Smoke detection unit sensor fixing structure and smoke detection unit

Abstract

The utility model discloses a smoke detection unit sensor fixing structure and a smoke detection unit, the smoke detection unit sensor fixing structure comprises a fixing housing, any two opposite side surfaces in the fixing housing are provided with circumferential positioning pins, the fixing housing is also provided with a first axial positioning pin, and the first axial positioning pin is provided with a second axial positioning pin. The circumferential positioning pin and the first axial positioning pin can limit the sensor in the circumferential direction and the axial direction respectively. According to the utility model, through the arrangement of the circumferential positioning pin and the first axial positioning pin, a transmission metal support can be replaced, so that the sensor is fixed and limited, and the risk that the metal support cuts a wire harness and the hidden danger of short-circuit combustion are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy storage equipment, and more specifically to a fixing structure of a smoke detection unit sensor and a smoke detection unit. Background Art

[0002] Generally, when installing commonly used sensors, a separate metal bracket is used to fix them inside the smoke detection unit with screws. The metal bracket has the risk of cutting the wiring harness and posing a hidden danger of short circuit and combustion. Therefore, in contrast to using a metal bracket to fix the sensor, an elastic positioning and fixing device must be added to eliminate the metal bracket and screws.

[0003] The traditional way to fix the sensor is to fix the sensor inside the integrated control system with screws through a metal bracket. Due to the small internal space, the operation is inconvenient and the production efficiency is low. Utility Model Content

[0004] The technical problem to be solved by the present invention is how to reduce the risk of the fixing structure of the sensor damaging the wiring harness.

[0005] The present invention solves the above-mentioned technical problems through the following technical means: a fixing structure of a smoke detection unit sensor, comprising a fixing shell, wherein any two opposite side surfaces of the fixing shell are provided with circumferential positioning pins, and the fixing shell is also provided with a first axial positioning pin, and the circumferential positioning pin and the first axial positioning pin can respectively limit the sensor circumferentially and axially.

[0006] By setting the circumferential positioning pin and the first axial positioning pin, the metal bracket of the transmission can be replaced, so as to fix and limit the sensor, avoiding the risk of the metal bracket cutting the wiring harness and the hidden danger of short circuit and combustion.

[0007] As a preferred technical solution, the first axial locating pin includes at least one first locating pin, and the first locating pin includes an annular guide block.

[0008] As a preferred technical solution, a protrusion is provided on the end of the first positioning pin facing the sensor.

[0009] As a preferred technical solution, the fixed shell is further provided with a second axial positioning pin, the second axial positioning pin includes a first limiting buckle, and the first limiting buckle is provided on any two opposite side surfaces in the fixed shell.

[0010] As a preferred technical solution, the second axial positioning pin further includes a second limiting buckle, and the second limiting buckle is provided on a side surface of the fixed shell adjacent to the first limiting buckle.

[0011] As a preferred technical solution, the first limiting buckle and the circumferential positioning pin are located on the same side of the fixed shell.

[0012] As a preferred technical solution, the circumferential locating pins include a plurality of second locating pins, and a guiding slope is provided on the top of the second locating pins.

[0013] As a preferred technical solution, a plurality of grooves are provided on the fixed shell.

[0014] As a preferred technical solution, the plane where the bottom of the fixed shell is located forms a placement area, and the circumferential positioning pin and the first axial positioning pin are both located in the placement area.

[0015] A smoke detection unit comprises any one of the above-mentioned fixing structures of the smoke detection unit sensor and a control unit body, wherein the fixing structure of the smoke detection unit sensor is arranged at any corner of the control unit body.

[0016] The beneficial effects of the present invention are:

[0017] (1) In the present invention, the circumferential positioning pin and the first axial positioning pin are provided to replace the metal bracket of the transmission, thereby fixing and limiting the sensor, avoiding the risk of the metal bracket cutting the wiring harness and the hidden danger of short circuit and combustion.

[0018] (2) In the present invention, the first limiting buckle and the second limiting buckle can be used to perform secondary limiting on the axial direction of the sensor, thereby improving the stability of the fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a fixing structure provided in an embodiment of the present utility model;

[0020] Figure 2 A schematic diagram of the sensor installation structure provided by an embodiment of the present utility model;

[0021] Figure numbers: 1. Control unit body; 101. Fixed shell; 102. Groove; 103. Placement area; 2. First positioning pin; 201. Protrusion; 202. Annular guide block; 3. Second positioning pin; 301. Pin one; 302. Pin two; 303. Pin three; 4. First limit buckle; 5. Second limit buckle; 501. Reinforcing rib. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0023] Example 1

[0024] See Figure 1 A fixing structure for a smoke detection unit sensor includes a fixing shell 101, and a plurality of grooves 102 provided on any two adjacent side surfaces of the fixing shell 101 for smoke to enter the fixing shell 101. In this embodiment, taking the front and rear sides of the fixing shell 101 as an example, a placement area 103 is formed on the plane where the bottom of the fixing shell 101 is located. A circumferential positioning pin, a first axial positioning pin, and a second axial positioning pin are provided in the placement area 103. The circumferential positioning pin, the first axial positioning pin, and the second axial positioning pin can respectively limit the circumferential and axial positions of the sensor.

[0025] By setting the circumferential positioning pin and the first axial positioning pin, the metal bracket of the transmission can be replaced, so as to fix and limit the sensor, avoiding the risk of the metal bracket cutting the wiring harness and the hidden danger of short circuit and combustion. It is convenient to disassemble and assemble without the use of electric tools, and does not require installation space beyond the size of the resistor, so the space utilization rate is greatly improved; and the metal bracket and screws are eliminated, thereby greatly reducing costs.

[0026] In this embodiment, the materials of the circumferential positioning pin, the first axial positioning pin and the second axial positioning pin can all be set to structures with a certain deformation ability, such as plastic buckles, plastic positioning blocks, etc.

[0027] See Figure 1 The circumferential positioning pins include a plurality of second positioning pins 3, which are arranged on any two adjacent side surfaces in the fixed shell 101. In this embodiment, the front and rear side surfaces of the fixed shell 101 are taken as an example, and are located on the same side surface as the second axial positioning pins. A guide slope is provided on the top of the second positioning pin 3, which is used to guide the sensor to ensure that after it is placed above the placement area 103, it can slide into the placement position on the placement area 103 that is compatible with the sensor through the guide slope.

[0028] See Figure 1, the first axial locating pin includes at least one first locating pin 2. In this embodiment, two first locating pins 2 are provided. Of course, there can also be three, four, etc., and it is not limited to this. The first locating pin 2 includes an annular guide block 202 and a limiting buckle. The annular guide block 202 is used to position the sensor and can also limit it in the X direction, that is, the length direction of the fixed shell 101 and the Y direction, that is, the width direction of the fixed shell 101. The end of the annular guide block 202 connected to the sensor, that is, the top, is also provided with a protrusion 201 for guiding the sensor. The sensor is also provided with a docking groove adapted to the annular guide block 202. The limiting buckle is inverted. A through hole that can form a channel for the limiting buckle to pass through is opened at the corresponding position of the sensor. The top of the limiting buckle is provided with an inclined surface. When the sensor is installed, the inclined surface is guided by the edge of the through hole. After the triangular part of the limiting buckle passes through the through hole, it can rebound under the elasticity of the limiting buckle itself, and limit the lower edge of the triangular part and the plane where the top of the sensor is located.

[0029] See Figure 1 Three second positioning pins 3 are respectively provided on the front and rear sides of the fixed shell 101, which are pin 1 301, pin 2 302, and pin 303 along the length direction of the fixed shell 101. Among them, the first positioning pin 2 provided on the front side of the fixed shell 101 on the same side as the pin 1 301, pin 2 302, and pin 303 is located between the pin 1 301 and the pin 2 302, and the first positioning pin 2 provided on the rear side of the fixed shell 101 on the same side as the pin 1 301, pin 2 302, and pin 303 is located between the pin 2 302 and the pin 303.

[0030] See Figure 1 The second axial positioning pin includes a first limiting buckle 4 and a second limiting buckle 5. The first limiting buckle 4 is provided on any two opposite sides of the fixed shell 101. In this embodiment, two first limiting buckles 4 are provided, which are respectively provided on the front and rear sides of the fixed shell 101 and are symmetrically arranged. The second limiting buckle 5 is provided on a side surface of the fixed shell 101 adjacent to the first limiting buckle 4. Only one second limiting buckle 5 is provided. In this embodiment, it is located on the right side of the fixed shell 101. Of course, two can also be provided, both on the right side of the fixed shell 101 or both on the left side of the fixed shell 101 or one on the right side of the fixed shell 101 and the other on the left side of the fixed shell 101. The first limiting buckle 4 and the second limiting buckle 5 can both be plastic buckles in the prior art, and a reinforcing rib 501 is further provided on the back of the second limiting buckle 5.

[0031] Example 2

[0032] See Figure 2A smoke detection unit includes a fixing structure of the smoke detection unit sensor in Example 1, a sensor, and a control unit body 1. The fixing structure of the smoke detection unit sensor is fixedly connected to the sensor. The fixing structure of the smoke detection unit sensor can be set at any corner of the control unit body 1. In this embodiment, the fixing structure is located at the upper right corner of the control unit body 1. Of course, it can be set at the lower right corner, upper left corner, and lower left corner according to the layout. Of course, it can also be any position on the control unit body 1, and is not limited to this. It should be noted that the smoke detection unit in this embodiment can be a smoke detection device.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A fixing structure of a smoke detection unit sensor, comprising a fixing shell (101), characterized in that: Any two opposite side surfaces in the fixed shell (101) are provided with circumferential positioning pins, and the fixed shell (101) is also provided with a first axial positioning pin. The circumferential positioning pin and the first axial positioning pin can limit the sensor circumferentially and axially respectively.

2. A fixing structure of a smoke detection unit sensor according to claim 1, characterized in that: The first axial positioning pin comprises at least one first positioning pin (2), and the first positioning pin (2) comprises an annular guide block (202).

3. A fixing structure of a smoke detection unit sensor according to claim 2, characterized in that: A protrusion (201) is provided at one end of the first positioning pin (2) facing the sensor.

4. The fixing structure of a smoke detection unit sensor according to claim 1, characterized in that: The fixing shell (101) is also provided with a second axial positioning pin, the second axial positioning pin comprises a first limiting buckle (4), and the first limiting buckle (4) is provided on any two opposite side surfaces in the fixing shell (101).

5. A fixing structure of a smoke detection unit sensor according to claim 4, characterized in that: The second axial positioning pin further comprises a second limiting buckle (5), and the second limiting buckle (5) is arranged on a side surface of the fixing shell (101) adjacent to the first limiting buckle (4).

6. A smoke detection unit sensor fixing structure according to claim 4, characterized in that: The first limit buckle (4) and the circumferential positioning pin are located on the same side of the fixing shell (101).

7. The fixing structure of a smoke detection unit sensor according to claim 1, characterized in that: The circumferential positioning pins include a plurality of second positioning pins (3), and the tops of the second positioning pins (3) are provided with guiding inclined surfaces.

8. The fixing structure of a smoke detection unit sensor according to claim 1, characterized in that: The fixed shell (101) is provided with a plurality of grooves (102).

9. The fixing structure of a smoke detection unit sensor according to claim 1, characterized in that: The plane where the bottom of the fixed shell (101) is located forms a placement area (103), and the circumferential positioning pin and the first axial positioning pin are both located in the placement area (103).

10. A smoke detection unit, characterized in that: It comprises a fixing structure of a smoke detection unit sensor as claimed in any one of claims 1 to 9 and a control unit body (1), wherein the fixing structure of the smoke detection unit sensor is arranged at any corner of the control unit body (1).

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