JP4973702B2 - Electrical component module, cooling member coupling method, and air conditioner - Google Patents

Description

  The present invention relates to an electrical component module, a cooling member coupling method, and an air conditioner.

  Conventionally, as disclosed in Patent Document 1 below, an electrical component module having a configuration in which a circuit board on which electrical components such as power elements are mounted is disposed in a casing is known. The casing of this electrical component module is made of, for example, metal or conductive resin, and the casing is joined with a refrigerant jacket made of an aluminum plate into which a part of a refrigerant pipe through which the refrigerant flows is inserted, The power elements mounted on the circuit board are thermally coupled. Thereby, the heat of a power element is transmitted to the refrigerant | coolant which flows through refrigerant | coolant piping via a casing and a refrigerant | coolant jacket, and can heat-radiate the heat of a power element.

JP 2008-101862 A

  By the way, as disclosed in Patent Document 1, in the case where a metal plate such as a refrigerant jacket and a metal or resin plate portion such as a casing of an electrical component module are thermally coupled, transmission is performed. In order to increase thermal efficiency, it is necessary to adhere closely. For this reason, it is possible to apply a semi-solid viscous coating material such as grease to the surface-bonded portion and to bond the both surfaces through this coating material. However, in this method, there is a possibility that the coating applied to the refrigerant jacket or casing adheres to an unintended place during the manufacturing process, or dust adheres to the coating. On the other hand, even if the coating material is applied immediately before joining the refrigerant jacket and the casing, when the refrigerant jacket and the casing are joined, for example, the coating material applied to the casing adheres to the refrigerant jacket and is applied. The agent may be scraped off.

  An object of the present invention is to enable surface bonding of an electrical component module or a cooling member without scraping off the coating material applied to the bonding surface of the electrical component module or the bonding surface of the cooling member.

  In order to achieve the above object, the present invention provides an electrical component module (35) having a joint surface (60c) and a joint surface (37a) surface-bonded to the joint surface (60c) of the electrical component module (35). And a cooling agent (37) having a coating material (95) on one of the joining surface (60c) of the electrical component module (35) and the joining surface (37a) of the cooling member (37). ) So that a gap is formed between the electrical component module (35) and the cooling member (37) to which the coating agent (95) is applied and the coating agent (95). In this state, a cover (85) is provided, and the joint surface (60c) of the electrical component module (35) and the joint surface (37a) of the cooling member (37) are opposed to each other with the cover (85) interposed therebetween. The electrical component module (35 The cover (85) is removed from one of the cooling members (37), and the joining surface (60c) of the electrical component module (35) and the joining surface (37a) of the cooling member (37) are surface-joined. This is a method of coupling an electrical component module and a cooling member.

  In the present invention, a cover is formed on one of the electrical component module (35) and the cooling member (37) having the coating agent (95) applied to the joint surface so as to form a gap between the coating agent (95). (85) is provided, and the joining surface (60c) of the electrical component module (35) and the joining surface (37a) of the cooling member (37) are opposed to each other so that the cover (85) is sandwiched between them. (85) is removed, and the electrical component module (35) and the cooling member (37) are joined. For this reason, until the electrical component module (35) and the cooling member (37) are arranged to face each other, the cover (85) is present on the surface to which the coating agent (95) is applied, and thus the intention is made during the manufacturing process. It is possible to prevent the coating material (95) from adhering to the place where it is not applied and the dust from adhering to the coating material (95). Moreover, since a gap is formed between the cover (85) and the coating agent (95) and the cover (85) is separated from the coating agent (95), the cover (85) is removed. It is also possible to prevent the coating agent (95) from being scraped off by the cover (85). Furthermore, when the cover (85) is removed, the joint surface (60c) of the electrical component module (35) and the joint surface (37a) of the cooling member (37) are in opposition to each other. ) Is removed, it suffices to merely bond the two bonding surfaces to each other, so that the coating agent (95) can be prevented from being scraped off.

In the present invention, to the outer take the cover (85), by one slide along the slide rail (87) provided on said electric component module (35) and said cooling member (37).

  In this aspect, since the cover (85) is slid along the slide rail (87) when the cover (85) is removed, the cover (85) moves along a predetermined route. For this reason, it is possible to avoid accidentally passing the place where the coating agent (95) is applied when the cover (85) is removed, and thus the coating agent (95) is scraped off when the cover (85) is removed. This can be surely prevented.

  In this aspect, when the cooling member (37) cools the joint surface (37a) with the refrigerant of the refrigerant circuit (18), the components of the refrigerant circuit (18) are used as the base (30a). ) And set the cooling member (37) in a predetermined position until the joint surface (60c) of the electrical component module (35) faces the joint surface (37a) of the cooling member (37). The electrical component module (35) may be slid.

  In this aspect, the cooling member (37) is held in a predetermined position by setting the components of the refrigerant circuit (18) on the base (30a). Then, in this state, the electrical component module (35) is moved along the slide rail (87) so that the electrical component module (35) and the cooling member (37) are opposed to each other. Therefore, the cooling member (37) to which the cooling passage (18a) is joined can be thermally joined to the electrical component module (35), and the heat generated by the electrical component module (35) is reduced to the cooling passage ( It is possible to transfer heat to the refrigerant 18a).

  In addition, an inclined portion (85d) is provided at one end of the cover (85), and the electrical component module (35) is arranged so that one end provided with the inclined portion (85d) is closer to the other end. In addition, the electrical component module (35) and the cooling member (37) may be opposed to each other by relatively moving the cooling member (37).

  In this aspect, when the electrical component module (35) is slid, even if the cover (85) may come into contact with the other of the electrical component module (35) and the cooling member (37), the inclined portion (85d) The other party to which the cover (85) is not attached is guided by the presence of. Therefore, the work at the time of sliding of the electrical component module (35) can be facilitated.

  The electrical component module (35) is held in a state where the joint surface (60c) of the electrical component module (35) and the joint surface (37a) of the cooling member (37) are opposed to each other. The cover (85) may be removed.

  In this aspect, since the electrical component module (35) is temporarily fixed to the cooling member (37) when the cover (85) is removed, the labor of removing the cover (85) can be reduced. it can.

  By the way, for example, when the electrical component module (35) is removed from a predetermined position at the time of service such as inspection and repair, the coating agent (95) on the joint surface is exposed. When service such as inspection and repair is performed with the coating agent (95) exposed in this way, the coating agent (95) on the joint surface adheres to an unintended place or dust adheres to the coating agent (95). There is a risk of doing so.

  Therefore, after joining the joint surface (60c) of the electrical component module (35) and the joint surface (37a) of the cooling member (37), the cover (85) is attached to the electrical component module (35) and the It is preferable to attach to one of the cooling members (37).

  In this aspect, the cover (85) is removed from one of the electrical component module (35) and the cooling member (37), the joint surfaces (60c, 37a) are surface-joined, and then the cover (85) is removed. Is reattached to one of the electrical component module (35) and the cooling member (37). Thereby, the cover (85) can be reused at the time of service or the like to protect the joint surface to which the coating agent (95) has been applied. That is, the cover (85) is attached to one of the electrical component module (35) and the cooling member (37) during normal use such as during cooling operation and heating operation of the air conditioner. On the other hand, at the time of service, the cover (85) can be reattached to one of the electrical component module (35) and the cooling member (37) after separating the joint surfaces (60c, 37a) that are surface joined. As a result, even when the electrical component module (35) is removed from a predetermined position at the time of service or the like, the coating agent (95) adheres to an unintended place or dust adheres to the coating agent (95). Can be suppressed.

  The present invention is an air conditioner having a refrigerant circuit (18), which is capable of controlling the refrigerant circuit (18) and has an electric component module (35) having a joint surface (60c), and a joint surface (37a). A coating member (95) interposed between the joint surface (60c) of the electrical component module (35) and the joint surface (37a) of the cooling member (37), One of the electrical component module (35) and the cooling member (37) is an air conditioner including a pair of slide rails (87) provided at positions sandwiching the coating agent (95).

  In the air conditioner of the present invention, the slide rail (87) is provided on one of the electrical component module (35) and the cooling member (37). The cover (85) provided so as to form a gap with the agent (95) can be removed. Therefore, since the cover (85) can be provided when the electrical component module (35) and the cooling member (37) are joined, the coating agent (95) is placed in an unintended place during the manufacturing process. Can be prevented, and dust can be prevented from adhering to the coating material (95).

  In this air conditioner, the cooling member (37) may cool the joint surface (37a) with the refrigerant of the refrigerant circuit (18).

  The air conditioner may further include a cover (85) provided so as to cover a surface of the cooling member (37) opposite to the joint surface (37a).

  In this configuration, during normal use of the air conditioner, the joint surface (37a) of the cooling member (37) exchanges heat with the joint surface (60c) of the electrical component module (35), while the cooling member (37 The surface opposite to the joint surface (37a) is covered with a cover (85). Therefore, heat exchange with air and other members is suppressed on the opposite surface. That is, by covering the opposite surface of the cooling member (37) with the cover (85), air convection in the vicinity of the opposite surface can be suppressed. This suppresses heat exchange on the opposite surface, so that the cooling member (37) is mainly heated between the joint surface (37a) and the joint surface (60c) of the electrical component module (35). As a result, the electrical component module (35) can be cooled more efficiently.

  Therefore, when the thermal conductivity of the cover (85) is lower than the thermal conductivity of the members constituting the joint surface (60c) of the electrical component module (35), the heat conduction through the cover (85) is suppressed. can do. As a result, the heat exchange on the opposite surface is further suppressed, so the efficiency of heat exchange between the joint surface (37a) of the cooling member (37) and the joint surface (60c) of the electrical component module (35). Can be further improved.

  In addition, the air conditioner of the present invention further includes a device (23) disposed below the cooling member (37) and generating heat during operation, and the cover (85) is provided at a lower end thereof. You may have the extension part (85d) extended to the said electrical component module (35) side so that the lower end part of the said cooling member (37) may be covered.

  In this configuration, since the extending portion (85d) is provided at the lower end portion of the cover (85), the device (23) that generates heat during operation, such as a compressor (23), can be used as the cooling member (37). ), It is possible to prevent the hot air from the device (23) from directly hitting the cooling member (37) during operation. Thereby, it can suppress that the efficiency which the cooling member (37) cools an electrical component module (35) falls.

  The extending portion (85d) may extend obliquely downward toward the electrical component module (35).

  In this configuration, since the extended portion (85d) extends obliquely downward toward the electrical component module (35), hot air from the device (23) flows along the inclined extended portion (85d). It becomes easy. Thereby, since hot air can be suppressed from staying below the extended portion (85d), it is possible to further suppress a decrease in cooling efficiency.

  The air conditioner of the present invention further includes a refrigerant pipe (18a) for cooling the cooling member (37) through which the refrigerant of the refrigerant circuit (18) flows, and the cover (85) includes: The refrigerant pipe (18a) has a notch part into which the refrigerant pipe (18a) is fitted, and a part of the refrigerant pipe (18a) is covered with the cover (85) together with the cooling member (37), Another part may be extended outside the cover (85) through the notch.

  In this configuration, since the refrigerant pipe (18a) extends outside the cover (85) through the notch, the gap between the cover (85) and the refrigerant pipe (18a) can be reduced. Thereby, since it can suppress that the hot air from the said apparatus (23) enters into the space between a cover (85) and a cooling member (37) through the said clearance gap, it further suppresses the fall of cooling efficiency. Can do.

  As described above, according to the present invention, the electrical component module or the cooling member can be surface-bonded without scraping off the coating applied to the joint surface of the electrical component module or the cooling member.

It is a figure showing roughly the piping system of the air harmony device concerning the embodiment of the present invention. It is a front view of the outdoor unit of the air harmony device of a 1st embodiment, and this figure expresses the state where the machine room was exposed. It is a side view of the said outdoor unit represented in the same state as FIG. It is a top view which shows the structure in the casing of the said outdoor unit. It is the perspective view which looked at the electrical component module provided in the said outdoor unit from the back side. It is a figure which shows roughly the connection state of the power element and heat-transfer board which were mounted in the 1st board | substrate part. It is a figure which shows the structure of a heat exchanger plate roughly. It is a figure for demonstrating the attachment state of the electrical component module with respect to a partition plate. It is a perspective view which shows the mounting state of the refrigerant | coolant jacket to the heat exchanger plate after removing a cover. It is a perspective view which shows a main member partially. It is a perspective view of a cover. It is a perspective view which shows the arrangement | positioning relationship between the refrigerant | coolant jacket and heat exchanger plate before removing a cover. It is the schematic for demonstrating the state before removing a cover. It is the schematic for demonstrating the state after removing a cover. It is a front view of the outdoor unit of the air conditioning apparatus which concerns on 2nd Embodiment of this invention. It is a perspective view which shows the electrical component module in 2nd Embodiment, and the structure of its periphery. It is sectional drawing for demonstrating arrangement | positioning of the cover in 2nd Embodiment, a refrigerant | coolant jacket, and an electrical component module. It is a disassembled perspective view which shows arrangement | positioning of the cover of 2nd Embodiment, a refrigerant | coolant jacket, and an electrical component module. (A) It is a front view which shows the refrigerant | coolant jacket in 2nd Embodiment, (b) is the sectional view on the AA line. (A) And (b) is a perspective view which shows the adhesion state of the coating agent in the front surface of the heat exchanger plate of an electrical component module, respectively. It is a perspective view which shows the electrical component module removed from the predetermined | prescribed arrangement position of an outdoor unit at the time of service etc. (A) is a perspective view which shows the state which joined the joint surface of the refrigerant | coolant jacket to the joint surface of the electrical component module, (b) is the partial fracture | rupture which expanded the surface-joined peripheral part E in (a) It is a perspective view.

  Embodiments of the present invention will be described below with reference to the drawings.

<First Embodiment>
FIG. 1 shows a piping system of an air conditioner 10 according to the first embodiment. The air conditioner 10 is a heat pump type air conditioner 10 capable of cooling operation and heating operation. As shown in FIG. 1, the air conditioner 10 includes an outdoor unit 11 installed outside and an indoor unit 12 installed indoors. The outdoor unit 11 and the indoor unit 12 are connected via a first connection pipe 13 and a second connection pipe 14. The air conditioner 10 is provided with a refrigerant circuit 18 in which pipes including the connection pipes 13 and 14 are connected in a closed circuit shape. The refrigerant circuit 18 is mainly provided with an indoor heat exchanger 20, a compressor 23, an oil separator 24, an outdoor heat exchanger 25, an expansion valve 26 that is an expansion mechanism, an accumulator 27, and a four-way switching valve 28. In the refrigerant circuit 18, a refrigerant is circulated to perform a vapor compression refrigeration cycle.

  The indoor heat exchanger 20 is a heat exchanger for exchanging heat between the refrigerant and indoor air, and is provided in the indoor unit 12. As the indoor heat exchanger 20, for example, a cross fin type fin-and-tube heat exchanger or the like can be employed. An indoor fan (not shown) for blowing indoor air to the indoor heat exchanger 20 is provided in the vicinity of the indoor heat exchanger 20.

  The compressor 23, the oil separator 24, the outdoor heat exchanger 25, the expansion valve 26, the accumulator 27, and the four-way switching valve 28 are provided in the outdoor unit 11. These are all housed in the casing 30 (see FIGS. 2 to 4).

  The compressor 23 has a suction port, a compression mechanism, and a discharge port. The refrigerant sucked from the suction port is compressed by the compression mechanism and discharged from the discharge port. As the compressor 23, various compressors, such as a scroll compressor, are employable, for example.

  The oil separator 24 is for separating the lubricating oil from the mixed fluid of the lubricating oil and the refrigerant discharged from the compressor 23. The separated refrigerant is sent to the four-way switching valve 28, and the lubricating oil is returned to the compressor 23.

  The outdoor heat exchanger 25 is for exchanging heat between the refrigerant and outdoor air. For example, a cross fin type fin-and-tube heat exchanger or the like can be adopted. An outdoor fan 31 for blowing outdoor air to the outdoor heat exchanger 25 is provided in the vicinity of the outdoor heat exchanger 25.

  The expansion valve 26 is disposed between the outdoor heat exchanger 25 and the indoor heat exchanger 20 in the refrigerant circuit 18, and expands the refrigerant that has flowed in to reduce the pressure to a predetermined pressure. As the expansion valve 26, for example, an electronic expansion valve 26 having a variable opening can be employed.

  The accumulator 27 is for gas-liquid separation of the flowing refrigerant, and is arranged between the suction port of the compressor 23 and the four-way switching valve 28 in the refrigerant circuit 18. The gas refrigerant separated by the accumulator 27 is sucked into the compressor 23.

  The four-way switching valve 28 is provided with first to fourth ports. The four-way switching valve 28 includes a first state (state indicated by a solid line in FIG. 1) in which the first port and the third port are communicated with each other and a second port and a fourth port, and the first port and the fourth port. Can be switched to a second state (state indicated by a broken line in FIG. 1) in which the second port and the third port are communicated simultaneously. The first port is connected to the discharge port of the compressor 23 via the oil separator 24, the second port is connected to the suction port of the compressor 23 via the accumulator 27, and the third port is connected to the outdoor It is connected to the heat exchanger 25 and the fourth port is connected to the indoor heat exchanger 20 via the first connection pipe 13. When the air conditioner 10 performs the cooling operation, the four-way switching valve 28 is switched to the first state, and when the heating operation is performed, the four-way switching valve 28 is switched to the second state.

  A refrigerant jacket 37, which is a cooling unit for cooling the heat generating part of the electrical component module 35, is joined to the liquid side pipe of the refrigerant circuit 18. In the illustrated example, the liquid side pipe to which the refrigerant jacket 37 is joined is a liquid side pipe between the outdoor heat exchanger 25 and the expansion valve 26 in the refrigerant circuit 18, but the refrigerant to which the refrigerant jacket 37 is joined. The piping is not limited to this. However, considering the cooling capacity, the refrigerant jacket 37 is preferably joined to the liquid side pipe.

  In the pipe joined to the refrigerant jacket 37, the refrigerant condensed by the outdoor heat exchanger 25 flows during the cooling operation, and the refrigerant condensed by the indoor heat exchanger 20 and decompressed by the expansion valve 26 flows during the heating operation. . Although the temperature of these refrigerant | coolants changes with operating conditions etc., it is about 40-45 degreeC at the time of air_conditionaing | cooling operation, for example.

  The refrigerant jacket 37 is formed in a flat shape, and is configured to be surface-bondable at a predetermined position of the electrical component module 35. The electrical component module 35 is an electrical component assembly for performing operation control of the refrigerant circuit 18, and is provided in the outdoor unit 11. Detailed configurations of the electrical component module 35 and the refrigerant jacket 37 will be described later.

  As shown in FIGS. 2 to 4, the outdoor unit 11 includes a bottom plate 30 a as a base, a side plate 30 b erected on the peripheral edge of the bottom plate 30 a, and a top plate installed between the upper ends of the side plates 30 b. And a casing 30 having 30c, and has a substantially rectangular parallelepiped appearance as a whole.

  The outdoor unit 11 is provided with a partition plate 39 that divides the space in the casing 30 into two spaces. The partition plate 39 has a size ranging from the lower end portion to the upper end portion of the space in the casing, and is provided so as to be erected on the bottom plate 30 a of the casing 30. By this partition plate 39, the space in the casing is partitioned into a heat exchange chamber 40 in which the outdoor heat exchanger 25 and the outdoor fan 31 are accommodated, and a machine room 41 in which the compressor 23, the electrical component module 35, and the like are accommodated. ing. The heat exchange chamber 40 is located on the left side when viewed from the front side, and the machine room 41 is located on the right side when viewed from the front side. In addition, the blower outlet for blowing the air of the heat exchange chamber 40 out of a casing is opened in the front surface of the casing 30.

  The outdoor heat exchanger 25 is installed on the bottom plate 30 a of the casing 30 and has a size ranging from the lower end portion to the upper end portion of the heat exchange chamber 40. The outdoor heat exchanger 25 is formed in an L shape in plan view, and is disposed along the back side plate 30b and the left side plate 30b. The rear end portion of the partition plate 39 is coupled to the end portion of the outdoor heat exchanger 25, and the front end portion of the partition plate 39 is coupled to the front casing side plate 30b.

  As shown in FIGS. 3 and 4, the machine room 41 is formed so as to occupy the whole in the front-rear direction in the right side portion of the space in the casing. An electrical component module 35 is disposed on the front side in the machine room 41. That is, the electrical component module 35 is installed in the vicinity of the side plate 30 b in a posture in which the front surface thereof is approximately parallel to the side plate 30 b on the front side of the casing 30. Therefore, when the front side plate 30b of the casing 30 is removed, the front surface of the electrical component module 35 is exposed on the most front side. Refrigerant circuit components such as a refrigerant pipe and an accumulator 27 are disposed on the back side (rear side) of the electrical component module 35.

  The electrical component module 35 is disposed at an intermediate portion in the height direction in the machine room 41, and the upper and lower portions of the electrical component module 35 are spaces. The electrical component module 35 is coupled to the partition plate 39 at one end (left end) in the width direction, and is coupled to the side plate 30b of the casing 30 at the other end (right end).

  As shown in FIG. 5, the electrical component module 35 includes a holding member 44, a circuit board 45, and a terminal block 46. The holding member 44 includes a main member 51 configured to be coupled to the side plate 30 b and the partition plate 39 of the casing 30, and a resin-made interposing member 52 coupled to the main member 51. The main member 51 is formed by punching a proper portion of a member made of sheet metal and bending it into a predetermined shape. The main member 51 includes a rectangular main surface portion 51a, a side surface portion 51b bent from a side end portion of the main surface portion 51a, and a top surface portion 51c bent from an upper end portion of the main surface portion 51a. The interposed member 52 is coupled to the main surface portion 51 a of the main member 51, and suppresses the heat of the circuit board 45 from being transmitted to the main member 51.

  The circuit board 45 includes a rear substrate 54 (see FIG. 5) disposed on the rear surface side of the main surface portion 51a of the main member 51, and a front substrate 55 disposed on the front surface side of the main surface portion 51a of the main member 51. (See FIG. 2).

  The back substrate 54 is a first substrate portion that is a circuit board on which a plurality of electrical components 56 including power elements 56a and 56b (see FIGS. 6 and 7) and elements 56c such as capacitors other than the power elements 56a and 56b are mounted. 54a and a second substrate portion 54b, which is a circuit board on which a plurality of electrical components 56 including elements 56c other than the power elements 56a and 56b are mounted. Examples of the electrical component 56 mounted on the second substrate unit 54b include a noise filter. The second substrate portion 54b is fixed to the main member 51 so that the electrical component 56 is on the back side.

  The second substrate portion 54b is coupled to the upper portion of the main surface portion 51a of the main member 51, and the first substrate portion 54a is disposed below the second substrate portion 54b. The first substrate portion 54 a is coupled to an interposed member 52 that is coupled to the main surface portion 51 a of the main member 51. That is, the first substrate portion 54 a is indirectly coupled to the main member 51, while the second substrate portion 54 b is directly coupled to the main member 51.

  The power elements 56a and 56b provided on the first substrate portion 54a include a first power element 56a and a second power element 56b that generates less heat than the first power element 56a. That is, a plurality of power elements 56a and 56b are mounted on the first substrate portion 54a. These power elements 56a and 56b are mounted on the front surface of the first substrate portion 54a. An example of the first power element 56a is a compressor control inverter. An example of the second power element 56b is a fan motor control module. On the other hand, an electrical component 56 other than the power elements 56a and 56b is mounted on the back surface of the first substrate portion 54a. Note that the first substrate portion 54a may be configured such that only the power elements 56a and 56b are mounted, and no other electrical component 56 is mounted.

  Many electrical components (not shown) other than the power elements 56 a and 56 b are mounted on the front surface of the front substrate 55. The electrical components mounted on the front substrate 55 include electrical components that are operated by an operator during trial operation and maintenance, electrical components that can display the control operation status, and the like. The front side substrate 55 is disposed mainly on the upper side in the main surface portion 51 a of the main member 51. That is, the front substrate 55 is disposed on the main surface portion 51a at a location different from a location where a heat transfer plate 60 described later is disposed.

  As shown in FIG. 6, a heat transfer plate 60 is surface-bonded to the front surfaces of the plurality of power elements 56a and 56b mounted on the first substrate portion 54a. The heat transfer plate 60 is a flat plate-like member having a size including the positions where the plurality of power elements 56a and 56b are disposed. As shown in FIG. 7, the heat transfer plate 60 is joined to the first power element 56a and a refrigerant jacket. A main receiving portion 60a to which 37 is joined, and a heat transfer portion 60b extending from the main receiving portion 60a to which the second power elements 56b and 56b are joined. Both the first power element 56 a and the second power element 56 b are joined to the back surface (back surface) of the heat transfer plate 60. In the present embodiment, one first power element 56a is provided, and two second power elements 56b are provided so as to be lined up and down, and the second power element on the lower side is provided to the side of the first power element 56a. It arrange | positions so that the element 56b may be located. The main receiving portion 60a of the heat transfer plate 60 is formed in a horizontally long rectangular shape having a size including the first power element 56a, while the heat transfer portion 60b is continuous with the side end portion of the main receiving portion 60a. At the same time, it is formed in a rectangular shape that is longer in the vertical direction than the main receiving portion 60a. Since the heat transfer portion 60b extends upward from the main receiving portion 60a, the heat transfer plate 60 is L-shaped in front view. The heat transfer plate 60 is made of a material having high thermal conductivity such as aluminum.

  The first substrate portion 54a is coupled to the back surface of the interposition member 52 coupled to the back surface of the main surface portion 51a of the main member 51. However, the first substrate portion 54a has heat transfer to the main surface portion 51a and the interposition member 52 of the main member 51. An opening 61 (see FIG. 5) having a size capable of inserting the plate 60 is formed. The heat transfer plate 60 is exposed to the front side of the main member 51 through the opening 61. The opening 61 is L-shaped as indicated by a broken line in FIG.

  As shown in FIG. 6, a refrigerant jacket 37 is surface-bonded to the front surface (front surface) 60 c of the main receiving portion 60 a of the heat transfer plate 60. In other words, the front surface (front surface) 60c of the heat transfer plate 60 constitutes a joint surface to which the refrigerant jacket 37 is joined, and the rear surface (back surface) 37a of the refrigerant jacket 37 is joined to the joint surface 60c of the electrical component module 35. This constitutes the joint surface. The refrigerant jacket 37 is fixed to the heat transfer plate 60 by, for example, screw fastening with bolts.

  The refrigerant jacket 37 is made of a thick plate material made of a material having high thermal conductivity such as aluminum, and the refrigerant pipe 18a of the refrigerant circuit 18 is joined thereto. That is, the refrigerant jacket 37 joined to the refrigerant pipe 18 a for circulating the refrigerant in the refrigerant circuit 18 is thermally connected to the power elements 56 a and 56 b via the heat transfer plate 60. Accordingly, the refrigerant jacket 37 functions as a cooling member capable of cooling the power elements 56 a and 56 b of the electrical component module 35 by being in thermal contact with the refrigerant of the refrigerant circuit 18. The heat transfer plate 60 functions as a receiving portion that can be thermally connected to the refrigerant jacket 37.

  As shown in FIG. 8, the coolant jacket 37 is formed in a horizontally-long rectangular shape, and a groove (see FIG. 6) extending in the longitudinal direction is formed. Two grooves are provided on the upper and lower sides, and are parallel to each other. The refrigerant pipe 18 a bent in a U shape is press-fitted into the two grooves, so that the refrigerant pipe 18 a is joined to the refrigerant jacket 37. The refrigerant pipe 18 a fixed to the refrigerant jacket 37 functions as a cooling passage through which the refrigerant of the refrigerant circuit 18 flows.

  The refrigerant pipe 18 a joined to the refrigerant jacket 37 is a part of a pipe (liquid side pipe) provided between the outdoor heat exchanger 25 and the expansion valve 26 in the refrigerant circuit 18. It connects with the upper end part of a pair of piping 18b extended in an up-down direction. That is, one end of the refrigerant pipe 18a formed in the U-shape is connected to the lower end of the outdoor heat exchanger 25 via one pipe 18b extending in the vertical direction, and the other end extends in the vertical direction. The other pipe 18b is connected to the expansion valve 26. In the present embodiment, the refrigerant pipe 18a is fixed to the groove of the refrigerant jacket 37, but the present invention is not limited to this. For example, it is good also as a structure which forms two through-holes which penetrate the refrigerant | coolant jacket 37, connects a pipe to one of these, and connects a U-shaped pipe to the other.

  As shown in FIG. 8, the electrical component module 35 is provided with a terminal block 46 so as to cover the heat transfer plate 60 and the refrigerant jacket 37. The terminal block 46 covers the main receiving portion 60a of the heat transfer plate 60 and a part of the heat transfer portion 60b. The terminal block 46 is provided below the front substrate 55 on the front surface of the main surface portion 51 a of the main member 51. In other words, the coolant jacket 37 is disposed below the front substrate 55.

  The terminal block 46 includes a base portion having a front surface portion 46a, a side surface portion 46b, a top surface portion 46c (see FIG. 6), and a bottom surface portion 46d, and a terminal connection portion 46e fixed to the base portion. The front surface portion 46a is formed in a horizontally long rectangular shape, and at least covers the refrigerant jacket 37 and the refrigerant pipe 18a joined to the main receiving portion 60a. A terminal connection portion 46e is attached to the front surface (front surface) of the front surface portion 46a. The terminal connection portion 46e is connected to a power line, a signal line, and the like that are drawn from outside and are not shown.

  The side surface portion 46b is joined to both ends in the longitudinal direction of the front surface portion 46a, and is provided so as to be perpendicular to the front surface portion 46a. The side surface portion 46b is pin-coupled to the main member 51 of the holding member 44, and the terminal block 46 is rotatable around this pin. The terminal block 46 has a drooping posture in which the front surface 46a of the base is vertical and the front surface (outer surface) faces forward, and the front surface (outer surface) faces upward from the drooping posture with the pin as a center. And a horizontal posture in which the front surface portion 46a is horizontal. The terminal block 46 forms a predetermined space with the main member 51 so that the refrigerant jacket 37 can be accommodated between the main surface portion 51 a of the main member 51 and the heat transfer plate 60 when the base portion is in the hanging posture. . And the terminal block 46 can open and close the space which accommodates the refrigerant | coolant jacket 37 by rotating. In other words, the terminal block 46 opens and closes a space that covers the main receiving portion 60 a of the heat transfer plate 60. Since the terminal block 46 is rotatable, it is possible to reduce time and labor at the time of work such as the work of attaching the refrigerant jacket 37.

  The top surface portion 46c is connected to a part of the upper end portion of the front surface portion 46a, and is horizontally oriented when the base portion is in the hanging posture. As the base portion rotates from the hanging posture toward the horizontal posture, the top surface portion 46c rotates downward.

  The bottom surface portion 46d is horizontally oriented at a position below the refrigerant jacket 37 when the base portion is in the hanging posture. The bottom surface portion 46d is provided leaving a passage space for the upper and lower pipes 18b, and comes into contact with the holding member 44 in the hanging posture.

  On the upper side of the terminal block 46, a cover portion 48 is provided to cover a portion of the heat transfer portion 60b located above the main receiving portion 60a.

  On the left side surface portion 51b of the electrical component module 35, first engaging members 71 are attached at two locations, upper and lower. In addition, the partition plate 39 is provided with second engagement members 81 that are respectively engaged with the first engagement members 71 at two locations, upper and lower. The first engagement member 71 and the second engagement member 81 are members for safely and accurately guiding the electrical component module 35 to a predetermined arrangement position. The second engagement member 81 has a guide portion 81a extending in the vertical direction, and the electrical component module 35 is located along the guide portion 81a of the second engagement member 81 when installed in the casing 30. You will be guided downwards. The lower end portion of the guide portion 81a of the second engagement member 81 is configured to hold the first engagement member 71 so that the electrical component module 35 is held at a predetermined arrangement position. That is, when the first engagement member 71 reaches the lower end portion of the guide portion 81a, the first engagement member 71 is maintained at that position without being further lowered.

  As shown in FIGS. 9 and 10, the main member 51 of the holding member 44 is provided with a slide rail 87 that is used when the cover 85 (see FIGS. 11 and 12) is removed. The cover 85 is for protecting the coating agent 95 (see FIG. 13) used to ensure surface contact between the heat transfer plate 60 and the refrigerant jacket 37, and is removed when the outdoor unit 11 is assembled. FIG. 9 shows a state after the cover 85 is removed, and shows a state where the slide rail 87 is exposed.

  The slide rail 87 is integrally formed with a resin frame member 88 fixed to the heat transfer plate 60. The frame member 88 includes a pair of vertical portions 89 extending in the vertical direction and a pair of horizontal portions 90 extending in the left-right direction so as to connect the ends of the vertical portions 89, and is configured in a rectangular frame shape. Has been. The coating agent 95 is applied to the front surface 60 c inside the frame member 88. The frame member 88 is formed so as to surround the refrigerant jacket 37, the pair of lateral portions 90 are disposed so as to contact the upper surface and the lower surface of the refrigerant jacket 37, and the pair of longitudinal portions 89 are It arrange | positions so that the left-right side surface of the refrigerant | coolant jacket 37 may be contact | connected.

  The vertical portion 89 and the horizontal portion 90 protrude from the heat transfer plate 60 by a predetermined height. This protruding height is a height corresponding to a guided portion 85b of a cover 85 described later. The longitudinal portion 89 is formed with a notch 89a for preventing interference with the refrigerant pipe 18a. This notch part 89a is formed in two places up and down, and each notch part 89a has a shape recessed in an arc shape corresponding to the outer peripheral surface of the refrigerant pipe 18a.

  The slide rail 87 extends in the vertical direction so as to be along the vertical direction portion 89 on the outside of the vertical direction portions 89. The outer surface 87a of the slide rail 87 is a slidable contact surface with which the guided portion of the cover 85 is slidably contacted. Further, a recess 87 b is formed on the front side surface of the slide rail 87 at a position corresponding to the notch 89 a of the vertical direction portion 89. The recess 87b is also for preventing interference with the refrigerant pipe 18a.

  The slide rail 87 is formed with an engaging recess 87c at an intermediate position in the length direction. The engaging recess 87c is formed in a shape that is recessed inward in the left-right direction from the outer surface 87a of the slide rail 87 on which the guided portion 85b of the cover 85 slides.

  As shown in FIG. 11, the cover 85 includes a substantially rectangular cover main body 85a and a guided portion 85b extending from a side end portion of the cover main body 85a in a direction perpendicular to the cover main body 85a. The cover body 85a is formed in a rectangular shape that is slightly larger than the frame member 88 so that the frame member 88 can be covered. In a state where the cover 85 is assembled to the frame member 88, the inner surface of the cover main body 85 a comes into contact with the front end surfaces of the vertical direction portion 89 and the horizontal direction portion 90. At this time, a gap is formed between the cover main body 85a and the heat transfer plate 60. The guided portions 85b formed at the left and right ends of the cover main body 85a can be in sliding contact with the outer surface 87a of the slide rail 87.

  Each guided portion 85 b is provided with a claw portion 85 c that can be engaged with the engaging recess 87 c of the slide rail 87. The claw portion 85c protrudes from the tip end portion of the guided portion 85b toward the other guided portion 85b. When the cover 85 is attached to the slide rail 87, each claw portion 85c enters the corresponding engagement recess 87c.

  The cover 85 is provided with an inclined portion 85d so as to be connected to the lower end portion of the cover main body 85a. The inclined portion 85d is inclined to the side where the guided portion 85b protrudes with respect to a virtual plane including the cover body 85a. As shown in FIG. 12, the inclined portion 85 d is formed in a size that can substantially cover the lower side portion 90 on the lower side of the frame member 88 and extends to a position close to the heat transfer plate 60. Has been. FIG. 12 shows a state at a stage after the electrical component module 35 is set in the outdoor unit 11 and before the cover 85 is removed.

  The inclined portion 85d is provided with a hook portion 85e. The hook portion 85e is formed with a through-hole having a size into which a finger can be inserted. The hooking portion 85e is used for an operator to hook and pull a finger when removing the cover 85.

  Here, a method of coupling the electrical component module 35 and the refrigerant jacket 37 in the manufacturing process of the outdoor unit 11 of the air conditioner 10 of the present embodiment will be described.

  Before explaining the process of assembling the electrical component module 35 to the outdoor unit 11, first, the main points of the manufacturing process of the electrical component module 35 itself will be explained. In the manufacturing process of the electrical component module 35, the front substrate 55 is attached to the front surface of the holding member 44, and the back substrate 54 (first substrate portion 54 a and second substrate portion 54 b) is attached to the back surface of the holding member 44. At this time, the heat transfer plate 60 joined to the power elements 56 a and 56 b is inserted into the opening 61 of the main member 51 and the interposition member 52 from the back side, and the heat transfer plate 60 protrudes to the front surface of the holding member 44. Like that.

  And the coating agent 95 (refer FIG. 13) is apply | coated to the area | region inside the frame member 88 in the front surface 60c of the heat exchanger plate 60. FIG. The coating agent 95 is a semi-solid sticky material such as grease, and is for ensuring close contact when the front surface 60 c of the heat transfer plate 60 is surface-bonded to the refrigerant jacket 37. Then, the cover 85 is attached so that the area coated with the coating agent 95 is hidden. The cover 85 is attached to the slide rail 87 so that the claw portion 85c of the guided portion 85b fits into the engagement recess 87c of the slide rail 87. At this time, the guided portion 85 b of the cover 85 slides on the outer surface 87 a of the slide rail 87, and a predetermined gap is formed between the cover main body 85 a and the coating surface of the coating agent 95. Therefore, there is no worry that the coating 95 is scraped off.

  Subsequently, when assembling the electrical component module 35 to the outdoor unit 11, first, the partition plate 39, components of the refrigerant circuit, and the like are disposed on the bottom plate 30 a serving as a base and held at a predetermined position. The components of the refrigerant circuit 18 include, for example, an outdoor heat exchanger 25, a compressor 23, an oil separator 24, an expansion valve 26, an accumulator 27, a four-way switching valve 28, a pipe 18a, and the like. Of course, a refrigerant jacket 37 is attached to the pipe 18a. At this time, the electrical component module 35 is not yet disposed on the bottom plate 30a.

  In a state before the electrical component module 35 is disposed on the bottom plate 30a, a space of a predetermined size is provided at a position where the electrical component module 35 is to be disposed, and the refrigerant jacket is located on the front side of the space. 37 and refrigerant piping 18a are arranged. The arrangement position of the refrigerant jacket 37 before the electric component module 35 is arranged is such that the back surface 37a of the refrigerant jacket 37 is transmitted to the electric component module 35 when the electric component module 35 is arranged at a predetermined arrangement position. The position is adjusted so as to be in surface contact with the application surface of the coating 95 of the hot plate 60 or in the vicinity thereof.

  Then, by sliding the first engagement member 71 along the guide portion 81a of the second engagement member 81 from the top to the bottom, the electrical component module 35 is moved to a predetermined arrangement planned position. At this time, the electrical component module 35 slides from the upper side to the lower side so that the inclined portion 85d of the cover 85 is at the head. For this reason, even if the cover 85 may come into contact with the refrigerant jacket 37, the refrigerant jacket 37 is guided to the near side (side away from the heat transfer plate 60) by the inclined portion 85 d of the cover 85. Thus, the electrical component module 35 can be smoothly slid to a predetermined arrangement position without becoming an obstacle. In addition, the refrigerant | coolant piping 18a with which the refrigerant | coolant jacket 37 was couple | bonded is supported by the up-and-down piping 18b so that a displacement in the front-back direction is possible. For this reason, even if the cover 85 and the refrigerant jacket 37 collide, the refrigerant jacket 37 can be easily retracted.

  When the first engaging member 71 reaches the lower end of the guide portion 81a, the electrical component module 35 does not fall further in this state. Therefore, the electrical component module 35 is in a temporarily fixed state held by the partition plate 39 that is a member fixed to the casing 30 or the casing 30. At this time, the electrical component module 35 is in a predetermined scheduled position, and as shown in FIG. 13, the coating area of the coating agent 95, that is, the front surface (outer surface) of the cover 85 faces the back surface 37 a of the refrigerant jacket 37.

  Subsequently, the cover 85 is removed from the electrical component module 35. That is, the cover 85 is pulled downward by hooking a finger or the like on the hooking portion 85 e of the cover 85. By doing so, the claw portion 85c of the cover 85 is disengaged from the engaging recess 87c, so that the guided portion 85b can be slid along the outer surface 87a of the slide rail 87. At this time, the cover 85 slides in the gap between the refrigerant jacket 37 and the heat transfer plate 60. Thereby, the cover 85 can be removed from the electrical component module 35. At this time, a gap is formed between the front surface 60c of the heat transfer plate 60 and the cover 85, and the region where the coating agent 95 is applied is surrounded by the frame member 88, and the coating agent 95 is applied. Since the cover 85 is slid along the slide rail 87 in a state where a gap between the cover area and the cover 85 is secured, there is no concern that the cover 85 scrapes the coating agent 95 when the cover 85 is removed.

  Then, the refrigerant jacket 37 is displaced to the back side, and as shown in FIG. 14, the refrigerant jacket 37 and the heat transfer plate 60 are brought into close contact with each other. In this state, the refrigerant is applied to the heat transfer plate 60 using a fastener such as a bolt. The jacket 37 is fixed. At this time, the refrigerant jacket 37 and the heat transfer plate 60 are in close contact with each other via the coating agent 95. Then, after rotating the terminal block 46 from the horizontal posture to the hanging posture, a predetermined wiring such as a signal line is connected to the terminal connection portion 46e of the terminal block 46. In this manner, the electrical component module 35 can be installed in the outdoor unit casing 30.

  Here, the operation | movement operation | movement of the air conditioning apparatus 10 of this embodiment is demonstrated.

  In the air conditioner 10, when the cooling operation is performed, the four-way switching valve 28 is switched to the first state. The refrigerant compressed by the compressor 23 is separated by the oil separator 24 and then flows into the outdoor heat exchanger 25 via the four-way switching valve 28. This refrigerant is condensed by exchanging heat with outdoor air in the outdoor heat exchanger 25 and becomes a liquid refrigerant. The liquid refrigerant flows upward in one pipe 18 b extending in the vertical direction, and then flows through the refrigerant pipe 18 a fixed to the refrigerant jacket 37. At this time, if the power elements 56a and 56b generate heat by driving the compressor 23 and the fan motor, the heat transfer plate 60 is heated by the heat generated by the power elements 56a and 56b, but the refrigerant flowing through the refrigerant pipe 18a The heated heat transfer plate 60 is cooled.

  The refrigerant that has flowed through the refrigerant pipe 18 a flows downward through the other pipe 18 b that extends in the vertical direction, and then is decompressed by the expansion valve 26 and flows into the indoor heat exchanger 20. This refrigerant is vaporized by exchanging heat with indoor air in the indoor heat exchanger 20. The indoor air is cooled and blown into the room by this heat exchange. The refrigerant heated and evaporated by the room air flows into the accumulator 27 via the four-way switching valve 28. In the accumulator 27, the refrigerant is gas-liquid separated, and the gas refrigerant separated here is sucked into the compressor 23. During the cooling operation, the refrigerant circulation is continuously performed.

  On the other hand, during the heating operation, the four-way switching valve 28 is switched to the second state. The refrigerant discharged from the compressor 23 is introduced into the indoor heat exchanger 20 via the oil separator 24 and the four-way switching valve 28. In the indoor heat exchanger 20, the refrigerant is condensed by exchanging heat with room air. By this heat exchange, the room air is heated and blown into the room. The refrigerant cooled and condensed by the indoor air is expanded by the expansion valve 26, and then flows upward through one pipe 18 b extending in the vertical direction, and then flows through the refrigerant pipe 18 a fixed to the refrigerant jacket 37. At this time, the heat transfer plate 60 heated by the heat generated by the power elements 56a and 56b is cooled.

  The refrigerant that has flowed through the refrigerant pipe 18 a flows downward through the other pipe 18 b extending in the vertical direction, is then introduced into the outdoor heat exchanger 25, evaporates, and passes through the four-way switching valve 28 to the accumulator 27. Inflow. The gas refrigerant separated here is sucked into the compressor 23. This refrigerant circulation is continuously performed during the heating operation.

  As described above, in the present embodiment, the cover 85 is provided on the electrical component module 35 in which the coating 95 is applied to the front surface 60 c of the heat transfer plate 60 so that a gap is formed between the electrical coating module 95 and the coating 95. The front surface 60c of the heat transfer plate 60 of the electrical component module 35 and the rear surface 37a of the refrigerant jacket 37 are opposed to each other so that the cover 85 is sandwiched therebetween. In this state, the cover 85 is removed and the electrical component module 35 and the refrigerant jacket are disposed. 37 is joined. For this reason, until the electrical component module 35 and the refrigerant jacket 37 are arranged to face each other, the presence of the cover 85 causes the coating agent 95 to adhere to an unintended place during the manufacturing process, or dust to adhere to the coating agent 95. It can prevent adhering. In addition, since a gap is formed between the cover 85 and the coating agent 95 and the cover 85 is separated from the coating agent 95, the coating agent 95 is scraped off by the cover 85 when the cover 85 is removed. This can also be avoided. Furthermore, when removing the cover 85, the front surface 60c of the electrical component module 35 and the back surface 37a of the refrigerant jacket 37 are in opposition to each other. Just make it happen. In this respect as well, the coating agent 95 can be avoided from being scraped off.

  Moreover, in this embodiment, when the cover 85 is removed, the cover 85 is slid along the slide rail 87, so that the cover 85 moves along a predetermined route. For this reason, it is possible to avoid accidentally passing the place where the coating agent 95 is applied when the cover 85 is removed, thereby reliably preventing the coating agent 95 from being scraped off when the cover 85 is removed. it can.

  In the present embodiment, the components of the refrigerant circuit 18 are set on the bottom plate 30a of the casing 30 to hold the refrigerant jacket 37 in a predetermined position, and the front surface 60c of the heat transfer plate 60 faces the back surface 37a of the refrigerant jacket 37. The electrical component module 35 is slid along the rail 87 until it is done. For this reason, the refrigerant jacket 37 to which the refrigerant pipe 18a is joined can be thermally joined to the electrical component module 35, and heat generated by the electrical component module 35 can be transferred to the refrigerant in the refrigerant pipe 18a. It becomes.

  In the present embodiment, the cover 85 is provided with the inclined portion 85d, and the electrical component module 35 is moved so that one end portion provided with the inclined portion 85d is closer to the refrigerant jacket 37. For this reason, even when the cover 85 may come into contact with the refrigerant jacket 37 when the electrical component module 35 is slid, the refrigerant jacket 37 to which the cover 85 is not attached is guided by the presence of the inclined portion 85d. It will be. Therefore, the work at the time of sliding of the electrical component module 35 can be facilitated.

  In the present embodiment, the electrical component module 35 is held with the front surface 60c of the heat transfer plate 60 of the electrical component module 35 and the rear surface 37a of the refrigerant jacket 37 facing each other, and the cover 85 is removed in this state. When the 85 is removed, the electrical component module 35 is temporarily fixed to the refrigerant jacket 37. For this reason, the trouble of the operation | work which removes the cover 85 can be reduced.

Second Embodiment
FIG. 15 is a front view of the outdoor unit 11 of the air-conditioning apparatus 10 according to the second embodiment of the present invention, and FIG. 16 is a perspective view showing the electrical component module 35 and the surrounding structure. FIG. 17 is a cross-sectional view for explaining the arrangement of the cover 85, the refrigerant jacket 37, and the electrical component module 35, and FIG. 18 is an exploded perspective view for explaining these arrangements. FIG. 19A is a front view showing a refrigerant jacket according to the second embodiment, and FIG. 19B is a cross-sectional view taken along the line AA.

  As shown in FIGS. 15 to 19, the second embodiment is different from the first embodiment in that a cover 85 is attached to the electrical component module 37 so as to cover the refrigerant jacket 37 from the front surface 37 b side. . That is, in the second embodiment, the cover 85 is once removed from the front surface 60c of the heat transfer plate 60 of the electrical component module 35 in the same manner as in the first embodiment, and the front surface 60c and the rear surface 37a of the refrigerant jacket 37 are in contact with each other. After being combined, it is attached to the electrical component module 37 again as described later. Other portions are denoted by the same reference numerals as those in the first embodiment, and description thereof is omitted.

  In the second embodiment, the cover 85 protects the front surface 60c of the electrical component module 35 coated with the coating agent 95 when the electrical component module 35 is assembled inside the casing 30 of the outdoor unit 11. In addition to the same function, the following two functions are provided. That is, as will be described later, the cover 85 suppresses heat exchange on the front surface 37b side of the refrigerant jacket 37 and transfers to the rear surface 37a of the refrigerant jacket 37 during normal operations such as cooling operation and heating operation of the air conditioner 10. The heat plate 60 has a function of improving the efficiency of heat exchange with the front surface 60c. Further, the cover 85 has a function of protecting the front surface 60c of the heat transfer plate 60 of the electrical component module 35 by attaching it to the electrical component module 35 removed from a predetermined arrangement position at the time of service such as inspection and repair. Yes.

  The refrigerant jacket 37 has a horizontally long rectangular shape, and two grooves 37c extending in the longitudinal direction (width direction) of the refrigerant jacket 37 are vertically arranged on the front surface 37b in the same manner as in the first embodiment. Yes. A part (rear side part) of the refrigerant pipe 18a is press-fitted into each of the grooves 37c. That is, the rear side portion of the refrigerant pipe 18a is disposed in the groove 37c, and the front side portion of the refrigerant pipe 18a is exposed to the outside of the groove 37c.

  On the front surface 37b of the coolant jacket 37, a recess 37d is formed between the two grooves 37c. The recess 37d is recessed toward the back surface 37a of the coolant jacket 37 and extends in the longitudinal direction. On both sides of the concave portion 37d in the longitudinal direction, through holes 37e penetrating the refrigerant jacket 37 in the thickness direction are formed. The heat transfer plate 60 is provided with unillustrated screw holes at positions corresponding to the through holes 37e. The refrigerant jacket 37 is fixed to the electrical component module 35 by the bolts 91 being inserted into the through holes 37e and screwed into the screw holes.

  The cover 85 is disposed so as to cover the front surface 37 b of the refrigerant jacket 37. The cover 85 includes a substantially rectangular cover main body 85a, a pair of guided portions 85b extending from the side end of the cover main body 85a in a direction perpendicular to the cover main body 85a, and the vertical from the upper end of the cover main body 85a. Extending part 85f extending in any direction, and an inclined part (extending part) 85d extending obliquely downward from the lower end of cover body 85a. The guided portion 85b, the extending portion 85f, and the inclined portion 85d are each extended from the cover body 85a to the electrical component module 37 side.

  The cover body 85 a is formed in a rectangular shape that is slightly larger than the refrigerant jacket 37 so that the refrigerant jacket 37 can be covered. The length of each guided portion 85b in the extending direction is larger than the guided portion 85b of the cover 85 of the first embodiment so that the side surface of the refrigerant jacket 37 can be covered.

  Each guided portion 85b is provided with two arc-shaped cutout portions 85g in which the refrigerant pipe 18a is disposed, one above the other. These notches 85g have an inner diameter slightly larger than the outer diameter of the refrigerant pipe 18a so that the refrigerant pipe 18a can be disposed therein.

  Each guided portion 85 b is provided with a claw portion 85 c that can be engaged with the engaging recess 87 c of the slide rail 87. The claw portion 85c protrudes from the tip end portion of the guided portion 85b toward the other guided portion 85b. When the cover 85 is attached to the slide rail 87, each claw portion 85c enters the corresponding engagement recess 87c.

  In a state where the cover 85 is assembled to the frame member 88, the inner surface of the cover main body 85a is disposed with a gap from the refrigerant jacket 37 and the refrigerant pipe 18a. A part of the refrigerant pipe 18a is covered with the cover 85 together with the refrigerant jacket 37, and the other part extends outside the cover 85 through the notch 85g.

  The inclined portion 85d is inclined to the side where the guided portion 85b protrudes with respect to a virtual plane including the cover body 85a. That is, the inclined portion 85d extends toward the electrical component module 35 obliquely downward. The inclined portion 85d is formed in a size that can substantially cover the lower end portion of the refrigerant jacket 37, as shown in FIG.

  The inclined portion 85d is provided with a hook portion 85e. The hook portion 85e is formed with a through-hole having a size into which a finger can be inserted. The hooking portion 85e is used for an operator to hook and pull a finger when removing the cover 85.

  The thermal conductivity of the cover 85 is lower than the thermal conductivity of the members constituting the front surface 60c of the heat transfer plate 60. The heat transfer plate 60 is made of a material having high thermal conductivity such as aluminum, and the cover 85 is made of a material having lower heat conductivity than the heat transfer plate 60. Examples of the material constituting the cover 85 include synthetic resins such as polyethylene, polypropylene, polyvinyl chloride, and polycarbonate.

  As shown in FIG. 15, the compressor 23, which is a device that generates heat during operation, is disposed below the refrigerant jacket 37, that is, below the inclined portion 85 d of the cover 85.

  As shown in FIG. 19, the refrigerant jacket 37 has a plurality of holes 37 f penetrating in the thickness direction of the refrigerant jacket 37 in the recess 37 d. These holes 37f are arranged along the longitudinal direction of the recess 37d. Since the hole 37f can be formed by press working, the processing cost at the time of hole formation can be kept low.

  By the way, when the refrigerant jacket 37 does not have the plurality of holes 37f as described above, when the front surface 60c of the heat transfer plate 60 and the rear surface 37a of the refrigerant jacket 37 are surface-joined, air is interposed between them. May remain. When the air pool is formed in this way, the coating 95 is pushed away around the air pool by the air pool, and the coating 95 does not adhere to the front surface 60c of the heat transfer plate 60 as shown in FIG. Alternatively, there may be a portion 95a in which the coating amount of the coating agent 95 is small.

  On the other hand, in the second embodiment, since the plurality of holes 37f are provided in the refrigerant jacket 37, air hardly remains between the front surface 60c of the heat transfer plate 60 and the rear surface 37a of the refrigerant jacket 37. That is, when the front surface 60c of the heat transfer plate 60 and the rear surface 37a of the refrigerant jacket 37 are surface-joined, the plurality of holes 37f function as a passage for releasing air between them. Thereby, as shown in FIG. 20A, the adhesion state of the coating agent 95 can be kept good on the front surface 60c of the heat transfer plate 60.

  Next, a method for connecting the electrical component module 35 and the refrigerant jacket 37 in the second embodiment will be described. First, the electrical component module 35 itself is manufactured in the same manner as in the first embodiment. A cover 85 is attached to the electrical component module 35, and the front surface 60 c of the heat transfer plate 60 is covered with the cover 85.

  Subsequently, as in the first embodiment, the electrical component module 35 is assembled at a predetermined arrangement position of the outdoor unit 11. In this arrangement position, the front surface 60 c of the heat transfer plate 60 of the electrical component module 35 faces the back surface 37 a of the refrigerant jacket 37.

  Subsequently, after removing the cover 85 from the electrical component module 35 in the same manner as in the first embodiment, the refrigerant jacket 37 is displaced to the back side so that the refrigerant jacket 37 and the heat transfer plate 60 are brought into close contact with each other. The refrigerant jacket 37 is fixed to the heat transfer plate 60 using bolts 91.

  In the second embodiment, subsequently, the cover 85 once removed is reattached to the electrical component module 35 so that the refrigerant jacket 37 is hidden from the front surface 37b side of the refrigerant jacket 37. At the time of attachment, the cover 85 is covered so as to cover the front surface 37 b of the refrigerant jacket 37, and the claw portion 85 c of the guided portion 85 b is fitted into the engaging recess 87 c of the slide rail 87. Thereby, the cover 85 is fixed to the electrical component module 35.

  Subsequently, the front surface of the cover 85 is covered with the terminal block 46. When the terminal block 46 and the refrigerant jacket 37 are made of, for example, metal and the cover 85 is made of, for example, synthetic resin, a cover 85 having low thermal conductivity is interposed between the terminal block 46 and the refrigerant jacket 37. The refrigerant jacket 37 can be prevented from exchanging heat with the terminal block 46.

  Next, a method for removing the electrical component module 35 from the position where the outdoor unit 11 is disposed at the time of service such as inspection and repair will be described. At the time of this service, first, the cover 85 is removed from the electrical component module 35. Next, the bolt 91 fixing the refrigerant jacket 37 to the electrical component module 35 is removed, the refrigerant jacket 37 is displaced to the front side, and the rear surface 37 a of the refrigerant jacket 37 is pulled away from the front surface 60 c of the heat transfer plate 60. Next, the electrical component module 35 is removed from the predetermined arrangement position of the outdoor unit 11 in the reverse order of the assembly of the electrical component module 35 described above.

  Subsequently, the cover 85 removed from the electrical component module 35 as described above is attached to the electrical component module 35 again. The cover 85 is attached to the slide rail 87 so that the claw portion 85c of the guided portion 85b fits into the engagement recess 87c of the slide rail 87. Thereby, the area | region where the coating agent 95 of the front surface 60c of the heat exchanger plate 60 was applied is covered with the cover 85.

  As described above, since the area where the coating agent 95 is applied is protected by the cover 85, the electrical component module 35 is transported during service, the electrical component module 35 is temporarily stored, or one of the electrical component modules 35 is stored. When repairing a portion, it is possible to prevent the coating agent 95 from adhering to an unintended place or dust from adhering to the coating agent 95.

  As described above, in the second embodiment, the cover 85 is removed from one of the electrical component module 35 and the refrigerant jacket 37, the front surface 60c of the heat transfer plate 60 and the rear surface 37a of the refrigerant jacket 37 are surface-joined, and then removed. The covered cover 85 is attached to the electrical component module 35 again. Therefore, the cover 85 is attached to the electrical component module 35 during normal use of the apparatus. On the other hand, at the time of service such as inspection and repair, the cover 85 can be attached to the electrical component module 35 again after separating the front surface 60c and the rear surface 37a that are surface-bonded. As a result, even when the electrical component module 35 is removed from a predetermined installation position at the time of service or the like, the coating agent 95 is prevented from adhering to an unintended place or dust from adhering to the coating agent 95. it can.

  In the second embodiment, a cover 85 is provided so as to cover the front surface 37 b of the refrigerant jacket 37. Therefore, during normal use of the apparatus, the back surface 37a of the refrigerant jacket 37 exchanges heat with the front surface 60c of the electrical component module 35, while heat exchange with air and other members is suppressed on the front surface 37b. That is, by covering the front surface 37b of the refrigerant jacket 37 with the cover 85, air convection in the vicinity of the front surface 37b can be suppressed. As a result, heat exchange at the front surface 37b is suppressed, so that the refrigerant jacket 37 is mainly heat-exchanged between the back surface 37a and the joint surface 60c of the electrical component module 35, and the electrical component module 35 is Cooling can be performed more efficiently.

  Further, in the second embodiment, the thermal conductivity of the cover 85 is lower than the thermal conductivity of the members constituting the heat transfer plate 60 of the electrical component module 35, so that heat conduction through the cover 85 can be suppressed. . Thereby, since heat exchange in the front surface 37b of the refrigerant jacket 37 is further suppressed, the efficiency of heat exchange between the rear surface 37a of the refrigerant jacket 37 and the joint surface 60c of the electrical component module 35 can be further improved.

  In the second embodiment, an inclined portion 85 d that extends toward the electrical component module 35 is provided at the lower end portion of the cover 85 so as to cover the lower end portion of the refrigerant jacket 37. Therefore, even when a device that generates heat during operation, such as the compressor 23, is disposed below the refrigerant jacket 37, hot air from the compressor 23 directly hits the refrigerant jacket 37 during operation. Can be suppressed. Thereby, it can suppress that the efficiency in which the refrigerant | coolant jacket 37 cools the electrical component module 35 falls. Further, since the inclined portion 85d extends obliquely downward toward the electrical component module 35, hot air from the compressor 23 easily flows along the inclined portion 85d. Thereby, since hot air can be suppressed from staying below the inclined portion 85d, it is possible to further suppress a decrease in cooling efficiency.

  In the second embodiment, the cover 85 has a notch 85g into which the refrigerant pipe 18a is fitted at one end thereof, and a part of the refrigerant pipe 18a is covered with the cover 85 together with the refrigerant jacket 37. The other part extends outside the cover 85 through the notch 85g. Therefore, the gap between the cover 85 and the refrigerant pipe 18a can be reduced. Thereby, since it can suppress that the hot air from the compressor 23 enters into the space between the cover 85 and the refrigerant | coolant jacket 37 through the said clearance gap, the fall of cooling efficiency can further be suppressed.

<Other embodiments>
Note that the present invention is not limited to the above-described embodiment, and various modifications and improvements can be made without departing from the spirit of the present invention.

  For example, as shown in FIG. 22, a space S for storing the coating agent 95 is provided along the peripheral edge of the region where the back surface 37 a of the refrigerant jacket 37 and the front surface 60 c of the heat transfer plate 60 are surface-bonded. Also good. In this embodiment, the space S is surrounded by the refrigerant jacket 37, the heat transfer plate 60, and the frame member 88.

  When the front surface 60c of the heat transfer plate 60 and the rear surface 37a of the refrigerant jacket 37 are surface-bonded, the coating agent 95 is pushed and moved to the peripheral edge side of the surface-bonding region by the pressure at the time of surface bonding. The agent 95 may protrude from the peripheral edge. Thus, when the coating agent 95 protrudes from a peripheral part, malfunctions, such as the coating agent 95 adhering to other components at the time of manufacture, may arise.

  On the other hand, in the form shown in FIG. 22, since the space S is provided along the peripheral edge portion, even if the coating agent 95 protrudes from the peripheral edge portion of the surface bonding region, the protruding coating agent 95 remains in the space S. Can be stored. Since the space S is surrounded by, for example, the refrigerant jacket 37, the heat transfer plate 60, and the frame member 88, it is possible to prevent the coating agent 95 protruding from other parts from adhering during manufacturing or the like. The space S may be formed over the entire periphery of the periphery of the surface-bonded region, or may be formed only in the upper and lower edges of the surface-bonded region or may be surface-bonded. It can also be formed only on the side edge of the region.

  In the embodiment, the example in which the refrigerant jacket 37 is used as the cooling member to be joined to the electrical component module 35 has been described. Instead, the cooling member is constituted by a heat sink having a large number of fins. Also good.

  In the embodiment, the example in which the coating 95 is applied to the heat transfer plate 60 has been described. Instead, the coating 95 is applied to the back surface 37a of the refrigerant jacket 37, and the cover 85 is applied to the refrigerant jacket 37. You may make it attach.

  Moreover, although the said embodiment demonstrated the method to slide from the top to the bottom when installing the electrical component module 35 in a predetermined arrangement | positioning position, it is not restricted to this. For example, the electrical component module 35 may be slid sideways (left and right direction) and set at a predetermined position. Further, if there is a space, the electrical component module 35 may be slid forward from the back side.

  Further, the slide rail 87 may be configured separately from the frame member 88.

  Further, the slide rail 87 may be provided with a claw portion, and the cover 85 may be provided with an engaging recess.

  Further, the method of forming the slide rail 87 in a shape extending in the vertical direction and removing the cover 85 by pulling it downward has been described. However, the rail 87 is formed in a shape extending in the left-right direction and slid sideways. You may make it remove.

  In the second embodiment, after removing the electrical component module 35 from a predetermined position at the time of service such as inspection and repair, the cover 85 is attached to the electrical component module 35 and the joining surface (front surface) 60c is set. Although the case of protecting has been described as an example, the cover 85 may be attached to the refrigerant jacket 37 to protect the joint surface (back surface) 37a.

  Furthermore, in the present invention, it is more preferable that the cover 85 can be attached to both the electrical component module 35 and the refrigerant jacket 37 after the electrical component module 35 is removed from a predetermined arrangement position. In this case, both the electrical component module 35 and the refrigerant jacket 37 are provided with an attachment portion (for example, a configuration like the above-described engagement recess 87c) to which the cover 85 can be attached. Accordingly, for example, the higher one of the joint surfaces 60c of the electrical component module 35 and the joint surface 37a of the refrigerant jacket 37 that should be protected according to the service content is selected, and the cover 85 is attached to the electrical component module 35. Alternatively, it can be attached to the refrigerant jacket 37.

  Further, although the terminal block 46 is configured to rotate, the terminal block 46 may be fixed.

  Moreover, although the said embodiment showed the structure by which the two outdoor fans 31 were arrange | positioned up and down, it is not restricted to this, For example, it is good also as a structure provided with one outdoor fan 31. FIG.

  In the above embodiment, the air conditioner is capable of both the cooling operation and the heating operation. However, the present invention is not limited to this. For example, the air conditioner may perform only the cooling operation, or may be the heating operation. It may be an air conditioner that performs only the above.

18 Refrigerant circuit 18a Refrigerant piping 30a Bottom plate (an example of a base)
35 Electrical component module 37 Refrigerant jacket (an example of a cooling member)
37a Rear surface 60 Heat transfer plate 60c Front surface 85 Cover 85d Inclined portion 87 Slide rail 95 Coating agent

Claims (12)

The electrical component module (35) having the joint surface (60c) and the cooling member (37) having the joint surface (37a) surface-joined to the joint surface (60c) of the electrical component module (35) are coupled to each other. A method,
A coating agent (95) is applied to one of the joining surface (60c) of the electrical component module (35) and the joining surface (37a) of the cooling member (37),
A cover (85) is formed on one of the electrical component module (35) and the cooling member (37) coated with the coating agent (95) so that a gap is formed between the coating agent (95). Provided,
The joint surface (60c) of the electrical component module (35) and the joint surface (37a) of the cooling member (37) are opposed to each other with the cover (85) interposed therebetween, and the electrical component module (35) is in this state. The cover (85) is removed from one of the cooling members (37) by sliding along the slide rail (87) provided on one of the electrical component module (35) and the cooling member (37). ,
The electrical component module and the cooling member coupling method, wherein the joint surface (60c) of the electrical component module (35) and the joint surface (37a) of the cooling member (37) are surface joined. The cooling member (37) cools the joint surface (37a) with the refrigerant of the refrigerant circuit (18),
The components of the refrigerant circuit (18) are set on a base (30a) to hold the cooling member (37) in a predetermined position, and the electrical component module is placed on the joint surface (37a) of the cooling member (37). to the joining surfaces of the (35) (60c) is opposed, binding method of the electrical equipment module and the cooling member according to claim 1 for the sliding electrical equipment module (35). An inclined part (85d) is provided at one end of the cover (85), and the electrical component module (35) and the above-mentioned one end provided with the inclined part (85d) are on the side closer to the other party. The method of combining the electrical component module and the cooling member according to claim 1 or 2 , wherein the electrical component module (35) is opposed to the cooling member (37) by relatively moving the cooling member (37). The electrical component module (35) is held in a state where the joint surface (60c) of the electrical component module (35) and the joint surface (37a) of the cooling member (37) are opposed to each other, and the cover is covered in this state. The method of combining the electrical component module and the cooling member according to any one of claims 1 to 3 , wherein (85) is removed. After joining the joint surface (60c) of the electrical component module (35) and the joint surface (37a) of the cooling member (37), the cover (85) is connected to the electrical component module (35) and the cooling member. The method of combining the electrical component module and the cooling member according to any one of claims 1 to 4 , wherein the electrical component module is attached to one of (37). An air conditioner having a refrigerant circuit (18),
An electrical component module (35) capable of controlling the refrigerant circuit (18) and having a joint surface (60c);
A cooling member (37) having a joint surface (37a);
A coating agent (95) interposed between the joint surface (60c) of the electrical component module (35) and the joint surface (37a) of the cooling member (37);
One of the said electrical component module (35) and the said cooling member (37), The rail for a slide (87) provided in a position which pinches | interposes the said coating agent (95), The air conditioning apparatus provided with. The air conditioner according to claim 6 , wherein the cooling member (37) cools the joint surface (37a) with the refrigerant of the refrigerant circuit (18). The air conditioner according to claim 6 or 7 , further comprising a cover (85) provided so as to cover a surface of the cooling member (37) opposite to the joint surface (37a). The air conditioner according to claim 8 , wherein a thermal conductivity of the cover (85) is lower than a thermal conductivity of a member constituting the joint surface (60c) of the electrical component module (35). Further comprising a device (23) disposed below the cooling member (37) and generating heat during operation;
It said cover (85) is its bottom end, said cooling member (37) extending portion (85d) 8 or claim has a extending in the electrical equipment module (35) side so as to cover the lower end portion of the 9. The air conditioning apparatus according to 9 . The air conditioner according to claim 10 , wherein the extending portion (85d) extends obliquely downward toward the electrical component module (35). A refrigerant pipe (18a) for cooling the cooling member (37) through which the refrigerant of the refrigerant circuit (18) flows;
The cover (85) has a notch portion into which the refrigerant pipe (18a) is fitted at one end thereof.
A part of the refrigerant pipe (18a) is covered with the cover (85) together with the cooling member (37), and the other part is extended outside the cover (85) through the notch. The air conditioning apparatus according to claim 11 .

Images