JPH053950U - Temperature detection sensor - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a temperature detection sensor in which a case is mounted on a mounting member with one-touch and the mounting member is prevented from falling off. [Structure] The case 1 encloses a temperature sensing element 2 and has a bottom plate 1a integrally formed with a locking portion 7 and a protruding portion 8. The mounting member 9 forms two through holes 9a and 9b. The elastic portion 7a of the locking portion 7 is inserted into the first through hole 9a and locked by snap fit. The projection 8 has a locking projection 8a provided at the tip thereof that locks at the edge of the second through hole 9b.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a temperature detection sensor in which a temperature sensing element is enclosed in a case.

[0002]

[Prior Art]

 A conventional temperature detecting sensor is generally configured such that it is fixed at a predetermined position with a screw thread formed on a case or a bolt and nut as a separate member as shown in Japanese Utility Model Publication No. 53-36155.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional technique, it is difficult to attach since it is fixed by screws. The present invention has been made in view of the above problems, and an object thereof is to provide a temperature detection sensor in which a case is one-touch mounted on a mounting member and does not fall off from the mounting member.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention comprises a case in which a temperature sensing element is enclosed, a locking part which is inserted into a first through hole of the mounting member and elastically locked in order to mount the case on the mounting member. A temperature detection sensor is provided, which is provided with a protrusion that is inserted into the second through hole of the mounting member, and the protrusion includes an engagement protrusion that engages with the second through hole.

[0005]

【Example】

 A preferred embodiment of the temperature detecting sensor according to the present invention will be described in detail with reference to the accompanying drawings. In FIGS. 1 and 2, reference numeral 1 denotes a case, in which the temperature sensing element 2 is encapsulated with an encapsulating resin 3. The temperature sensing element 2 is composed of, for example, a thermistor whose resistance value changes according to temperature. The temperature sensing element 2 is connected to the terminal 5 via the lead wire 4. A connector portion 6 is integrally formed on the side surface of the case 1, and the terminal 5 is fixed thereto. The bottom plate 1a of the case 1 is integrally formed with a locking portion 7 and a protrusion 8. The locking portion 7 has a pair of elastic arms 7 a that elastically lock with the first through hole 9 a formed in the mounting member 9. By fitting the protruding portion 8 into the second through hole 9b of the mounting member 9, it serves as a detent for the case 1 with respect to the mounting member 9. Thus, the case 1, the connector portion 6, the locking portion 7 and the projection portion 8 are integrally formed of a resin material. It is needless to say that the engaging portion 7 and the protruding portion 8 are not necessarily formed integrally with the case 1 and may be fixed to the case 1 by a separate member.

The protrusion 8 has a locking protrusion 8 a at the tip or in the vicinity thereof on the side opposite to the locking portion 7, and locks with the second through hole 9 b. In addition, the protrusion 8 has a notch 8b formed on the side opposite to the locking protrusion 8a in order to facilitate insertion into the second through hole 9b. The case 1 has a ridge 1b formed on the bottom plate 1a in the vicinity of the tip on the side where the locking portion 7 is provided. Thus, the protrusion 1b and the elastic arm 7a sandwich the mounting member 9. The temperature sensing element 2 is encapsulated by molding the temperature sensing element 2 connected to the terminal 5 with the encapsulating resin 3 and further molding it on the outside to form the case 1, or the molded case 1 This is done by inserting the temperature sensing element 2 into the inside and then filling the encapsulating resin 3 therein.

To mount the case 1, first, as shown in FIG. 3, the case 1 is tilted and the protrusion 8 is inserted into the second through hole 9b. Then, after the locking projection 8a is inserted through the second through hole 9b, the case 1 is pressed in the direction of arrow A. Thus, the locking portion 7 is inserted into the first through hole 9a, and further pushed in, the elastic arm 7a elastically locks with the first through hole 9. Therefore, the case 1 can be mounted on the mounting member 9 in a one-touch manner as shown in FIG. Further, in the state of FIG. 1, the protrusion 8 is pressed against the edge of the second through hole 9b. Further, the connector portion 6 can connect the terminal 5 to an external wiring (not shown) by being fitted with an external connector (not shown).

After that, when the pulling-out action of the case 1 occurs in the direction of the arrow B shown in FIG. 1 by lifting the external wiring, the locking projection 8a is locked to the edge of the second through hole 9b. Therefore, the protrusion 8 does not come off from the mounting member 9.

[0009]

[Effect of the device]

 As described above in detail, according to the configuration of the present invention, the case can be attached to the mounting member by one-touch, the mounting is extremely easy, and even if the case is pulled out, the case does not fall off from the mounting member. .

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a temperature detection sensor according to the present invention.

FIG. 2 is an exploded perspective view of the configuration of FIG.

FIG. 3 is an explanatory diagram illustrating a procedure of mounting the case on the mounting member in the configuration of FIG.

[Explanation of symbols]

 1 Case 2 Temperature Sensing Element 7 Locking Part 8 Projecting Part 8a Locking Projecting Part 9 Mounting Member 9a First Through Hole 9b Second Through Hole

Claims (1)

[Claims for utility model registration] 1. A case enclosing a temperature sensing element, and a locking part which is inserted into the first through hole of the mounting member and elastically locked to mount the case on the mounting member. And a protrusion to be inserted into the second through hole of the mounting member, wherein the protrusion includes a locking protrusion that locks with the second through hole.