JP6655509B2 - Compressor and equipment equipped with compressor - Google Patents

Description

  The present invention relates to a compressor and a device equipped with the compressor.

  Patent Document 1 is known as an electrical component protection device for a compressor. The compressor for a refrigeration cycle is provided with electrical components 107 such as a PTC (starting relay) and a motor protector that cuts off current when heated to a predetermined temperature. These electrical components 107 prevent dust, fire, and the like. It is covered with an electrical component cover 103 for the purpose of waterproofing, protection from external impact, prevention of electric shock, and the like. The electrical component cover 103 is inserted and attached to the bracket 102 (paragraphs 0027, 0033, etc.).

JP 2012-233454 A

  In the configuration of Patent Document 1, in a manufacturing process such as an assembling operation in which the electrical component cover 103 (protector) is locked to the bracket 102, the holding portion 113 holds the insertion portion 112 and the claw portion 123 engages with the locking hole 102a. By stopping, the electrical component cover 103 is completely inserted. Since the insertion portion 112 and the locking hole 102a related to the assembly are covered by the cover 103 regardless of whether they are completely inserted, it is easy to determine from the appearance whether or not they have been completely inserted. Can not.

In view of the above circumstances, the first present invention provides:
A main surface attached to the compressor and surrounding the terminal; and
An opening, or a protector having a planar guide connected to the main surface and extending in a direction substantially perpendicular to the main surface,
When the protector has the opening, the protector has a planar guide that can be inserted into the opening by being relatively moved with respect to the protector along a direction substantially perpendicular to the main surface, and the protector is provided on the surface. When having a guide in the shape of, the cover has an opening that can be inserted, and a cover that is detachable from the protector,
The guide is provided with a marker and a hole,
The opening is provided with a structure corresponding to the hole,
The guide is inserted into the opening, the structure is engaged with the hole, and the cover and the protector are mounted in a normal mounting state;
The guide is inserted before KiHiraki port, and the cover and the protector is not attached in a semi-fitted state, visible range of the marker provided in the guide is a different compressor.

FIG. 3 is a perspective view of a state before the cover of the first embodiment is assembled to the protector of the compressor. A perspective view for explaining (a) a protector and (b) a cover of the first embodiment. Front view of the cover of the first embodiment FIG. 3 is a perspective view of the cover mounted state of the first embodiment. Sectional view of Embodiment 1 with cover inserted FIG. 4 is a view of the cover in the half-inserted state according to the first embodiment viewed from (a) a right direction and (b) a left direction. FIG. 4 is a view of the cover in the state in which the cover is inserted according to the first embodiment, as viewed from (a) a right direction and (b) a left direction. FIG. 3 is a perspective view of the refrigerator according to the first embodiment in an assembled state.

  Embodiments of the present invention will be described with reference to the accompanying drawings. For convenience of description, the terms up and down, front and back, and left and right directions that are orthogonal to each other are used. Similar components are denoted by the same reference numerals, and the same description will not be repeated.

[Protector 3]
FIG. 1 is a perspective view of a state before the cover 4 is assembled to the protector 3 of the compressor 1, and FIG. 2A is a perspective view of the protector 3. The direction when observing the glass terminal 2 from the front is defined as the front direction.

  The protector 3 is attached by welding or the like in the vicinity of the glass terminal 2 as an example of a terminal for activating the electric element of the hermetic compressor 1. The protector 3 has a flat main surface 3z surrounding the periphery of the glass terminal 2 in the attached state, a top plate 3a connected to the upper side of the main surface 3z and extending in the rearward direction, and one of the left and right sides of the main surface 3z (in the present embodiment, the right side). ), And a facing guide 3e located on the other side (left side in this embodiment) of the main surface 3z in the left-right direction and extending in the backward direction.

  The top plate 3a is a surface substantially perpendicular to the vertical direction, and has a first locking hole 3b. One side of the top plate 3a in the left-right direction (the right side in the present embodiment) has a shape that spreads more rearward than the other side in the left-right direction, and the first locking hole 3b is formed in this portion. Is provided. The top plate 3a can be used for, for example, suppressing the intrusion of water droplets from above or for positioning when the cover 4 is assembled.

  The guide 3c is a surface substantially perpendicular to the left-right direction, and has a marker 3d on the rear end side. As will be described later, the marker 3d improves the efficiency of visually checking whether or not the cover 4 is correctly assembled when the cover 4 is assembled to the protector 3, and has an appearance different from that of the other parts of the guide 3c. (Acting as a first marker). For example, the marker 3d can be a hole provided in the guide 3c on a flat plate, or a portion having a different color or gloss from other portions of the guide 3c. Further, the guide 3c can be used for positioning when the protector 3 is assembled.

  The facing guide 3e is a surface substantially perpendicular to the left-right direction, and faces the guide 3c across the main surface 3z in the left-right direction. The facing guide 3e has a second locking hole 3f provided on the front end side and a projection 3g provided on the upper side. The protrusions 3g improve the efficiency of visually checking whether or not the guide 3c is correctly assembled when the guide 3c is assembled to the cover 4 as described later (acting as a second marker). ). Note that the protector 3 can be formed of, for example, a metal.

[Cover 4]
FIG. 2B is a perspective view illustrating the cover 4, and FIG. 3 is a front view of the cover 4. In FIG. 3, the direction toward the front of the page is the front direction.
The cover 4 has a first claw 4b engaged with the first locking hole 3b when assembled to the protector 3, a right side surface 4d provided with an opening 4c into which the guide 3c is inserted, and a facing guide 3e. An opening 4e, a cord attaching portion 4h to which a power cord (not shown) can be attached, a terminal pressing portion 4j, and a rear surface 4z facing the main surface 3z when assembled to the protector 3. The cover 4 has cylindrical sections so as to form the openings 4c and 4e. The opening 4e is provided with a second claw 4f which is locked in the second locking hole 3f. The cover 4 can be formed of an elastically deformable or flexible material, for example, a synthetic resin.

  Since the openings 4c and 4e are cylindrical, they are spaces separated from the inside of the cover 4, and when the cover 4 is normally attached to the protector 3, water droplets that have reached the openings 4c and 4e are left inside the cover 4. We control invasion.

  The cord attachment portion 4h is provided below the cover 4. By locking the power cord in a region between the bent portion 4h1 in which the lower end of the cover 4 is bent upward and the main surface 4z, the fall of the power cord can be suppressed. The cord attachment portion 4h communicates with the outside of the cover 4, but since the opening faces downward, it is possible to prevent water droplets from entering.

  The terminal pressing portion 4j is a projection that can contact or approach a terminal connected to the glass terminal 2 when the cover 4 is attached. When the cover 4 is made of resin or the like, when the operator pushes the main surface 4z forward when attaching the cover 4, the cover 4 is deformed, and the terminal pressing portion 4j contacts the terminal. Thus, for example, when the terminal is not properly attached to the glass terminal 2, the attachment can be performed by the pressing force of the operator.

[Attachment of protector 3 and cover 4]
4 is a perspective view of the cover 4 mounted state, FIG. 5 is a cross-sectional view of the cover 4 inserted state, and FIG. 6 is a view of the cover 4 in the cover 4 half-inserted state viewed from (a) right direction and (b) left direction. FIG. 7 and FIG. 7 are views of the cover 4 in the inserted state of the cover 4 as viewed from (a) right direction and (b) left direction.
The protector 3 and the cover 4 are assembled by, for example, abutting and inserting in the direction of the dashed arrow shown in FIG. When the protector 3 and the cover 4 are assembled, a storage room, which is a space surrounded by the main surface 3z, the rear surface 4z, and the like, in which the electrical components and the glass terminal 2 can be stored, is formed.

  Specifically, assembling, first, when the cover 4 is abutted, the area of the top plate 3a behind the first locking hole 3b and the second of the facing guide 3e The first claw 4b and the second claw 4f come into contact with a region rearward of the locking hole 3f. These contacts create some frictional resistance. This resistance is further increased when the cover 4 is made of an elastically deformable material. That is, the worker attaching the cover 4 can easily perceive that the claws 4b and 4f are in contact with the protector 3.

  When it is further struck from there by a force exceeding this resistance, the resistance is weakened by the first claw 4b and the second claw 4f entering the first locking hole 3b and the second locking hole 3f, At substantially the same time, they engage. In a state in which the cover 4 is normally attached to the protector 3, in this embodiment, the first claw 4b is engaged with the first locking hole 3b (see FIG. 5 and the like), and the second locking hole 3f is fitted. The state in which the second claw 4f is engaged is referred to as a mounted state. Moreover, although the cover 4 is in contact with the protector 3 but both are not properly mounted, in this embodiment, one or both of the claws 4b and 4f are not engaged with the holes 3b and 3f, respectively. The state is referred to as a semi-mounted state.

  In the mounted state, the guide 3c is exposed from the opening 4c, and a part of the facing guide 3e is exposed from the cover 4 from the opening 4e. In particular, the marker 3d is exposed from the opening 4c, and the projection 3g is exposed partially from the opening 4e, preferably all as illustrated in FIGS. 7 (a) and 7 (b).

  In the semi-mounted state, the marker 3d is exposed from the opening 4c and the projection 3g is exposed from the opening 4e in a range different from the mounted state (in this embodiment, a smaller range than the mounted state), or the marker 3d and / or the projection 3g is exposed. Everything is hidden (invisible). In this embodiment, in the mounted state, the marker 3d provided as a circular hole is entirely exposed (see FIG. 7A), and partially exposed in the semi-mounted state (see FIG. 6A). . In the mounted state, the projection 3g is exposed (see FIG. 7B), and in the half-mounted state, the whole is hidden (see FIG. 6B). From the viewpoint of manufacturing tolerance (processing accuracy), the marker 3d and the protrusion 3g are preferably provided over 0.1 mm or more, preferably 0.2 mm or more in the front-rear direction. From the viewpoint of easy visual inspection by an operator, a larger one is preferable, and for example, it is preferable that it is 2 mm or more in any direction.

  Here, as exemplified in FIG. 6A and the like, the front-rear dimension of the cylindrical portion forming the opening 4c is shorter than the front-rear dimension of the right side face 4d due to the notch 4da provided in the right side face 4d. I have. For this reason, even if the front and rear dimensions of the guide 3c and the marker 3d are substantially the same as or shorter than the front and rear dimensions of the right side surface 4d, the guide 3c and the marker 3d can be exposed from the cover 4 at the time of mounting. As a result, the guide 3c and the marker 3d do not protrude rearward from the cover 4 (fit in front of the rear end of the cover 4), and can be viewed from the left / right direction (right direction in this embodiment).

  At the time of mounting, the operator may judge (misunderstand) that the mounting has been performed normally based on the state immediately before the mounting state. In particular, when the cover 4 is formed of a synthetic resin or the like, the amount of deformation of the claws 4b and 4f gradually increases as the cover 4 comes into contact with the cover 4, so that a structure in which resistance due to friction gradually increases. By doing so, while the mounting state of the cover 4 can be strengthened, the half-mounted state is likely to be realized as a state immediately before the mounted state, and the operator may be more likely to misunderstand. For this reason, the attachment is strengthened by using the claws 4b and 4f provided on the resin cover 4, and the marker 3d and 3f provided on the guides 3c and 3e that come into contact with the claws 4b and 4f. Can be prevented from being erroneously recognized as being in the mounted state, and a more preferable mounting structure can be realized.

  FIG. 8 is a perspective view of a state where the refrigerator is assembled. According to the present embodiment, since the marker 3d or the protrusion 3g can be viewed from either the left or right direction, even if the compressor 1 is assembled to a device such as the refrigerator 10, the mounted state of the cover 4 can be easily determined visually. is there. For this reason, for example, even if it becomes a half-insertion state due to vibration during the operation of the compressor, it is easy to determine.

[Other aspects, etc.]
Note that the marker 3d may be red, yellow, or the like so that the color of the exposed portion can be easily viewed. This makes it possible to provide a marker that is inexpensive and easy to process.

  The cover 4 defines a space for accommodating an electric component (not shown) through which a current flows, as a space partitioned from the openings 4c and 4e. This prevents water, dust, dust, insects, and the like from entering through the openings 4c and 4e, thereby providing a highly reliable electrical component protection cover. By assembling the cover 4 with a nail instead of a screw or the like, it is possible to effectively prevent water droplets or the like from entering the cover 4.

  In the present embodiment, the determination is made by using the marker 3d or the protrusion 3g in order to enhance the visibility. However, the determination may be made based on whether or not the tip of the guide 3c or the tip of the facing guide 3e is visible. . Specifically, the notch of the opening 4c may be designed so that the tip of the guide 3c is visible from the opening 4c in the mounted state, and is not visible in the semi-mounted state.

  In the present embodiment, both are assembled so that the cover 4 surrounds the protector 3. That is, the cover 4 is assembled so that the side surface and the upper surface of the cover 4 are located outside the top plate 3a, the guide 3c, and the facing guide 3e. The hole 3b is provided on the protector 3 side, and the claw 4b is provided on the cover 4 side. Thus, since the hole is located inside, it is possible to suppress the water droplet from entering inside through the hole.

  Further, in the present embodiment, the first hole 3b, the second hole 3f, and the marker 3d are provided in different directions (up, left, and right in the present embodiment, respectively). That is, since the marker 3d is located at a position away from each of the holes 3b and 3f, it is possible to suppress the same exposure state as in the mounted state even in the case of the semi-mounted state in which any of them is not engaged. On the other hand, if a marker is provided at a position close to any one of the holes, such as the projection 3g, if a half-mounted state occurs in which engagement with holes other than this hole is not normal, the marker is exposed. The range may be similar to the mounted state and may be difficult to distinguish. For this reason, it is preferable to provide a marker relatively close to each hole as in the present embodiment. In this embodiment, the number of markers is equal to the number of holes, but the number of markers may be larger.

[Other assembly methods]
In view of the structure of this embodiment, the cover 4 can be assembled by the following method instead of the above method.
The facing guide 3e and the second hole 3f are provided at the left end of the protector 3, and the first hole 3b of the top surface 3a is provided at a position (for example, the center side) other than the end in the left-right direction. . For this reason, first, the second claw 4f of the cover 4 is engaged with the second hole 3f, and then the second claw 4f and the second hole 3f are rotated about the engaged second claw 4f. The first claw 4b is approached toward the hole 3b. Then, a pressing force is applied forward to engage the first claw 4b with the first hole 3b.

  When the assembling operation is performed in this manner, the step of engaging the first claw 4b with the first hole 3b by the principle of leverage around the second claw 4f and the second hole 3f with a relatively small force. It can be carried out. Such assembling work is easy to perform because the facing guide 3e is located at the end in the left-right direction, so that it is easy to secure the rotation axis.

1 hermetic compressor (compressor)
2 Glass terminal
3 Protector 3a Top plate 3b First locking hole 3c Guide 3d Marker (first marker)
3e Facing guide 3f Second locking hole 3g Projection (second marker)
4 cover 4b first claw 4c opening 4d right side surface 4e opening 4f second claw 10 refrigerator

Claims (3)

A main surface attached to the compressor and surrounding the terminal; and
An opening, or a protector having a planar guide connected to the main surface and extending in a direction substantially perpendicular to the main surface,
When the protector has the opening, the protector has a planar guide that can be inserted into the opening by being relatively moved with respect to the protector along a direction substantially perpendicular to the main surface, and the protector is provided on the surface. When having a guide in the shape of, the cover has an opening that can be inserted, and a cover that is detachable from the protector,
The guide is provided with a marker and a hole,
The opening is provided with a structure corresponding to the hole,
The guide is inserted into the opening, the structure is engaged with the hole, and the cover and the protector are mounted in a normal mounting state;
The guide is inserted before KiHiraki port, and the cover and the protector is not attached in a semi-fitted state, compressor visible range of the marker provided in the guide is different. The cover is made of resin, and the protector is made of metal,
The cover has a plurality of the structures,
The protector has a plurality of the holes,
The cover,
A rear surface, and a pressing portion provided on the rear surface,
At least two of the structures are located on different sides with respect to the rear surface;
The compressor according to claim 1, wherein the pressing portion is capable of contacting a member on the protector side by applying a pressing force when attaching the cover to the protector. An apparatus having the compressor according to claim 1 or 2,
The compressor is a device in which the guide and the marker are visually attached to the device.

Images