the first region according to the first embodiment.

[0057] Figure 7 This is a perspective view showing a substrate in which a main power switch, a display unit, and lead wires are connected in a first area according to the first embodiment.

[0058] Figure 8 This is a plan view showing the first surface of the substrate in which the first region is covered with a resin member according to the first embodiment.

[0059] Figure 9 This is a plan view showing the second surface of the substrate in which the first region is covered with a resin member according to the first embodiment.

[0060] Figure 10 This is a perspective view showing a substrate in which the first region is covered with a resin member according to the first embodiment.

[0061] Figure 11 This is a perspective view showing a substrate whose first area is covered with a resin member and screws inserted into screw holes of the substrate according to the first embodiment.

[0062] Figure 12 This is a plan view showing the first surface of a substrate in which a main power switch and a display unit are mounted in a first region according to a second embodiment.

[0063] Figure 13 This is a plan view showing the first surface of a substrate in which the first region is covered with a resin member and the resin member is bonded to the third region according to the second embodiment. DETAILED DESCRIPTION

[0064] (First embodiment)

[0065] Hereinafter, embodiments for implementing the present disclosure will be described with reference to the drawings.

[0066] <1-1. Overall Structure>

[0067] First, refer to Figure 1 The overall structure of the working equipment of this embodiment will be described. In this embodiment, a backpack blower (hereinafter referred to as a blower) 2 will be described as an example of the working equipment.

[0068] The blower 2 includes a blower body 6 , a back frame 4 , a duct 8 , and a battery pack 90 .

[0069] The shoulder pad 4a and the belt 4b are attached to the back frame 4. The shoulder pad 4a is placed on the shoulders of the user. The belt 4b is attached to the shoulder pad 4a and is configured to be adjustable in length to suit the user.

[0070] The blower body 6 is fixed to the back frame 4 via a vibration absorbing spring. Two fans (not shown) and two motors for driving the two fans are housed in the blower body 6. The two fans blow air in the same direction.

[0071] A battery pack 90 is fixed to the back frame 4 below the blower body 6. A controller (not shown) is also fixed to the back frame 4. The battery pack 90 supplies power to the controller, the two motors, and the operating unit 30, described later. The controller controls the operation of the two motors housed in the blower body 6 based on signals from the operating unit 30 and various switches.

[0072] The blower body 6 is also provided with a tube mounting portion 7. The tube mounting portion 7 is positioned to the user's right side when the user is carrying the backpack 4. A tube 8 is mounted on the tube mounting portion 7. The two fans housed in the blower body 6 draw in outside air and exhaust it in the same direction through the tube mounting portion 7.

[0073] The tube 8 includes a first tube 8a, a second tube 8b, a third tube 8c, a fourth tube 8d, and a fifth tube 8e. The first tube 8a is L-shaped and is detachably mounted on the tube mounting portion 7. The second tube 8b is corrugated and connected to the first tube 8a. The third tube 8c is linear and connected to the second tube 8b. The third tube 8c is connected to either the fourth tube 8d or the fifth tube 8e. The fourth tube 8d is linear. The fifth tube 8e is linear and has a small-diameter outlet 9 at its tip. The fifth tube 8e can also be connected to the tip of the fourth tube 8d.

[0074] Furthermore, a handle 20 for the user to grip is attached to the third tube 8c. The handle 20 is provided with various switches, a lock button 26, and an operating unit 30 for the user to operate by gripping the handle 20.

[0075] The various switches include a trigger switch 22 and a dial switch 24. The trigger switch 22 is a switch for adjusting the air discharge volume of the blower 2. The dial switch 24 is a switch for setting the maximum discharge volume that can be adjusted by operating the trigger switch 22. The lock button 26 is a button for holding the trigger switch 22 in the position where the trigger switch 22 is pulled to the maximum. By pressing the lock button 26, the trigger switch 22 is fixed in the position where the trigger switch 22 is pulled to the maximum. The operating unit 30 is provided with a main power switch 41 and a display unit 42, which will be described later. The main power switch 41 is a switch for starting the blower 2. The display unit 42 reports the start-up status of the blower 2 by lighting the LED 42a, which will be described later. The trigger switch 22, the dial switch 24, the lock button 26, the main power switch 41, and the display unit 42 are connected to the controller via a cable 32.

[0076] <1-2. Operation Unit Structure>

[0077] Next, refer to Figures 2 to 11 The detailed structure of the operating unit 30 will be described. Figure 2 As shown in FIG, the operation portion 30 has a substantially rectangular parallelepiped shape. In this embodiment, the longitudinal direction of the operation portion 30 is referred to as the front-back direction, the width direction is referred to as the left-right direction, and the height direction is referred to as the up-down direction.

[0078] The operation portion 30 includes a cover 35 and a main body 40 .

[0079] The cover 35 is made of resin and includes an upper surface portion 38, a wall portion 37, a flange portion 33 and two retaining portions 36. The upper surface portion 38 is configured to be roughly rectangular. The upper surface portion 38 includes an operating member 31 and a window 34. The operating member 31 is provided on the front side of the upper surface portion 38. The operating member 31 includes a circular component and a rectangular component. The first end of the rectangular component is connected to the upper surface portion 38, and the second end opposite to the first end is connected to the circular component. A gap is formed between the portion of the outer periphery of the operating member 31 other than the above-mentioned first end and the upper surface portion 38. That is, the operating member 31 is configured to be displaceable in the up and down directions relative to the upper surface portion 38 with the first end as the center. The window 34 is a quadrilateral hole provided on the rear side of the upper surface portion 38.

[0080] The wall portion 37 surrounds the upper surface portion 38 from all sides and protrudes above the upper surface portion 38. The flange portion 33 protrudes from the lower end of the wall portion 37 in the front-to-back direction and the left-to-right direction. Two retaining portions 36 protrude downward from the lower surface of the flange portion 33. The two retaining portions 36 include a right retaining portion and a left retaining portion. The right retaining portion extends in the front-to-back direction along the right end portion of the flange portion 33. The front and rear ends of the right retaining portion are bent toward the left. The left retaining portion extends in the front-to-back direction along the left end portion of the flange portion 33. The front and rear ends of the left retaining portion are bent toward the right.

[0081] like Figure 10 As shown, the main body 40 has a substantially rectangular parallelepiped shape and is disposed below the flange 33 and is held by two holding portions 36. That is, the right end of the main body 40 is held by the right holding portion, and the left end of the main body 40 is held by the left holding portion.

[0082] The main body 40 includes a substrate 70 , a main power switch 41 , a display 42 , and a resin member 60 .

[0083] The substrate 70 is a printed circuit board. Figure 3 As shown in Figures 4 and 5, substrate 70 is a cross-shaped structure comprising a rectangular portion, a right quadrilateral portion, and a left quadrilateral portion. The rectangular portion, the right quadrilateral portion, and the left quadrilateral portion are quadrilaterals that are elongated in the front-to-back direction. The right quadrilateral portion is connected to the right end of the rectangular portion, and the left quadrilateral portion is connected to the left end of the rectangular portion. Furthermore, substrate 70 has a first surface 71 and a second surface 72.

[0084] The first surface 71 and the second surface 72 have a first area A1, a second area A2, and a third area A3. The first area A1 corresponds to Figure 3 and Figure 4 The area enclosed by the dotted line in FIG. 1 corresponds to the rectangular portion of the substrate 70. The second area A2 corresponds to Figure 3 and Figure 4 The areas enclosed by the dashed lines in the figure correspond to the right and left quadrilateral portions of substrate 70. That is, second area A2 encompasses both the right and left areas of first area A1. Third area A3 is located at the boundary between first area A1 and second area A2. That is, third area A3 encompasses both the right and left areas of first area A1.

[0085] The first area A1 corresponds to an area covered by the resin member 60 and in which the main power switch 41 and the display unit 42 are mounted. The main power switch 41 and the display unit 42 correspond to the electronic components of the present disclosure. Figure 4 As shown, a first adhesive portion 76 is provided on the rear side of the second surface 72 in the first area A1. The first adhesive portion 76 has a ring shape. The protective layer is peeled off from the first adhesive portion 76, and the first adhesive portion 76 is not covered by the protective layer.

[0086] In the second area A2, no components are mounted on the substrate 70; the second area A2 corresponds to the area not covered by the resin member 60. Screw holes 73 are provided in the left and right areas of the second area A2. The screw holes 73 are circular holes that penetrate the substrate 70. The two screw holes 73 are located at the same position in the front-to-back direction.

[0087] Slits 74 extending through the substrate 70 are provided in the left and right regions of the third area A3. Each slit 74 has a semicircular arc shape centered on the threaded hole 73. A semicircular arc is an arc whose length is half the circumference of a circle. Specifically, the slit 74 provided in the right region of the third area A3 is formed with its arc on the left and its chord on the right. The slit 74 provided in the left region of the third area A3 is formed with its arc on the right and its chord on the left. Both slits 74 are positioned at the same position in the front-to-back direction.

[0088] In addition, if Figure 3 As shown, two second adhesive portions 75 are provided on the first surface 71 of each of the left and right areas included in the third area A3. Each second adhesive portion 75 has a quadrilateral shape having approximately the same width as the slit 74. A second adhesive portion 75 extending rearward from the rear end of each slit 74 and a second adhesive portion 75 extending forward from the front end of each slit 74 are provided on the first surface 71 of the third area A3.

[0089] Likewise, if Figure 4 As shown, the second surfaces 72 of the left and right areas included in the third area A3 are provided with second adhesive portions 75 extending rearward from the rear ends of the slits 74 relative to the respective slits 74, and second adhesive portions 75 extending forward from the slits 74. The positions of the four second adhesive portions 75 provided on the first surface 71 correspond to the positions of the four second adhesive portions 75 provided on the second surface 72.

[0090] Similar to the first adhesive portion 76, the protective layer is removed from the second adhesive portion 75, leaving it uncovered. The first surface 71, excluding the second adhesive portion 75, is covered with the protective layer. Furthermore, the second surface 72, excluding the first and second adhesive portions 76 and 75, is covered with the protective layer.

[0091] like Figure 5 and Figure 7 As shown, the main power switch 41 and the display unit 42 are mounted on the first surface 71 of the first area A1. The main power switch 41 is located approximately in the center of the first area A1. Specifically, it is located between the two slits 74. The display unit 42 is located on the rear side of the first area A1.

[0092] The main power switch 41 is a tact switch comprising a cylindrical button 41a and a rectangular base 41b. The button 41a and base 41b are made of a resin material such as a liquid crystal polymer. The main power switch 41 is not limited to a tact switch; any switch capable of being mounted on the substrate 70 may be a membrane switch, a rotary switch, a dip switch, or the like.

[0093] The button 41a is mounted on the upper surface of the base 41b so as to be displaceable in the vertical direction. When the main body 40 is mounted on the cover 35, the button 41a is positioned directly below the circular member of the operating element 31. When the user presses the circular member, the circular member and the button 41a move downward. When the user releases the circular member, the circular member and the button 41a move upward and return to their original position.

[0094] Display unit 42 includes LED 42a and lens 42b. Lens 42b is a cube with an open bottom surface. Lens 42b is a transparent lens that transmits light emitted by LED 42a. The term "transparent lens" here refers to a lens that transmits light, regardless of whether the lens is colored. This includes not only colorless and transparent lenses, but also lenses that transmit colored light. Lens 42b houses LED 42a within its internal space, surrounding LED 42a.

[0095] like Figure 6 As shown, five wires 50 are connected to the second surface 72 of the first area A1. The five wires 50 include a wire for transmitting signals from the main power switch 41 and a wire for supplying power to the LED 42a. Each wire 50 includes a covering portion 51 and a core portion 52. The core portion 52 is a metal core wire exposed by removing the covering of the wire, and is soldered to the second surface 72 by soldering. The core portion 52 is connected to the terminals of the main power switch 41 and the LED 42a via copper foil, solder, and copper-plated through-holes provided on the second surface 72. Among them, on the second surface 72 of the first area A1, the first adhesive portion 76 is provided at a position corresponding to the display portion 42.

[0096] The substrate 70, to which the main power switch 41, display unit 42, and lead wires 50 are connected, is placed in the mold and held. The mold holds the substrate 70 by clamping the second area A2 and supporting the circular portion inside the first adhesive portion 76 from below. Resin is then injected into the mold and thermally cured to form the integrally molded resin component 60.

[0097] Therefore, if Figure 8 and Figure 9 As shown, the second area A2 and the circular portion inside the first adhesive portion 76 are not covered by the resin member 60. The resin member 60 covers the first area A1, the main power switch 41, the display unit 42, and a portion of the lead wire 50.

[0098] like Figure 8 and Figure 9 As shown, the resin member 60 includes a first covering portion 61, a second covering portion 62, a third covering portion 63, a fourth covering portion 64, and a fifth covering portion 65. The resin member 60 is made of a resin material such as polyamide.

[0099] The first covering portion 61 covers the portion of the first area A1 of the first surface 71 that is not equipped with the main power switch 41 and the display portion 42, and the four second adhesive portions 75. The second covering portion 62 covers the main power switch 41 on all sides. The lower end of the second covering portion 62 is connected to the first covering portion 61. Figure 10 As shown, the second covering portion 62 covers the side surfaces and the edge of the upper surface of the base portion 41 b , but does not cover the button 41 a .

[0100] The third covering portion 63 covers the side surfaces and edges of the top surface of the lens 42b, but does not cover the center portion of the top surface of the lens 42b. The lower end of the third covering portion 63 is connected to the first covering portion 61. Furthermore, when the main body 40 is attached to the cover 35, the center portion of the top surface of the lens 42b is positioned directly below the window 34. Therefore, light emitted from the LED 42a propagates from the center portion of the top surface of the lens 42b.

[0101] The fifth covering portion 65 covers the first area A1 of the second surface 72, excluding the inner side of the first adhesive portion 76, and the four second adhesive portions 75. The first adhesive portion 76 is covered by the fifth covering portion 65. At the front end of the first area A1, the front end of the first covering portion 61 is connected to the front end of the fifth covering portion 65. Furthermore, the lead wire 50 protrudes forward from the front end of the fifth covering portion 65. Furthermore, at the rear end of the first area A1, the rear end of the first covering portion 61 is connected to the rear end of the fifth covering portion 65.

[0102] Furthermore, at the right end of the first area A1, the right end of the first covering portion 61 is connected to the right end of the fifth covering portion 65. Furthermore, at the left end of the first area A1, the left end of the first covering portion 61 is connected to the left end of the fifth covering portion 65.

[0103] The fourth covering portion 64 vertically penetrates the two slits 74 and connects the first covering portion 61, the second covering portion 62, and the fifth covering portion 65. Therefore, the end portion of the first area A1 is completely covered by the resin member 60 and is not exposed.

[0104] Except for the first bonding portion 76 and the second bonding portion 75, the resin member 60 is continuous, and the boundary between the covering portion formed by the resin member 60 and the substrate 70 is not exposed. In the first bonding portion 76 and the second bonding portion 75, since the resin member 60 is not connected to the resin member 60 in other locations, the boundary between the covering portion formed by the resin member 60 and the substrate 70 is exposed.

[0105] If the resin component 60 shrinks due to thermal curing, a gap may be generated between the resin component 60 and the substrate 70. When a gap is generated between the resin component 60 and the substrate 70 at the first adhesive portion 76 and the second adhesive portion 75, the gap is exposed and becomes an inlet for liquid and dust. In addition, the resin material constituting the main power switch 41 is different from the resin material of the resin component 60 and has a different thermal shrinkage rate. Therefore, due to the thermal curing of the resin component 60, a gap may also be generated between the resin component 60 and the main power switch 41, and liquid and dust entering through the inlet may enter the interior of the main power switch 41. If liquid or dust enters the interior of the main power switch 41, the main power switch 41 may malfunction, resulting in an inability to start the blower 2.

[0106] In this embodiment, the resin member 60 is bonded to the first bonding portion 76 and the second bonding portion 75 without a protective layer. Therefore, the adhesion between the resin member 60 and the first bonding portion 76 and the second bonding portion 75 is improved, and a gap is less likely to be generated between the resin member 60 and the substrate 70.

[0107] In addition, in the present embodiment, a slit 74 is provided at the boundary between the first area A1 and the second area A2, and the resin component 60 passes through the slit 74. That is, by providing the slit 74, the exposure of the boundary between the covering portion formed by the resin component 60 and the substrate 70 is reduced. In the absence of the slit 74, the first covering portion 61 and the second covering portion 62 are not connected to the fifth covering portion 65 at the location where the slit 74 should be. Therefore, at the location of the slit 74, the boundary between the covering portion formed by the resin component 60 and the substrate 70 is exposed. Furthermore, the location of the slit 74 becomes an inlet for liquid and dust. In the present embodiment, by providing the slit 74, the exposure of the boundary between the covering portion formed by the resin component 60 and the substrate 70 is reduced, thereby improving the waterproofness and dustproofness of the main body 40.

[0108] The main body 40 is mounted on the cover 35 to form the operating unit 30. Figure 11 As shown, the main body 40 is mounted on the cover 35 using self-tapping screws 80 inserted into the two threaded holes 73 .

[0109] <1-3. Effect>

[0110] According to the first embodiment described above, the following effects can be obtained.

[0111] (1) A slit 74 is provided at the boundary between the first area A1 of the substrate 70, where the main power switch 41 and the display unit 42 are mounted, and the second area A2, where no electronic components are mounted. Furthermore, the resin member 60 penetrates the slit 74 and covers the first and second surfaces 71, 72 of the first area A1, as well as portions of the main power switch 41 and the display unit 42. Since the resin member 60 penetrates the slit 74, the boundary between the covered portion formed by the resin member 60 and the substrate 70 is prevented from being exposed. Consequently, the waterproof and dustproof properties of the operating unit 30 can be improved.

[0112] (2) The slit 74 is formed in a semicircular arc shape, so that the second area A2 can be effectively utilized to provide the screw hole 73 .

[0113] (3) The slit 74 is formed in a semicircular arc shape centered on the screw hole 73 . Therefore, when the main body 40 is screwed to the cover 35 , the resin member 60 does not interfere, and the screwing operation can be performed smoothly.

[0114] (4) The resin member 60 is bonded to the second bonding portion 75 provided at the boundary between the first area A1 and the second area A2 without a protective layer interposed therebetween. Therefore, the adhesion between the resin member 60 and the second bonding portion 75 is improved, and the intrusion of liquid and dust into the first area A1 can be further suppressed.

[0115] (5) The conductive wire 50 is partially covered with the resin member 60 along with the first area A1, and the conductive wire 50 protrudes from the resin member 60 at the distal end of the first area A1 that is not in contact with the third area A3. Therefore, the conductive wire 50 can be pulled out from the first area A1 while preventing liquid and dust from entering the first area A1.

[0116] (Second embodiment)

[0117] <2-1. Differences from the First Embodiment>

[0118] The basic structure of the second embodiment is the same as that of the first embodiment, so the description of the common structure is omitted and the description will focus on the differences. The same reference numerals as those in the first embodiment represent the same structure, and please refer to the above description.

[0119] In the first embodiment described above, the third region A3 of the substrate 70 includes the slit 74. In contrast, the second embodiment differs from the first embodiment in that the third region A3 of the substrate 70A does not include the slit 74.

[0120] <2-2. Main body structure>

[0121] Next, refer to Figure 12 and Figure 13The third region A3 of the substrate 70A of the main body portion 40A according to the second embodiment will be described.

[0122] In the present embodiment, the protective layer is peeled off from the entire first surface 71 of the third area A3 and is not covered with the protective layer.

[0123] like Figure 12 As shown, on the first surface 71 , both the left and right regions included in the third region A3 include an arc portion 74A and two quadrilateral portions 75A.

[0124] Each arc portion 74A has a semicircular arc shape centered on the screw hole 73. That is, in the second embodiment, the arc portion 74A is provided on the first surface 71 at the position of the slit 74 in the first embodiment. The arc portion 74A has two end portions 74Aa.

[0125] The two quadrilateral portions 75A have a quadrilateral shape extending from two end portions 74Aa to the ends of the substrate 70A. The longitudinal direction of each quadrilateral portion 75A coincides with the longitudinal direction of the substrate 70A. In other words, the longitudinal direction of each quadrilateral portion 75A coincides with the front-to-back direction, and the width direction coincides with the left-to-right direction.

[0126] like Figure 13 As shown, on the first surface 71, the resin member 60 includes a first covering portion 61A, a second covering portion 62, and a third covering portion 63. The first covering portion 61A includes a first resin adhesive portion 64Aa and a second resin adhesive portion 64Ab, and covers the portion of the first area A1 where the main power switch 41 and the display unit 42 are not mounted, and the third area A3.

[0127] On the first surface 71, the first resin adhesive portion 64Aa is bonded to each arcuate portion 74A in the third area A3. Furthermore, on the first surface 71, the second resin adhesive portion 64Ab is bonded to each quadrilateral portion 75A in the third area A3. In other words, the first covering portion 61A has the same shape as the first covering portion 61 of the first embodiment, with the first resin adhesive portion 64Aa added.

[0128] The first resin adhesive portion 64Aa and the second resin adhesive portion 64Ab are formed along the edge of the resin member 60. Specifically, the first resin adhesive portion 64Aa and the second resin adhesive portion 64Ab are formed along the boundary between the covering portion formed by the resin member 60A and the substrate 70A. Therefore, the adhesion between the resin member 60A and the substrate 70A is improved at the boundary between the resin member 60A and the substrate 70A.

[0129] On the other hand, on the second surface 72, the protective layer can be completely removed from the first area A1, the second area A2, and the third area A3, or a protective layer can be applied to the entire surface. Alternatively, on the second surface 72, the protective layer can be partially removed from the first area A1, the second area A2, and the third area A3. For example, on the second surface 72, the protective layer can be removed from the third area A3 in the same manner as on the first surface 71.

[0130] The resin member 60 includes a fifth covering portion 65A (not shown). The fifth covering portion 65A covers the first area A1 and the third area A3 of the second surface 72 and is connected to the first covering portion 61A. Specifically, the fifth covering portion 65A is formed by adding a semicircular arc portion having the same shape as the first resin adhesive portion 64Aa to the fifth covering portion 65 of the first embodiment.

[0131] <2-3. Effect>

[0132] According to the second embodiment described above, the same effects as the effects (2), (3), and (5) of the first embodiment are achieved, and the following effects are also achieved.

[0133] (6) The protective layer is removed from the entire first surface 71 in the third area A3. Furthermore, the resin component 60A includes a first resin adhesive portion 64Aa and a second resin adhesive portion 64Ab that are bonded to the third area A3. Therefore, at the end of the resin component 60A adjacent to the second area A2 of the first surface 71, the improved adhesion between the resin component 60A and the substrate 70A can suppress the entry of liquid and dust into the interior of the main power switch 41 and the display unit 42. This can further improve the waterproof and dustproof properties of the main body 40A.

[0134] (Other embodiments)

[0135] As mentioned above, although embodiment for implementing this disclosure was described, this disclosure is not limited to the said embodiment, It can be implemented with various deformation|transformation.

[0136] (a) In the above embodiment, the electronic components mounted on substrate 70 are the main power switch 41 and the display unit 42. However, the electronic components are not limited to these. For example, the electronic component mounted on substrate 70 may be either the main power switch 41 or the display unit 42, or may be a switch different from the main power switch 41.

[0137] (b) In the above embodiment, the substrate 70 has a cross shape, but the shape of the substrate 70 is not particularly limited.

[0138] (c) In the above embodiment, the slit 74 is semicircular in shape, but the shape of the slit 74 is not limited thereto. For example, when the screw hole 73 is not provided in the second area A2, the slit 74 may be linear in shape.

[0139] (d) The working equipment is not limited to the blower 2, and any working equipment that operates with direct current from a battery and has a substrate and electronic components can be used. For example, the working equipment may be an electric tool, a gardening tool, a laser marking machine, or a lamp. Electric tools and gardening tools are tools that use the driving force of a motor to drive a top tool. Examples of electric tools include chain saws, impact drivers, circular saws, and the like. Gardening tools include lawn mowers, hedge trimmers, and the like. In addition, electric tools and gardening tools may also be tools that include: an engine that generates a driving force to drive the top tool, and a starter motor that uses direct current from a battery to generate a rotational force and give the engine's crankshaft an initial rotation. The present disclosure can achieve great benefits, particularly when applied to working equipment used outdoors.

[0140] (e) It is also possible to implement multiple functions of one component in the above-mentioned embodiment using multiple components, or implement one function of one component using multiple components. In addition, it is also possible to implement multiple functions of multiple components using one component, or implement one function implemented by multiple components using one component. In addition, it is also possible to omit a portion of the structure of the above-mentioned embodiment. In addition, it is also possible to supplement at least a portion of the structure of the above-mentioned embodiment with the structure of another above-mentioned embodiment, or replace it with the structure of another above-mentioned embodiment.

[0141] Description of Reference Numerals

[0142] 2…blower; 20…handle; 22…trigger switch; 30…operating portion; 31…operating member; 34…window; 35…cover; 36…holding portion; 37…wall portion; 38…upper surface portion; 40…main body; 41…main power switch; 41a…button; 41b…base portion; 42…display portion; 42a…LED; 42b…lens; 50…lead wire; 51…cover portion; 52…core wire portion; 60… Resin component; 61…1st covering portion; 62…2nd covering portion; 63…3rd covering portion; 64…4th covering portion; 65…5th covering portion; 70…substrate; 71…1st surface; 72…2nd surface; 73…threaded hole; 74…slit; 75…2nd bonding portion; 76…1st bonding portion; 80…tapping screw; 90…battery pack; A1…1st area; A2…2nd area; A3…3rd area.

Claims

1. An operating device, wherein: The operating equipment has: a substrate having a first region, a second region, and a third region located at a boundary between the first region and the second region, wherein the first region, the second region, and the third region each have a first surface and a second surface; at least one electronic component mounted in the first area; at least one slit disposed in the third region and having a semicircular arc shape centered in the second region; as well as a resin component integrally formed to penetrate the at least one slit and cover a portion of the at least one electronic component, the first surface of the first region, and the second surface; The second region entirely extends outside the resin member and is not covered by the resin member.

2. The working equipment according to claim 1, wherein: The working equipment has at least one threaded hole provided in the second area. The center is one of the at least one threaded hole.

3. The working equipment according to claim 1 or 2, wherein: The working equipment includes at least one bonding portion provided in the third area. The resin member is bonded to the at least one bonding portion without a protective layer interposed therebetween.

4. The working equipment according to claim 1 or 2, wherein: The working device includes a conductive wire electrically connected to the electronic component, and a portion of the conductive wire is covered by the resin component. The first region has an end portion that is not in contact with the third region, The lead wire protrudes from the resin member on the end portion side.

Citation Information

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