CN220251210U

CN220251210U - Temperature-detecting device fixed knot constructs and PTC water heater assembly

Info

Publication number: CN220251210U
Application number: CN202321950534.1U
Authority: CN
Inventors: 鞠华光; 张岘; 丁志强; 孙雨; 王玮
Original assignee: Xiaogan Huagong Gaoli Electron Co Ltd
Current assignee: Xiaogan Huagong Gaoli Electron Co Ltd
Priority date: 2023-07-24
Filing date: 2023-07-24
Publication date: 2023-12-26
Anticipated expiration: 2033-07-24

Abstract

The utility model provides a temperature detection device fixing structure and a PTC water heater assembly, which comprises a shell and a fixing plate, wherein the fixing plate is arranged on the shell, the shell is provided with a mounting groove, the fixing plate is provided with a mounting protrusion, the fixing plate is provided with a limiting through hole for the temperature detection device to pass through, the limiting through hole penetrates through the mounting protrusion, the aperture of the limiting through hole at the tail end of the mounting protrusion is smaller than that of the temperature detection device, and the tail end of the mounting protrusion is positioned in the mounting groove. The utility model can improve the accuracy of temperature detection and the production efficiency.

Description

Temperature-detecting device fixed knot constructs and PTC water heater assembly

Technical Field

The utility model relates to the technical field of temperature sensor fixing in a PTC water heater assembly of a new energy automobile air conditioner and a battery pack, in particular to a temperature detection device fixing structure and a PTC water heater assembly.

Background

Unlike traditional fuel oil vehicle, new energy automobile has no engine, no waste heat heats the whole vehicle, and the battery pack needs to be heated to maintain the best performance under low temperature. PTC is used as a positive temperature coefficient semiconductor material, can generate heat by itself in an electrified state, has the advantages of high heating efficiency, high power, no open flame and the like, and becomes an important part on a new energy automobile after being manufactured into a heating device.

The fixed plate of the traditional PTC water heater assembly only plays a role in fixing the trend of the wire harness of the water inlet and outlet temperature sensors, the installation depth of the water inlet and outlet temperature sensors is manually controlled when the water inlet and outlet temperature sensors are assembled manually, and the fixed plate, the water inlet and outlet temperature sensors cannot be sub-packaged in advance. That is, the temperature detection device fixing structure of the traditional PTC water heater assembly cannot mechanically fix the installation depth of the water inlet temperature sensor and the water outlet temperature sensor, and cannot be assembled and prefabricated in advance, so that the production takt efficiency is low, the risk of inaccurate temperature monitoring of the water inlet temperature sensor and the water outlet temperature sensor exists, and the performance of the PTC water heater assembly is damaged.

Disclosure of Invention

The utility model aims to provide a temperature detection device fixing structure and a PTC water heater assembly, which are used for solving the problems that the existing temperature detection device fixing structure and the existing PTC water heater assembly are low in production efficiency and low in temperature detection accuracy.

In order to solve the technical problems, the utility model provides a fixing structure of a temperature detection device, which comprises a shell and a fixing plate, wherein the fixing plate is arranged on the shell, the shell is provided with a mounting groove, the fixing plate is provided with a mounting protrusion, the fixing plate is provided with a limiting through hole for the temperature detection device to pass through, the limiting through hole penetrates through the mounting protrusion, the aperture of the limiting through hole at the tail end of the mounting protrusion is smaller than that of the temperature detection device, and the tail end of the mounting protrusion is positioned in the mounting groove.

Optionally, the diameter of the limiting through hole gradually decreases from the fixing plate to the tail end of the mounting protrusion.

Optionally, the aperture of the limiting through hole at the fixing plate is larger than the temperature detection device.

Optionally, the mounting protrusion includes a base portion extending from the fixing plate to a side away from the fixing plate, and a spring piece portion extending from an edge of the base portion to a side away from the fixing plate.

Optionally, the number of the spring plate parts is at least two.

Optionally, the elastic sheet portions are uniformly distributed along the circumferential direction of the mounting protrusion.

Optionally, the fixing plate further has a wire clamping groove, a spring plate extends from one side of the edge of the wire clamping groove to the other side of the wire clamping groove, and a wire clamping gap for clamping wires is formed on the wall surface of the spring plate and the wall surface of the wire clamping groove.

Optionally, the number of the elastic pieces is at least two, and the elastic pieces are alternately arranged at the edges of two sides of the wire clamping groove at intervals.

Optionally, a mounting boss is provided on the housing, and the fixing plate is mounted on the mounting boss.

The utility model also provides a PTC water heater assembly, which comprises the PTC heating bag and the fixing structure of the temperature detection device, wherein the shell is provided with a deep groove, and the PTC heating bag is arranged in the deep groove.

The temperature detection device fixing structure and the PTC water heater assembly provided by the utility model have the following beneficial effects:

the fixing plate is provided with a limiting through hole for the temperature detection device to pass through, and the limiting through hole penetrates through the mounting protrusion, so that the temperature detection device can pass through the limiting through hole in the mounting protrusion under the action of external force; the limiting through hole penetrates through the mounting protrusion, and the tail end of the mounting protrusion is positioned in the mounting groove, so that the temperature detection device can enter the mounting groove after penetrating through the mounting protrusion; the aperture of the limiting through hole at the tail end of the mounting protrusion is smaller than that of the temperature detection device, so that the temperature detection device is clamped in the mounting groove after entering the mounting groove and cannot slide out of the limiting through hole; in addition, because the temperature detection device and the position of the installation protrusion are fixed, namely, the temperature detection device and the position of the fixing plate are fixed, the temperature detection device can be firstly and independently installed on the fixing plate, and then the temperature detection device and the fixing plate are installed on the shell, so that the production efficiency can be improved.

Drawings

FIG. 1 is a top view of a temperature detecting device fixing structure according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of the temperature sensing device mounting structure of FIG. 1 taken along line A-A;

FIG. 3 is a top view of a housing in a temperature sensing device mounting structure in accordance with an embodiment of the present utility model;

FIG. 4 is a side view of a housing in a temperature sensing device mounting structure in accordance with an embodiment of the present utility model;

FIG. 5 is a top view of a fixing plate in a fixing structure of a temperature detecting device according to an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of a fixing plate in the fixing structure of the temperature detecting device of FIG. 5;

FIG. 7 is a front view of a temperature detecting device in an embodiment of the present utility model;

FIG. 8 is a top view of a temperature sensing device in an embodiment of the utility model;

fig. 9 is a front view of a temperature detecting device fixed to a fixing plate in an embodiment of the present utility model;

fig. 10 is a plan view of the temperature detecting device fixed on the fixing plate in the embodiment of the present utility model.

Reference numerals illustrate:

100-temperature detection device; 110-wire harness; 120-sensors; 130-rubber sleeve;

200-a housing; 210-mounting grooves; 220-mounting bosses;

300-fixing plate; 310-mounting a bump; 312-limiting through holes; 313-base; 314-a spring piece part; 320-wire clamping grooves; 330-shrapnel.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10, fig. 1 is a top view of a temperature detecting device fixing structure in an embodiment of the present utility model, fig. 2 is a cross-sectional view of the temperature detecting device fixing structure in fig. 1 along A-A line, fig. 3 is a top view of a housing 200 in the temperature detecting device fixing structure in an embodiment of the present utility model, fig. 4 is a side view of the housing 200 in the temperature detecting device fixing structure in an embodiment of the present utility model, fig. 5 is a top view of a fixing plate 300 in the temperature detecting device fixing structure in an embodiment of the present utility model, fig. 6 is a cross-sectional view of the fixing plate 300 in the temperature detecting device fixing structure in fig. 5, fig. 7 is a front view of the temperature detecting device 100 in an embodiment of the present utility model, fig. 8 is a top view of the temperature detecting device 100 in an embodiment of the present utility model, fig. 9 is a front view of the temperature detecting device 100 fixed on the fixing plate 300 according to the embodiment of the present utility model, and fig. 10 is a top view of the temperature detecting device 100 fixed on the fixing plate 300 according to the embodiment of the present utility model, and this embodiment provides a fixing structure of the temperature detecting device, including a housing 200 and a fixing plate 300, the fixing plate 300 is disposed on the housing 200, the housing 200 has a mounting groove 210, the fixing plate 300 has a mounting protrusion 310, the fixing plate 300 is provided with a limiting through hole 312 through which the temperature detecting device 100 passes, and the limiting through hole 312 penetrates the mounting protrusion 310, the aperture of the limiting through hole 312 at the end of the mounting protrusion 310 is smaller than that of the temperature detecting device 100, and the end of the mounting protrusion 310 is located in the mounting groove 210.

Since the fixing plate 300 is provided with the limiting through hole 312 through which the temperature detecting device 100 passes, and the limiting through hole 312 penetrates through the mounting protrusion 310, the temperature detecting device 100 can pass through the limiting through hole 312 in the mounting protrusion 310 under the action of external force; since the limit through hole 312 penetrates the mounting protrusion 310, the end of the mounting protrusion 310 is located in the mounting groove 210, and thus the temperature detecting device 100 can enter the mounting groove 210 after passing through the mounting protrusion 310; because the aperture of the limiting through hole 312 at the end of the mounting protrusion 310 is smaller than that of the temperature detecting device 100, the temperature detecting device 100 is blocked in the mounting groove 210 and cannot slide out of the limiting through hole 312 after entering the mounting groove 210, so that after the temperature detecting device 100 is put into the mounting groove 210, the temperature detecting device 100 is pulled again, the position of the temperature detecting device 100 can be limited by the mounting protrusion 310, thereby ensuring the accuracy of the position of the temperature detecting device 100 after entering the mounting groove 210, ensuring the accuracy of the detection of the temperature detecting device 100, and ensuring good performance of the PTC water heater assembly; in addition, since the positions of the temperature detecting device 100 and the mounting protrusion 310 are fixed, that is, the positions of the temperature detecting device 100 and the fixing plate 300 are fixed, the temperature detecting device 100 can be mounted on the fixing plate 300 alone, and then the temperature detecting device 100 and the fixing plate 300 can be mounted on the housing 200, so that the production efficiency can be improved.

The temperature detection device 100 is provided with a wire harness 110 and a sensor 120, the sensor 120 is coated with a rubber sleeve 130, and the wire harness 110 is welded with the sensor 120.

Referring to fig. 2, the diameter of the limiting through hole 312 is gradually reduced from the fixing plate 300 to the end of the mounting boss 310.

The aperture of the limiting through hole 312 at the fixing plate 300 is larger than that of the temperature detecting device 100, so that the temperature detecting device 100 can be conveniently inserted into the limiting through hole 312.

Referring to fig. 7, the mounting protrusion 310 includes a base 313 and a spring piece 314, the base 313 extending from the fixing plate 300 to a side away from the fixing plate 300, and the spring piece 314 extending from an edge of the base 313 to a side away from the fixing plate 300. So that the mounting protrusion 310 has sufficient elasticity, the temperature detecting device 100 can conveniently pass through the mounting protrusion 310, and the mounting protrusion 310 is convenient to restore after the temperature detecting device 100 passes through the mounting protrusion 310, so that the temperature detecting device 100 is blocked in the mounting groove 210 and cannot slide out of the limiting through hole 312 after entering the mounting groove 210, and the reliability of the structure can be further improved.

The number of the spring plate portions 314 is at least two. In other embodiments, the number of the spring plate portions 314 may be one, and a cross section of one spring plate portion 314 perpendicular to the axial direction of the mounting protrusion 310 may be C-shaped, and the opening of the C-shaped cross section may be a line or a notch.

The spring plate portions 314 are uniformly distributed along the circumferential direction of the mounting boss 310.

Referring to fig. 5 and 10, the fixing plate 300 further has a wire clamping groove 320, a spring plate 330 extends from one side of the edge of the wire clamping groove 320 to the other side of the wire clamping groove 320, and a wire clamping gap for clamping the wire is formed between the spring plate 330 and the wall surface of the wire clamping groove 320.

Referring to fig. 5 and 10, the number of the elastic pieces 330 is at least two, and the elastic pieces 330 are alternately arranged at the edges of two sides of the wire clamping groove 320. Thus, the wire harness 110 can be ensured to be clamped in the wire clamping groove 320, and the mounting stability of the wire harness 110 can be improved.

Referring to fig. 3, the housing 200 is provided with a mounting boss 220, and the fixing plate 300 is mounted on the mounting boss 220. In this way, the consistency of the positions of the fixing plate 300 mounted on the housing 200 can be further improved, thereby ensuring the consistency of the insertion depth of the rubber sleeve 130 and ensuring the detection accuracy of the temperature detection device 100.

In this embodiment, the assembly process of the fixing structure of the temperature detecting device is as follows:

first, the rubber sleeve 130 of the temperature detecting device 100 is inserted through the limiting through hole 312.

Then, the wire harness 110 is pulled so that the rubber cover 130 is caught by the mounting boss 310, and the wire harness 110 is fixed in the wire catching groove 320.

Then, the fixing plate 300 is mounted on the housing 200.

The present embodiment also provides a PTC water heater assembly, which includes a PTC heating pack and the fixing structure of the temperature detecting apparatus in the above embodiment, wherein the housing 200 is provided with a deep groove, and the PTC heating pack is disposed in the deep groove.

The above description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.

Claims

1. The utility model provides a temperature-detecting device fixed knot constructs, its characterized in that, includes casing and fixed plate, the fixed plate sets up on the casing, the casing has the mounting groove, the fixed plate has the installation arch, the fixed plate has been seted up the confession temperature-detecting device passes spacing through-hole, just spacing through-hole runs through the installation arch, spacing through-hole is located the terminal aperture of installation arch is less than temperature-detecting device, the protruding end of installation is located in the mounting groove.

2. The fixing structure of temperature detecting device according to claim 1, wherein the hole diameter of the limiting through hole is gradually smaller from the fixing plate to the end of the mounting boss.

3. The structure according to claim 1, wherein the limiting through hole is located at the fixing plate with a larger aperture than the temperature detecting device.

4. The structure according to claim 1, wherein the mounting projection includes a base portion extending from the fixing plate to a side away from the fixing plate, and a spring piece portion extending from an edge of the base portion to a side away from the fixing plate.

5. The structure according to claim 4, wherein the number of the spring plate portions is at least two.

6. The structure according to claim 5, wherein the elastic piece portions are uniformly distributed along the circumferential direction of the mounting boss.

7. The structure according to claim 1, wherein the fixing plate further has a wire clamping groove, a spring plate extends from one side of an edge of the wire clamping groove to the other side of the wire clamping groove, and a wire clamping gap for clamping wires is formed between the spring plate and a wall surface of the wire clamping groove.

8. The structure of claim 7, wherein the number of the elastic pieces is at least two, and the elastic pieces are alternately arranged at the edges of two sides of the wire clamping groove.

9. The structure according to claim 1, wherein a mounting boss is provided on the housing, and the fixing plate is mounted on the mounting boss.

10. A PTC water heater assembly comprising a PTC heating pack and a temperature detecting device fixing structure as claimed in any one of claims 1 to 9, wherein the housing is provided with a deep groove, and the PTC heating pack is disposed in the deep groove.