CN219876164U - heater - Google Patents

Abstract

The utility model provides a heater, which comprises a shell, a heating pipe and an elastic piece; the shell comprises a first wall, wherein the first wall is provided with a hole part, the hole part comprises a side wall, the hole part is provided with a through hole, and the side wall is positioned on the periphery side of the through hole; the heating pipe is positioned in the inner cavity of the shell, and part of the heating pipe is positioned in the through hole; the elastic piece is located between the heating pipe and the side wall, the inner ring of the elastic piece is elastically propped against the outer wall of the heating pipe, and the outer ring of the elastic piece is elastically propped against the side wall. The heater adopts a radial sealing structure, so that the compactness of the whole structure of the heater is improved, and the tightness is ensured.

Description

Heater

Technical Field

The utility model relates to the technical field of heat exchange, in particular to a heater.

Background

In new energy automobile technical field, the heater is mainly used for heating or heat preservation to working medium, realizes functions such as defrosting, low temperature start and heating. In the related art, the sealing structure of the heater is unreasonable, so that the overall structure of the heater is not compact enough, and the overall size of the heater is larger.

Disclosure of Invention

The utility model provides a heater, which adopts a radial sealing structure, improves the compactness of the whole structure of the heater and ensures the tightness.

The present utility model provides a heater comprising:

a housing including a first wall provided with a hole portion including a side wall having a through hole, the side wall being located on a peripheral side of the through hole;

the heating pipe is positioned in the inner cavity of the shell, and a part of the heating pipe is positioned in the through hole;

the elastic piece is positioned between the heating pipe and the side wall, the inner ring of the elastic piece is elastically propped against the outer wall of the heating pipe, and the outer ring of the elastic piece is elastically propped against the side wall.

The technical scheme is as follows: the elastic piece is positioned between the heating pipe and the side wall, the inner ring of the elastic piece is elastically propped against the outer wall of the heating pipe, and the outer ring of the elastic piece is elastically propped against the side wall, namely, when the heating pipe and the side wall are assembled, the elastic piece can be extruded by the heating pipe and the side wall to elastically deform, so that radial sealing is formed between the heating pipe and the side wall, the compactness of the overall structure of the heater is improved, and the sealing effect is reliable.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.

Drawings

FIG. 1 is a schematic diagram of a heater according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a housing according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of an explosion structure of a heater according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a heater according to an embodiment of the present utility model;

FIG. 5 is an enlarged view of a portion of FIG. 4;

fig. 6 is a schematic view of the structure of the hole in fig. 5.

Reference numerals:

1-a housing;

11-a first wall;

111-sidewalls;

1112-a guide section;

112-an annular groove portion;

113-a first side;

114-a second side;

115-hole portion;

12-linker;

13-a first limit part;

14-an assembly cavity;

15-a distribution cavity;

151-a first cavity;

152-a second chamber;

2-heating pipes;

21-end face;

3-a cover part;

4-elastic members;

5-spoilers;

51-a first end;

6-collector;

61-a second limiting part;

62-mounting holes;

6 a-a first part;

6 b-a second component.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly specified or limited otherwise; the term "plurality" means two or more, unless specified or indicated otherwise; the terms "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, it should be understood that the terms "upper", "lower", and the like used in the embodiments of the present utility model are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present utility model. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.

As shown in fig. 1 to 4, an embodiment of the present utility model provides a heater including a housing 1, a heating pipe 2, and an elastic member 4. The housing 1 includes a first wall 11, the first wall 11 being provided with a hole portion 115, the hole portion 115 including a through hole and a side wall 111 surrounding the through hole; the heating pipe 2 is arranged in the shell 1, and part of the heating pipe 2 is positioned in the through hole; the elastic piece 4 is sleeved between the heating pipe 2 and the side wall 111, the inner ring of the elastic piece 4 elastically props against the outer wall of the heating pipe 2, and the outer ring of the elastic piece 4 elastically props against the side wall 111, namely, the elastic piece 4 is elastically deformed by extruding the heating pipe 2 and the side wall 111, so that radial sealing is formed between the heating pipe 2 and the side wall 111, the compactness of the overall structure of the heater is improved, and the sealing effect is reliable.

The shell 1 is provided with an inner cavity, the heating pipes 2 are arranged in the inner cavity of the shell 1, the number of the heating pipes 2 is a plurality of (including two or more), and the plurality of heating pipes 2 are arranged in parallel. When the number of heating pipes 2 is two, the first wall 11 is one of the wall surfaces surrounding the inner cavity of the housing 1; when the number of heating pipes 2 is more than two, the first wall 11 is a wall surface located in the inner cavity of the housing 1. In this embodiment, a case in which the number of heating pipes 2 is large is taken as an example for the detailed description.

Specifically, the inner cavity of the shell 1 is provided with an assembling cavity 14 and a distributing cavity 15 which are arranged at intervals, the first wall 11 is positioned between the assembling cavity 14 and the distributing cavity 15, the heating pipe 2 is partially positioned in the assembling cavity 14, and the inner cavity of the heating pipe 2 is communicated with the distributing cavity 15. That is, the assembly chamber 14 is used for installing the heating pipe 2, and no working medium exists in the assembly chamber 14; the distributing cavity 15 is used for containing working medium, and the working medium in the distributing cavity 15 enters the inner cavity of the heating pipe 2 for heating, or the working medium in the inner cavity of the heating pipe 2 enters the distributing cavity 15 after being heated. Optionally, the working medium is a cooling liquid or a refrigerant.

Specifically, the heating pipe 2 is installed in the assembly cavity 14, a part of the heating pipe 2 extends into the through hole from the assembly cavity 14, and under the action of the elastic piece 4, a sealing fit is formed between the heating pipe 2 and the side wall 111 surrounding the through hole, so that the flow distribution cavity 15 and the assembly cavity 14 are separated from each other, and the working medium in the flow distribution cavity 15 can only enter the inner cavity of the heating pipe 2, but cannot enter the assembly cavity 14. The housing 1 is connected with a cover part 3, and the cover part 3 is in sealing fit with a wall surface surrounding the distribution cavity 15, so that the distribution cavity 15 forms a sealing cavity capable of containing working medium.

Further, a connector 12 may be provided on the outside of the housing 1 to facilitate connection of the heater to external piping; the inner cavity of the joint 12 is communicated with the distributing cavity 15, and the joint 12 is a medium inlet or a medium outlet, that is, an external working medium enters the distributing cavity 15 through the joint 12, or the working medium in the distributing cavity 15 flows out of the inner cavity of the shell 1 through the joint 12.

Further, the flow distribution cavity 15 includes a first cavity 151 and a second cavity 152 isolated from each other, the first cavity 151 and the second cavity 152 respectively correspond to one joint 12, the joint 12 corresponding to the first cavity 151 is a medium inlet, and the joint 12 corresponding to the second cavity 152 is a medium outlet. Wherein the inner cavity of a part of the heating tube 2 is in communication with the first cavity 151, this part of the heating tube 2 being described as a first tube; the inner cavity of the other part of the heating tube 2 is in communication with the second cavity 152, this part of the heating tube 2 being described as a second tube; the first tube and the second tube communicate with each other at an end remote from the first wall 11. The external working medium enters the first cavity 151 through one of the connectors 12, flows into the inner cavity of the first pipe for heating, flows into the inner cavity of the second pipe for reheating, flows into the second cavity 152, and flows out of the second cavity 152 through the other connector 12, so that the heating time is prolonged, and the heating effect is improved.

With continued reference to fig. 1 to 4, the heater provided by the embodiment of the present utility model includes a current collector 6, where the current collector 6 is disposed at an end of the heating tube 2 away from the first wall 11, and an inner cavity of the heating tube 2 is in communication with an inner cavity of the current collector 6, specifically, the inner cavity of each heating tube 2 is in communication with the inner cavity of the current collector 6, so that each heating tube 2 is in communication with each other at the end away from the first wall 11.

Wherein the current collector 6 may comprise a first part 6a and a second part 6b which are matched with each other, for example, the first part 6a may be provided as a shell-like structure with an opening at one side, the second part 6b may be provided as a plate-like structure, the second part 6b closes the opening of the first part 6a, and the first part 6a is in sealing connection with the second part 6b, so that an inner cavity of the current collector is formed between the first part 6a and the second part 6b.

Further, the heating tube 2 is connected with the current collector 6 in a sealing way, for example, the heating tube 2 and the current collector 6 can be sealed by welding or the like, so as to avoid leakage of the working medium between the heating tube 2 and the current collector 6. Specifically, the side of the current collector 6 facing the heating tube 2 may be provided with a mounting hole 62, the mounting hole 62 communicates with the inner cavity of the current collector 6, and a portion of the heating tube 2 extends into the mounting hole 62 and is in sealing fit with the wall surface on the peripheral side of the mounting hole 62, so that the inner cavity of the heating tube 2 and the inner cavity of the current collector 6 communicate with each other.

Further, the current collecting piece 6 is located in the assembly cavity 14, the current collecting piece 6 is fixedly connected to the inner wall of the assembly cavity 14, that is, the first part 6a or the second part 6b is fixedly connected with the shell, so that the relative fixation between the heating pipe 2 and the shell 1 is realized, the relative movement of the elastic piece 4 and the heating pipe 2 is avoided, the elastic contact area is kept unchanged, and therefore a reliable radial seal is formed.

Specifically, a first limiting part 13 may be disposed in the assembly cavity 14, where the first limiting part 13 is convexly disposed on an inner wall of the assembly cavity 14, and one end of the first limiting part 13 away from the inner wall of the assembly cavity 14 abuts against the outer surface of the current collector 6, so as to form circumferential positioning on the current collector 6. In one embodiment, the number of the first limiting parts 13 is one, the first limiting parts 13 may be configured as a continuous protrusion structure extending along the circumferential direction of the current collector 6, and the first limiting parts 13 prop against the outer surface of the current collector 6, so that uniform and continuous limiting is formed on the current collector 6, and positioning accuracy of the current collector 6 is improved. In another embodiment, the number of the first limiting portions 13 is multiple (including two or more), each first limiting portion 13 surrounds the current collecting member 6, and each first limiting portion 13 abuts against the outer surface of the current collecting member 6, so as to reduce the space occupied by the first limiting portion 13 and improve the effective utilization rate of the inner cavity of the housing 1.

Further, the current collector 6 may be provided with a second limiting portion 61, where the second limiting portion 61 extends outwards from the edge of the current collector 6, and the second limiting portion 61 may be located on one side of the first limiting portion 13 close to the first wall 11, or may be located on one side of the first limiting portion 13 far from the first wall 11, where the second limiting portion 61 abuts against the first limiting portion 13, so as to axially locate the current collector 6; the second limiting portion 61 and the first limiting portion 13 may be connected by means of a threaded fastener or the like, so as to fix the current collector 6 in the inner cavity of the housing 1, and enable the current collector 6 to achieve a relative seal. Optionally, the second limiting portion 61 is located on the first part 6a and/or the second part 6b.

As shown in fig. 4 and 5, the first wall 11 includes a first surface 113 and a second surface 114, the first surface 113 and the second surface 114 being located on opposite sides of the first wall 11 in the length direction of the heating pipe 2, the first surface 113 facing the fitting chamber 14, and the second surface 114 facing the distribution chamber 15.

Further, the housing 1 includes a guide section 1112, the guide section 1112 connecting the sidewall 111 and the first face 113, the guide section 1112 being disposed obliquely with respect to the first face 113; the guide section 1112 has an annular structure, and the aperture of the guide section 1112 gradually decreases along the direction that the first surface 113 points to the second surface 114, so that the hole portion 115 forms a relatively large opening on the second surface 114, thereby enabling the heating tube 2 to be more easily installed in alignment with the hole portion 115; and the guide section 1112 plays an automatic centering role on the heating pipe 2, and under the action of the guide section 1112, the heating pipe 2 can automatically move towards the direction close to the axis of the hole 115, so that the gap between the heating pipe 2 and the side wall 111 of the hole 115 is kept uniform, and the elastic piece 4 is uniformly compressed, so that the problem of local leakage is avoided.

Further, the heating tube 2 includes an end surface 21, and the end surface 21 is located at the outermost side in the length direction of the heating tube 2; the end surface 21 is positioned between the first surface 113 and the second surface 114 along the length direction of the heating pipe 2, so that a certain matching length can be formed between the heating pipe 2 and the through hole, and a mounting and extrusion space of the elastic piece 4 is formed; the heating pipe 2 can be prevented from extending into the flow distribution cavity 15, so that the space of the flow distribution cavity 15 is occupied, and the actual effective volume of the flow distribution cavity 15 is reduced; it is also possible to avoid dead angles, in which the working medium is not easily flowing, from being formed in the area surrounding the heating pipe 2 in the flow distribution chamber 15, affecting the effective utilization of the working medium.

Further, the elastic member 4 is located between the first surface 113 and the second surface 114, the end surface 21 is closer to the second surface 114 than the elastic member 4, and the elastic member 4 is closer to the first surface 113 than the end surface 21, so that the elastic member 4 is completely located within the matching length of the heating tube 2 and the side wall 111, and the elastic member 4 is fully compressed.

With continued reference to fig. 4 and fig. 5, the heater provided by the embodiment of the utility model includes a spoiler 5, where the spoiler 5 is at least partially contained in the inner cavity of the heating tube 2 and is connected to the heating tube 2, and the spoiler 5 is used to spoiler the working medium, so that the working medium in the inner cavity of the heating tube 2 is heated more uniformly. Specifically, the middle part of the spoiler 5 is accommodated in the inner cavity of the heating pipe 2, two end parts of the spoiler 5 are respectively connected to two end parts of the heating pipe 2, and at least one end part of the spoiler 5 is connected to the spoiler 5 in a detachable manner such as a snap fit manner, so that the spoiler 5 is convenient to be matched with the heating pipe 2.

Further, the spoiler 5 includes a first end 51, where the first end 51 is engaged with the end surface 21, that is, the end of the spoiler 5 facing the flow distribution cavity 15 forms the first end 51, and the first end 51 may be integrally formed with the spoiler 5, or may be detachably connected to the spoiler 5 by using a snap fit or the like. The radial dimension of the first end 51 is larger than the inner diameter of the heating pipe 2, so that the first end 51 can be stopped on the end face 21, and the first end 51 is axially limited through the end face 21, so that the relative movement of the spoiler 5 and the heating pipe 2 is prevented, and larger noise or mechanical damage such as abrasion, collision and the like is generated.

Further, at least a portion of the first end 51 is accommodated in the through hole, specifically, the end surface 21 is located between the first surface 113 and the second surface 114, and at least a portion of the first end 51 is located between the end surface 21 and the second surface 114, and the relative position of the spoiler 5 and the end surface 21 along the radial direction is defined by the through hole, so that the spoiler 5 is prevented from sliding along the edge of the end surface 21, and the spoiler 5 is prevented from being disconnected from the heating tube 2.

Further, the outer wall of the first end portion 51 is mutually attached to the side wall 111, so that the side wall 111 forms reliable radial limit to the first end portion 51, the first end portion 51 is prevented from swinging or moving radially in the through hole, and then the heating pipe 2 is caused to swing or move radially in the through hole, so that the pressing action of the heating pipe 2 on the elastic piece 4 is affected, and the reliability of sealing fit is affected.

As shown in fig. 5 and 6, the side wall 111 is provided with an annular groove 112, and the annular groove 112 is recessed in the side wall 111, so that the original structure of the heating pipe 2 is not changed, and the heating pipe 2 is ensured to have reliable structural strength and heating effect; a gap is left between the annular groove 112 and the edge of the side wall 111, so that the two sides of the annular groove 112 can form stop limit; the elastic element 4 is at least partially arranged in the groove cavity of the annular groove 112, and the elastic element 4 is accommodated and positioned through the annular groove 112, so that the elastic element 4 is prevented from moving along the axial direction of the heat exchange tube, and the reliability of sealing connection is improved. It is understood that the annular groove 112 may be provided on the outer wall of the heating tube 2, and the annular groove 112 may be recessed in the outer wall of the heating tube 2.

Further, the outer wall of the heating pipe 2 is mutually attached to the side wall 111, so that the side wall 111 forms radial limit on the heating pipe 2, the heating pipe 2 is prevented from swinging or moving radially along the self in the through hole, the compression effect of the heating pipe 2 on the elastic piece 4 is affected, and the reliability of sealing fit is affected.

In some other embodiments, a gap is left between the outer wall of the heating tube 2 and the side wall 111, so that the elastic member 4 can be fully extruded and deformed, and the sealing failure caused by insufficient extrusion of the elastic member 4 is avoided.

Further, the elastic piece 4 is an O-shaped ring, the structure is simple, the installation and the operation are simple and convenient, and the reliable sealing effect can be kept in a longer working period.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A heater, the heater comprising:

a housing (1), the housing (1) comprising a first wall (11), the first wall (11) being provided with a hole portion (115), the hole portion (115) comprising a side wall (111), the hole portion (115) having a through hole, the side wall (111) being located on a peripheral side of the through hole;

the heating pipe (2) is positioned in the inner cavity of the shell (1), and part of the heating pipe (2) is positioned in the through hole;

the elastic piece (4) is positioned between the heating pipe (2) and the side wall (111), the inner ring of the elastic piece (4) elastically props against the outer wall of the heating pipe (2), and the outer ring of the elastic piece (4) elastically props against the side wall (111).

2. A heater according to claim 1, wherein the side wall (111) is provided with an annular groove portion (112), and the elastic member (4) is at least partially provided in a groove cavity of the annular groove portion (112).

3. The heater according to claim 2, characterized in that the outer wall of the heating tube (2) and the side wall (111) are mutually attached.

4. A heater according to claim 2, wherein the elastic member (4) is an O-ring.

5. The heater according to claim 1, characterized in that the first wall (11) comprises a first face (113) and a second face (114), the first face (113) and the second face (114) being located on opposite sides of the first wall (11) along the length of the heating tube (2);

the housing (1) comprises a guide section (1112), the guide section (1112) connecting the side wall (111) and the first face (113), the guide section (1112) being arranged obliquely with respect to the first face (113);

the guide section (1112) is of an annular structure, and the aperture of the guide section (1112) gradually decreases along the direction that the first face (113) points to the second face (114).

6. The heater according to claim 5, characterized in that the heating tube (2) comprises an end face (21), which end face (21) is located at the outermost longitudinal side of the heating tube (2);

along the length direction of the heating pipe (2), the end face (21) and the elastic piece (4) are both positioned between the first face (113) and the second face (114), the end face (21) is closer to the second face (114) than the elastic piece (4), and the elastic piece (4) is closer to the first face (113) than the end face (21).

7. The heater according to claim 6, characterized in that it comprises a spoiler (5), which spoiler (5) is located partly in the inner cavity of the heating tube (2);

the spoiler (5) comprises a first end portion (51), the first end portion (51) is matched with the end surface (21), and at least a part of the first end portion (51) is accommodated in the through hole.

8. The heater according to claim 1, characterized in that the heater comprises a current collector (6), the current collector (6) being arranged at an end of the heating tube (2) remote from the first wall (11), the inner cavity of the heating tube (2) being in communication with the inner cavity of the current collector (6), the heating tube (2) being in sealing connection with the current collector (6).

9. The heater according to any one of claims 1-8, wherein the housing (1) has a fitting chamber (14) and a flow distribution chamber (15) arranged at intervals, the first wall (11) being located between the fitting chamber (14) and the flow distribution chamber (15), the heating tube (2) being located partly in the fitting chamber (14), the inner chamber of the heating tube (2) being in communication with the flow distribution chamber (15).

10. The heater according to claim 9, wherein the number of heating pipes (2) is plural, and the distribution chamber (15) includes a first chamber (151) and a second chamber (152) isolated from each other, wherein a part of the inner chambers of the heating pipes (2) communicate with the first chamber (151) and another part of the inner chambers of the heating pipes (2) communicate with the second chamber (152).