Heat pump water heater and machine head assembly thereof

Abstract

The utility model discloses a heat-pump water heater and a machine head assembly thereof. The machine head assembly comprises a shell, a first air inlet and a second air inlet, the bent heat exchanger is vertically arranged in the shell and corresponds to the first air opening; and the two supporting pieces are vertically arranged in the shell, the two ends of the heat exchanger correspond to the two supporting pieces in a one-to-one mode and are sealed through sealing pieces, the two supporting pieces are further in sealing fit with the peripheral wall of the shell, a first air area is formed among the peripheral wall of the shell, the heat exchanger and the two supporting pieces, and the first air area is communicated with the exterior of the shell through a first air opening. According to the scheme, the sealing element can eliminate the influence of the opening size fluctuation of the heat exchanger on the sealing between the end part of the heat exchanger and the supporting element, so that the sealing between the end part of the heat exchanger and the supporting element can be stably realized; furthermore, according to the scheme, the position of the supporting piece is not influenced by the size fluctuation of the opening of the heat exchanger any more, the relative position of the supporting piece and the peripheral wall of the shell is always unique, and therefore sealing can be stably achieved between the supporting piece and the peripheral wall of the shell.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat pump equipment, in particular to a heat pump water heater and a head assembly thereof. BACKGROUND

[0002] The heat pump water heater comprises a water receiving tray, an annular side wall, a cover body, a U-shaped or C-shaped heat exchanger and two support members, the two support members are sealingly fixed at two ends of the heat exchanger and form a heat exchanger assembly with the heat exchanger, the heat exchanger assembly is fixed on the water receiving tray, and the two support members are fixedly connected with the water receiving tray by screws. The annular side wall is sleeved on the water receiving tray, and the cover body is coveringly arranged on the upper portion of the annular side wall. The annular side wall is provided with a first air inlet, the first air inlet is arranged opposite to the convex side of the heat exchanger, and the two ends of the heat exchanger are sealingly matched with the annular side wall.

[0003] Since the opening size of the U-shaped or C-shaped heat exchanger fluctuates greatly, the assembly position of the support member and the water receiving tray is prone to misalignment, which causes the support member to be difficult or impossible to be assembled on the water receiving tray. In addition, since the opening size of the U-shaped or C-shaped heat exchanger fluctuates greatly, it is also difficult to stably realize the sealing between the two ends of the heat exchanger and the annular side wall. Thus, part of the wind beam entering the annular side wall from the first air inlet reaches the concave side of the heat exchanger from the gap between the two ends of the heat exchanger and the annular side wall, and the other part reaches the concave side of the heat exchanger from the fin gap of the heat exchanger, which reduces the heat exchange effect of the heat exchanger. CONTENT OF THE UTILITY MODEL

[0004] The head assembly of the heat pump water heater comprises a shell, a bent heat exchanger and two support members. The shell is provided with a first air inlet. The heat exchanger is vertically arranged in the shell and corresponds to the first air inlet. The two support members are vertically arranged in the shell. The two ends of the heat exchanger correspond to the two support members and are sealed by a sealing member. The two support members are sealingly matched with the peripheral wall of the shell. The peripheral wall of the shell, the heat exchanger and the two support members form a first air area. The first air area is connected with the outside of the shell through the first air inlet.

[0005] In some example embodiments, the shell comprises a water receiving tray, an arc-shaped first side wall, an arc-shaped second side wall and a cover body. The heat exchanger and the two support members are vertically arranged on the water receiving tray. The two ends of the first side wall are sealingly matched with the two support members. The first air inlet is located on the first side wall and is arranged opposite to the convex side of the heat exchanger. The first side wall, the heat exchanger and the two support members form a first air area. The two ends of the second side wall are connected with the two ends of the first side wall. The cover body is coveringly arranged on the upper portion of the region surrounded by the first side wall and the second side wall.

[0006] In some example embodiments, one of the lower portions of the two ends of the heat exchanger is provided with a connecting hole, and the other is provided with an adjusting hole; the water pan is provided with a first screw hole and a second screw hole; a threaded segment of a first screw is screwed into the first screw hole through the connecting hole; and a threaded segment of a second screw is screwed into the second screw hole through the adjusting hole.

[0007] In some example embodiments, the two ends of the first side wall are each provided with a first folded edge bent towards the recessed side of the first side wall; and the two first folded edges are each sealed and fixed to one of the two support members.

[0008] In some example embodiments, the two ends of the second side wall are each provided with a second folded edge bent towards the recessed side of the second side wall; the second folded edge is located on a side of the first folded edge away from the support member and is connected to the first folded edge in one-to-one correspondence.

[0009] In some example embodiments, the two ends of the heat exchanger are each provided with a third folded edge; the two third folded edges are each in one-to-one correspondence with one of the two support members; and the sealing member is arranged between the third folded edge and the support member.

[0010] In some example embodiments, the sealing member is a sponge strip.

[0011] In some example embodiments, the third folded edge and the edge plate of the heat exchanger are in an integral structure.

[0012] In some example embodiments, the third folded edge and the edge plate of the heat exchanger are in a split structure.

[0013] In some example embodiments, the head assembly further comprises: an air guide ring, the top wall of the shell is provided with a second air outlet, the air guide ring is located in the shell and arranged at the second air outlet, and the upper portion of the first air zone is in sealed cooperation with the outer peripheral surface of the air guide ring; and a fan assembly arranged in the air guide ring.

[0014] The application also provides a heat pump water heater comprising the head assembly of the heat pump water heater according to any one of the above example embodiments.

[0015] The technical solution provided in this application first involves erecting and fixing two support members to the bottom wall of the shell, and then installing the heat exchanger on the bottom wall of the shell, so that the two ends of the heat exchanger correspond one-to-one with the two support members and are sealed by a sealing member. This sealing member can eliminate the influence of the opening size fluctuation of the heat exchanger on the seal between the end of the heat exchanger and the support member, so that the end of the heat exchanger and the support member can be stably sealed. Then, the peripheral wall of the shell is installed on the bottom wall of the shell, so that both support members are sealed and fitted with the peripheral wall of the shell. In this solution, the position of the support members is no longer affected by the opening size fluctuation of the heat exchanger, and the relative position of the support member and the peripheral wall of the shell is always unique, so that the support member and the peripheral wall of the shell can be stably sealed.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solution of this utility model and do not constitute a limitation on the technical solution of this utility model.

[0018] Figure 1 This is an exploded structural diagram of the nose assembly provided in some embodiments of this application;

[0019] Figure 2 for Figure 1 A top view of the cross-sectional structure of the nose assembly shown;

[0020] Figure 3 for Figure 2 A magnified structural diagram of part A in the diagram;

[0021] Figure 4 for Figure 1 The diagram shows a top view of the nose assembly in cross-section; the second sidewall is not shown.

[0022] Figure 5 for Figure 4 A magnified structural diagram of part B in the diagram.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 110 Water receiving tray, 120 First side wall, 121 First air outlet, 122 First folded edge, 130 Second side wall, 131 Second folded edge, 150 First air zone, 200 Heat exchanger, 210 Third folded edge, 300 Support component, 400 Sealing component. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will combine the drawings to make a detailed description of the embodiments of the utility model. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other at will without conflict.

[0026] The head assembly of the heat pump water heater provided by the embodiments of the present application comprises a shell, a bent heat exchanger 200 and two support members 300. Figures 1 to 5 As shown in the figure, the shell is provided with a first air inlet 121; the bent heat exchanger 200 is vertically arranged in the shell and is correspondingly arranged with the first air inlet 121; and the two support members 300 are vertically arranged in the shell, the two ends of the heat exchanger 200 correspond to the two support members 300 one by one and are sealed by the sealing member 400 (i.e. the end of the corresponding heat exchanger 200 and the support member 300 are sealed by the sealing member 400), and the two support members 300 are also in sealing cooperation with the peripheral wall of the shell, the peripheral wall of the shell, the heat exchanger 200 and the two support members 300 form a first air area 150, and the first air area 150 is connected with the outside of the shell through the first air inlet 121.

[0027] First, the two support members 300 are vertically arranged and fixed on the bottom wall of the shell, and then the heat exchanger 200 is installed on the bottom wall of the shell, so that the two ends of the heat exchanger 200 correspond to the two support members 300 one by one and are sealed by the sealing member 400, and the sealing member 400 can eliminate the influence of the opening size fluctuation of the heat exchanger 200 on the sealing between the end of the heat exchanger 200 and the support member 300, so that the sealing between the end of the heat exchanger 200 and the support member 300 can be stably realized; then, the peripheral wall of the shell is installed on the bottom wall of the shell, so that the two support members 300 are in sealing cooperation with the peripheral wall of the shell, and the position of the support member 300 is no longer affected by the opening size fluctuation of the heat exchanger 200, and the relative position between the support member 300 and the peripheral wall of the shell is always unique, so that the sealing between the support member 300 and the peripheral wall of the shell can be stably realized.

[0028] In this head assembly, the air beam enters the inside of the shell through the first air inlet 121, and then reaches the side of the heat exchanger 200 opposite to the first air inlet 121 from the fin gap of the heat exchanger 200 after passing through the first air area 150, so as to realize the heat exchange between the air beam and the heat exchanger 200, and the heat exchange effect of the heat exchanger 200 is good.

[0029] In some examples, as shown in Figures 1 to 5As shown, the shell comprises: a water pan 110, the heat exchanger 200 and the two support members 300 are vertically arranged on the water pan 110, and the water pan 110 comprises a bottom wall of the shell; an arc-shaped first side wall 120, two ends of the first side wall 120 are in sealing cooperation with the two support members 300 one by one, a first air inlet 121 is located on the first side wall 120 and is arranged opposite to the convex side of the heat exchanger 200, a first air area 150 is formed between the first side wall 120, the heat exchanger 200 and the two support members 300, and the lower part of the first air area 150 is in sealing cooperation with the water pan 110; an arc-shaped second side wall 130, the concave side of the first side wall 120 is opposite to the concave side of the second side wall 130, two ends of the second side wall 130 are connected with the two ends of the first side wall 120 one by one, and the peripheral wall of the shell comprises the first side wall 120 and the second side wall 130; and a cover (not shown in the figure), the cover is covered on the upper part of the area surrounded by the first side wall 120 and the second side wall 130, i.e. the cover is covered on the upper part of the peripheral wall of the shell.

[0030] In some embodiments, one of the lower parts of the two ends of the heat exchanger 200 is provided with a connecting hole, and the other is provided with an adjusting hole, the water pan 110 is provided with a first screw hole and a second screw hole, a threaded segment of a first screw is screwed into the first screw hole through the connecting hole, and a threaded segment of a second screw is screwed into the second screw hole through the adjusting hole. The connecting hole is a round hole, and the adjusting hole is a long strip hole. This scheme can compensate the influence of the opening size fluctuation of the heat exchanger 200, and ensure that the two ends of the heat exchanger 200 are easily fixed on the water pan 110.

[0031] In some embodiments, the two ends of the heat exchanger 200 are located between the two support members 300, as shown in Figure 1 , Figure 3 and Figure 5 As shown, the two ends of the first side wall 120 are each provided with a first folded edge 122 bent towards the concave side of the first side wall 120, and the two first folded edges 122 are in sealing and fixed connection with the two support members 300 one by one. It can be that the first folded edge 122 is provided with a first buckle position, the support member 300 is provided with a first buckle, the first buckle is in clamping connection with the first buckle position, and the corresponding first folded edge 122 and the support member 300 are in sealing and fixed connection; or it can be that the first folded edge 122 is provided with a first screw hole, the support member 300 is provided with a second screw hole, the first screw hole and the second screw hole are connected through a third screw, and the corresponding first folded edge 122 and the support member 300 are in sealing and fixed connection, and the like. The above can all achieve the purpose of the present application, and the design idea is not deviated from the present application, and will not be described here again, and all should be within the protection scope of the present application.

[0032] In some embodiments, as shown in Figure 1 and Figure 3As shown, the second side wall 130 is provided with a second folded edge 131 which is folded towards the concave side of the second side wall 130 at both ends of the second side wall 130, and the second folded edge 131 is located on the side of the first folded edge 122 away from the support 300 and is connected with the first folded edge 122 in one-to-one correspondence. It can be that the first folded edge 122 is provided with a second buckle, the second folded edge 131 is provided with a second buckle position, the second buckle is connected with the second buckle position in a clamping manner, and the corresponding second folded edge 131 and the first folded edge 122 are connected; or it can be that the first folded edge 122 is provided with a third threaded hole, the second folded edge 131 is provided with a fourth threaded hole, the third threaded hole and the fourth threaded hole are connected through a fourth screw, and the corresponding second folded edge 131 and the first folded edge 122 are connected, and the like. The above can achieve the purpose of the present application, and the purpose does not deviate from the design idea of the present application, and will not be repeated here, and should be within the protection scope of the present application.

[0033] In some examples, as shown in Figure 1 , Figure 3 and Figure 5 , the heat exchanger 200 is provided with a third folded edge 210 at both ends, the two third folded edges 210 correspond to the two supports 300, and the sealing element 400 is arranged between the corresponding third folded edge 210 and the support 300. That is, the third folded edge 210 and the support 300 include two groups, one group of the third folded edge 210 and the support 300 is provided with the sealing element 400, and the other group of the third folded edge 210 and the support 300 is also provided with the sealing element 400. The sealing element has a certain elasticity and can be elastically deformed. When the sealing element is extruded, it compensates for the influence of the opening size fluctuation of the heat exchanger 200 through elastic deformation, and ensures that the third folded edge 210 and the support 300 are stably sealed.

[0034] In some embodiments, the sealing element 400 is provided as a sponge strip, which has low purchase cost and good sealing performance.

[0035] It can be that, as shown in Figure 3 and Figure 5 , the third folded edge 210 and the edge plate of the heat exchanger 200 are an integral structure; or it can be that the third folded edge 210 and the edge plate of the heat exchanger 200 are a split structure, and the like. The above can achieve the purpose of the present application, and the purpose does not deviate from the design idea of the present application, and will not be repeated here, and should be within the protection scope of the present application.

[0036] In some examples, the head assembly further comprises: a wind guide ring (not shown in the figure), the top wall of the shell is provided with a second air port, the wind guide ring is located in the shell, the upper end of the wind guide ring is located at the second air port, the lower end of the wind guide ring is located on the recessed side of the heat exchanger 200 (i.e. the lower end of the wind guide ring is located on the side of the heat exchanger 200 facing away from the first air port 121), the upper part of the first air zone 150 is in sealing cooperation with the outer peripheral surface of the wind guide ring; and a fan assembly (not shown in the figure) located in the wind guide ring. The fan assembly is configured to form a wind beam flowing from the first air port 121 to the second air port through the first air zone 150, the heat exchanger 200 and the wind guide ring, and finally the wind beam blows to the outside of the shell from the second air port.

[0037] The heat pump water heater (not shown in the figure) provided by the embodiments of the present application comprises the head assembly of the heat pump water heater according to any one of the above embodiments.

[0038] The heat pump water heater has all the advantages of the head assembly provided by any one of the above embodiments, which will not be repeated here.

[0039] In summary, the technical scheme provided by the embodiments of the present application first fixes two support members vertically on the bottom wall of the shell, and then installs the heat exchanger on the bottom wall of the shell, so that the two ends of the heat exchanger correspond to the two support members one by one and are sealed by the sealing member. This scheme can eliminate the influence of the opening size fluctuation of the heat exchanger on the sealing between the end of the heat exchanger and the support member, so that the sealing between the end of the heat exchanger and the support member can be stably realized. Then, the peripheral wall of the shell is installed on the bottom wall of the shell, so that the two support members are in sealing cooperation with the peripheral wall of the shell. In this scheme, the position of the support member is no longer affected by the opening size fluctuation of the heat exchanger, and the relative position of the support member and the peripheral wall of the shell is always unique, so that the sealing between the support member and the peripheral wall of the shell can be stably realized.

[0040] In the description in the present application, it should be explained that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "edge", "opposite", "four corners", "periphery", "mouth" structure, etc. indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0041] In the description of the embodiments of the utility model, unless another definite provision and limitation, the term "connect", "directly connect", "indirectly connect", "fixedly connect", "install", "assemble" should do broad sense understanding, for example, can be fixedly connected, also can be detachable connection, or integrally connect, the term "install", "connect", "fixedly connect" can be directly connected, also can indirectly connect through intermediate medium, can be two elements inside the intercommunication. For the ordinary skill in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0042] Although the embodiments disclosed by the utility model are as above, the content described is only the embodiment adopted for facilitating the understanding of the utility model, and is not used to limit the utility model. Any person skilled in the art of the utility model can make any modification and change in the implementation form and details without departing from the spirit and scope of the utility model disclosed, but the patent protection scope of the utility model still needs to be defined by the appended claims.

Claims

1. A head assembly for a heat pump water heater, the head assembly comprising: The heat pump water heater comprises: a shell, a peripheral wall of which is provided with a first air inlet; a bent heat exchanger, which is vertically arranged in the shell and corresponds to the first air inlet; and two support members, which are vertically arranged in the shell, two ends of the heat exchanger correspond to the two support members respectively and are sealed by sealing members, the two support members are also in sealing engagement with the peripheral wall of the shell, and a first air area is formed between the peripheral wall of the shell, the heat exchanger and the two support members, and the first air area is in communication with the outside of the shell through the first air inlet. The shell comprises:

2. The nose assembly of claim 1, wherein, a water collecting tray, the heat exchanger and the two support members are vertically arranged on the water collecting tray; an arc-shaped first side wall, two ends of the first side wall are in sealing engagement with the two support members respectively, the first air inlet is located on the first side wall and is arranged opposite to the convex side of the heat exchanger, and a first air area is formed between the first side wall, the heat exchanger and the two support members; an arc-shaped second side wall, two ends of the second side wall are connected to two ends of the first side wall respectively; and a cover, which is arranged on the upper part of the area surrounded by the first side wall and the second side wall. One of the lower parts of the two ends of the heat exchanger is provided with a connecting hole, and the other is provided with an adjusting hole, the water collecting tray is provided with a first screw hole and a second screw hole, a threaded segment of a first screw is screwed into the first screw hole through the connecting hole, and a threaded segment of a second screw is screwed into the second screw hole through the adjusting hole.

3. The nose assembly of claim 2, wherein, Two ends of the first side wall are each provided with a first folded edge which is bent towards the recessed side of the first side wall, and the two first folded edges are in sealing and fixed connection with the two support members respectively.

4. The nose assembly of claim 2, wherein, Two ends of the second side wall are each provided with a second folded edge which is bent towards the recessed side of the second side wall, the second folded edge is located on the side of the first folded edge which is away from the support members and is connected to the first folded edge respectively.

5. The nose assembly of claim 4, wherein, Two ends of the heat exchanger are each provided with a third folded edge, and the two third folded edges correspond to the two support members respectively, and the sealing members are arranged between the third folded edges and the support members.

6. The handpiece assembly of any one of claims 1 to 5, wherein, The sealing members are sponge strips.

7. The handpiece assembly of claim 6, wherein, 8. The nose assembly of claim 6, wherein: the third folded edge and the edge plate of the heat exchanger are in an integral structure; or the third folded edge and the edge plate of the heat exchanger are in a split structure. The heat pump water heater further comprises:

9. The handpiece assembly of any one of claims 1 to 5, wherein, an air guide ring, a top wall of the shell is provided with a second air inlet, the air guide ring is located in the shell and is arranged at the second air inlet, and an upper part of the first air area is in sealing engagement with the outer circumferential surface of the air guide ring; and a fan assembly, which is arranged in the air guide ring. The heat pump water heater comprises the nose assembly of any one of claims 1 to 9.

10. A heat pump water heater, characterized by, ​

Images