JP2014173927A - Temperature sensor and assembly structure of temperature sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temperature sensor improving assemblability to enable reliable assembly, and provide an assembly structure of the temperature sensor.SOLUTION: A temperature sensor 1 presses a measurement temperature surface 1a facing a measured temperature body against the measured temperature body by assembling a module component arranged near the measured temperature body, and detects the temperature of the measured temperature body from the measurement temperature surface 1a. The temperature sensor 1 includes an arm 14 capable of being elastically deformed in a linear direction orthogonal to the measurement temperature surface 1a. When viewing the measurement surface 1a in a plane manner, the arm 14 is provided in a state where the measurement temperature surface 1a is included on the projection surface of the arm 14.

Description

  The present invention relates to a temperature sensor and a temperature sensor assembly structure.

  Conventionally, a temperature sensor that detects the temperature of a temperature-measuring body by pressing the temperature-measurement surface against the temperature-measuring body such as a battery has been proposed. This temperature sensor has an arm on each side of the sensor body with a temperature measuring surface, and uses the elastic restoring force of the arm by fitting this arm into a module part provided close to the temperature-measured body. Thus, the temperature measuring surface is pressed against the temperature object (see Patent Document 1).

JP 2002-365350 A

  However, since the temperature sensor described in Patent Document 1 has arms on both sides of the sensor body, when assembling the temperature sensor to the module component, only one of the arms is fitted first, It was difficult to fit the other arm, and the assembly was never good. Furthermore, there is a case in which only one arm is fitted first and the other arm is not noticed that the fitting has failed.

  The present invention has been made in order to solve such a conventional problem, and an object of the present invention is to improve the assembling property and to assemble the temperature sensor capable of assured assembling. To provide a structure.

  The temperature sensor according to the present invention is assembled with a module part arranged close to the temperature measuring object, and the temperature measuring surface facing the temperature measuring object is pressed against the temperature measuring object, and the temperature measuring surface is measured from the temperature measuring surface. This is a temperature sensor that detects the temperature of a warm body, and includes an arm that can be elastically deformed in a linear direction orthogonal to the temperature measuring surface. When the temperature measuring surface is viewed in plan, the temperature measuring surface is on the projection surface of the arm. It is provided in an included state.

  According to the temperature sensor of the present invention, since the arm that can be elastically deformed in the linear direction orthogonal to the temperature measuring surface is provided, the temperature measuring surface can be pressed against the temperature-measured body by the elastic restoring force of the arm. In particular, since the temperature measuring surface is included on the projection surface of the arm, the arm is provided so as to straddle the temperature measuring surface, and the temperature measuring surface is suitably used by the elastic restoring force of the arm. It can be pressed against the temperature object. For this reason, there is no need for the arms to be provided on both sides of the temperature measuring surface, and as described in Patent Document 1, only one of the arms is not fitted first. Therefore, the assemblability can be improved and the reliable assembling can be performed.

  In the temperature sensor of the present invention, the arm is preferably cantilevered extending in an oblique direction with respect to the temperature measuring surface.

  According to this temperature sensor, the arm has a cantilever shape extending in an oblique direction with respect to the temperature measuring surface. Therefore, by inserting the temperature sensor into the module component along the direction from the base side of the arm, It is possible to insert the temperature sensor smoothly while bending the tip, which can further improve the assembly.

  Moreover, in the temperature sensor of the present invention, it is preferable that the temperature sensor has a retaining piece provided on the side in the direction extending from the base portion of the arm to the tip portion rather than the arm.

  According to this temperature sensor, since it further includes a retaining piece provided on the side extending from the base portion of the arm to the tip portion rather than the arm, the temperature sensor is inserted into the module component from the base side of the arm. Thus, the retaining piece can be fitted to the module part via the arm, and the situation where the retaining piece comes into contact with the module part at the time of insertion and the insertion force becomes high is prevented.

  The temperature sensor assembly structure of the present invention includes the temperature sensor described above and a module component to which the temperature sensor is fitted, and the module component has a surface portion that is substantially parallel to the temperature measuring surface. The temperature sensor is characterized in that the temperature measuring surface is pressed against the temperature measurement object by the elastic restoring force of the arm acting on the surface portion.

  According to the assembly structure of the temperature sensor of the present invention, the module component has a surface portion that is substantially parallel to the temperature measurement surface, and the temperature sensor has the temperature measurement surface by the elastic restoring force of the arm acting on the surface portion. Press against the temperature object. Here, when the surface portion is inclined with respect to the temperature measuring surface, the elastic restoring force of the arm is difficult to act on the temperature measuring surface, but the module part has a surface portion that is substantially parallel to the temperature measuring surface. The elastic restoring force can be appropriately applied, and the temperature measuring surface can be suitably pressed against the temperature measurement object.

  Further, in the temperature sensor assembly structure of the present invention, the temperature sensor has a wider arm than the retaining piece, and the module part has a hole corresponding to the size of the retaining piece. Preferably it is.

  According to this temperature sensor assembly structure, the arm is formed wider than the retaining piece, and the module component has a hole corresponding to the size of the retaining piece. For this reason, when the temperature sensor is inserted into the module component, the arm does not fit into the hole that receives the retaining piece, and the arm passes through the hole, and the temperature sensor is fixed at an inappropriate place. Can be prevented.

  In the temperature sensor assembly structure of the present invention, it is preferable that the module component has a groove portion for positioning the tip of the arm in the surface portion.

  According to this temperature sensor assembly structure, the module part is formed with a groove for positioning the tip of the arm in the surface part, so when the temperature sensor is inserted into the module part, the insertion completion position Becomes clear, and a situation where the temperature sensor is located at an inappropriate position can be prevented.

  ADVANTAGE OF THE INVENTION According to this invention, the temperature sensor which can improve assembly | attachment property and can perform reliable assembly | attachment can be provided.

It is a block diagram which shows the assembly structure of the temperature sensor which concerns on embodiment of this invention, Comprising: (a) shows the perspective view of a temperature sensor, (b) has shown the side view of the temperature sensor. It is the schematic which shows the projection surface of the arm shown in FIG. It is a block diagram which shows the assembly | attachment structure of the temperature sensor which concerns on this embodiment, Comprising: (a) shows the perspective view of a module component, (b) has shown II sectional drawing of (a). It is a 1st figure which shows the mode of the assembly | attachment of the temperature sensor 1 which concerns on this embodiment. It is a 2nd figure which shows the mode of the assembly | attachment of the temperature sensor 1 which concerns on this embodiment. It is a 3rd figure which shows the mode of the assembly | attachment of the temperature sensor 1 which concerns on this embodiment.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the embodiments. FIG. 1 is a configuration diagram showing an assembly structure of a temperature sensor according to an embodiment of the present invention, where (a) shows a perspective view of the temperature sensor and (b) shows a side view of the temperature sensor. .

  The temperature sensor 1 shown in FIG. 1A and FIG. 1B presses a temperature measuring surface 1a facing a temperature measuring object such as a battery against the temperature measuring object, and measures the temperature from the temperature measuring surface 1a. It detects the temperature of the warm body. The temperature sensor 1 is entirely made of resin, and the sensor main body 2 is insert-molded. One surface of the sensor main body 2 constitutes a temperature measuring surface 1a that is pressed against the temperature-measured body.

  Such a temperature sensor 1 includes a main body portion 10, an overhang portion 12, an arm 14, a retaining piece 16, and a grip portion 18. The main body 10 is a part that becomes the main body of the temperature sensor 1 and has a substantially rectangular parallelepiped shape as shown in FIG. The temperature measuring surface 1 a described above is flush with the lower surface 10 a of the main body 10. The temperature measuring surface 1a may slightly protrude from the lower surface 10a.

  The overhanging portion 12 is a piece that protrudes laterally on the distal end side of the main body portion 10. The arm 14 is elastically deformable in a linear direction orthogonal to the temperature measuring surface 1a, and has a cantilever shape extending in an oblique direction with respect to the temperature measuring surface 1a. More specifically, the arm 14 has a concave shape in plan view, and both ends of the concave portion, that is, the base portion 14 a are connected to the respective overhang portions 12. Further, the distal end portion 14b of the arm 14 is connected to each other, and the distal end portion 14b is elastically deformed so as to rotate around the base portion 14a. Further, a bulging portion 14c extending in the extending direction of the connected tip portion 14b is formed on one side of the tip portion 14b.

  The above-described elastic deformation in the linear direction is not only a concept that elastically deforms only in the linear direction, but also a concept that includes elastic deformation in the linear direction + the front-rear direction (for example, rotation) as in the arm 14 shown in FIG. is there. Therefore, if the arm 14 is elastically deformed including the linear direction, the arm 14 may be elastically deformed in an oblique direction or may be elastically deformed in the rotation direction.

  Further, as is clear from FIG. 1, in the present embodiment, the arm 14 is provided so as to straddle the temperature measuring surface 1a. That is, when the temperature measuring surface 1 a is viewed in plan, the temperature measuring surface 1 a is provided in a state of being included in the projection surface of the arm 14.

  FIG. 2 is a schematic view showing a projection surface of the arm 14 shown in FIG. For example, when the temperature measuring surface 1a is viewed in plan from the upper surface 10b side which is the opposite surface of the lower surface 10a of the main body 10, the projection surface of the arm 14 becomes a shaded portion T shown in FIG. That is, the projection surface of the arm 14 in the present embodiment is a concept including the space portion T1 sandwiched between the arms 14. The temperature measuring surface 1a according to the present embodiment is provided in a state of being included in such a projection surface.

  The temperature measuring surface 1a is included in the projection surface of the arm 14 not only when the temperature measuring surface 1a is completely included in the projection surface but also when the temperature measuring surface 1a slightly protrudes from the projection surface. Also good. In other words, it is a concept that approximately (for example, half) of the temperature measuring surface 1a should be positioned on the projection surface.

  Refer to FIG. 1 again. The retaining piece 16 is a portion that is fitted to the module component when the temperature sensor 1 is attached to the module component, which will be described later, and is formed on the upper surface 10 b of the main body 10. In more detail, the retaining piece 16 is provided on the side of the arm 14 in the direction extending from the base portion 14 a to the distal end portion 14 b, that is, on the rear end side of the arm 14. Further, as can be seen from FIG. 1B, the retaining piece 16 has a right triangle shape, and a tapered surface 16a which is a right triangle inclined surface faces the tip side.

  The grip portion 18 is a portion provided to protrude from the lateral intermediate position of the main body portion 10 and is a portion that is gripped by an operator when the temperature sensor 1 is attached to the module component. The grip portion 18 is provided so as to protrude from both sides of the main body portion 10.

  As shown in FIG. 1, the retaining piece 16 is formed in a narrow shape like a protrusion, and the arm 14 is formed wider than the retaining piece 16 by connecting the distal end portions 14 b to each other. In addition, a lead wire is drawn out at the rear end of the main body 10, and a temperature signal detected by the sensor main body 2 is input from a lead wire at the rear end to a CPU (Central Processing Unit) or the like.

  FIGS. 3A and 3B are configuration diagrams showing the temperature sensor assembly structure according to the present embodiment, in which FIG. 3A is a perspective view of module parts, and FIG. 3B is a cross-sectional view taken along line II of FIG. ing. In addition, in FIG.3 (b), the battery which is a to-be-measured body shall also be illustrated.

  As shown in FIGS. 3A and 3B, the module component 20 is a member to which the temperature sensor 1 is assembled and has a substantially L-shaped cross section. The temperature sensor 1 is assembled so as to be inserted from the open side having an L-shaped cross section. In addition, one end of the L shape (an open side end 20a described later) is a free end, and the other end of the L shape is a fixed end. For this reason, when the temperature sensor 1 is inserted, one end of the module component 20 can be bent in the arrow A direction. Further, the module component 20 has a surface portion 22 that is substantially parallel to the temperature measuring surface 1a.

  Further, the module component 20 has a hole 24 and a groove 26 in the surface portion 22. The hole 24 is a through-hole formed in a narrow width according to the size of the retaining piece 16. The groove portion 26 is a portion for positioning the tip end portion 14 b of the arm 14 in the surface portion 22, is formed over the entire width direction of the L-shaped module component 20, and is wider than the hole portion 24. Yes.

  Next, how the temperature sensor 1 according to this embodiment is assembled will be described in detail. 4-6 is a figure which shows the mode of the assembly | attachment of the temperature sensor 1 which concerns on this embodiment. 4 to 6, the temperature sensor 1 is shown in a side view and the module component 20 is shown in a cross-sectional view for easy understanding.

  First, as shown in FIG. 4, the operator inserts the temperature sensor 1 from the open side of the module component 20. The open end 20a of the module component 20 and the arm 14 of the temperature sensor 1 are in contact with each other. By this contact, the open end 20a of the module component 20 bends in the direction of arrow A, and the arm 14 of the temperature sensor 1 bends in the direction of the temperature measurement object.

  At this time, the arm 14 is formed in a cantilever shape that is inclined with respect to the temperature measuring surface 1a. In particular, the arm 14 has a cantilever shape extending from the base portion 14a side toward the open side, and is inserted into the module component 20 from the base portion 14a side. For this reason, the operation of inserting the temperature sensor 1 from the open side of the module component 20 is facilitated.

  Next, the operator inserts the temperature sensor 1 further as shown in FIG. Then, the retaining piece 16 comes into contact with the open end 20 a of the module component 20. Thereby, the open end 20a of the module component 20 bends in the arrow A direction. Since the retaining piece 16 is not elastically deformed unlike the arm 14, the open-side end 20 a of the module component 20 is bent further in the direction of arrow A than when contacting the arm 14.

  Further, at this time, as shown in FIG. 5, the tip end portion 14 b of the arm 14 passes through the hole portion 24. This is because, since the hole 24 is formed narrow like the retaining piece 16, the distal end portion 14 b of the wide arm 14 does not fit into the hole 24. In particular, since the arm 14 has the bulging portion 14 c in this embodiment, the corner of the arm 14 is not caught in the hole portion 24, and the insertion is performed smoothly. That is, when there is no bulging part 14c, there is a possibility that the corner part of the arm 14 slightly enters the hole part 24. In such a case, a catch may occur when the arm 14 is inserted. However, since the arm 14 has the bulging part 14c in this embodiment, it is made into the shape where a corner does not pass on the hole part 24 at the time of insertion, and smooth insertion will be performed. Note that the bulging portion 14c protrudes from the module component 20 after the assembly is completed. That is, the original function of the bulging part 14c is an operation part for releasing the engagement between the arm 14 and the module component 20 when removing the temperature sensor 1, but in this embodiment, in addition to the original function, It also functions as a part that assists smooth insertion.

  Thereafter, when the operator further inserts the temperature sensor 1, as shown in FIG. 6, the tip end portion 14 b of the arm 14 reaches the groove portion 26 and the retaining piece 16 reaches the hole portion 24. At this time, the distal end portion 14 b of the arm 14 is elastically restored by the depth of the groove portion 26 and is fitted into the groove portion 26. Thereby, positioning of the temperature sensor 1 is achieved. Furthermore, the open end 20 a of the module component 20 returns to the temperature-measured body, and the tip of the retaining piece 16 enters the hole 24. Thereby, retaining of the temperature sensor 1 is achieved.

  In addition, in the state shown in FIG. 6, the elastic restoring force of the arm 14 is concentrated on the shaded portion T shown in FIG. 2 in the main body 10 of the temperature sensor 1, so that the temperature measuring surface 1a has a temperature to be measured. It will be suitably pressed against the body.

  Furthermore, the surface part 22 of the module component 20 is parallel to the temperature measuring surface 1a. For this reason, as in the case where the surface portion 22 is not parallel to the temperature measuring surface 1a but is slanted, the elastic restoring force of the arm 14 is difficult to escape in the front end direction, the rear end direction and the side of the main body portion 10, and the like. The one-layer temperature measuring surface 1a is preferably pressed against the temperature-measured body.

  In addition, since the retaining piece 16 is provided on the rear end side of the arm 14, it is possible to prevent a situation in which the retaining piece 16 comes into contact with the module component 20 before insertion and the insertion force is increased. It becomes.

  Thus, according to the temperature sensor 1 according to the present embodiment, the arm 14 that is elastically deformable in the linear direction orthogonal to the temperature measuring surface 1 a is provided. Therefore, the temperature measuring surface 1 a is obtained by the elastic restoring force of the arm 14. Can be pressed against the temperature object. In particular, since the temperature measuring surface 1 a is included on the projection surface of the arm 14, the arm 14 is provided so as to straddle the temperature measuring surface 1 a, and measurement is performed by the elastic restoring force of the arm 14. The warm surface 1a can be suitably pressed against the temperature object. For this reason, it is not necessary to provide the arm 14 on both sides of the temperature measuring surface 1a, and as described in Patent Document 1, only one of the arms 14 is fitted first. Therefore, the assemblability can be improved and the reliable assembling can be performed.

  Further, since the arm 14 has a cantilever shape extending in an oblique direction with respect to the temperature measuring surface 1 a, the arm 14 is inserted into the module component 20 along the direction from the base portion 14 a side of the arm 14. The temperature sensor 1 can be inserted smoothly while bending the distal end portion 14b of the 14, and the assemblability can be further improved.

  Moreover, since the temperature sensor 1 has the retaining piece 16 provided on the side of the arm 14 in the direction extending from the base portion 14a to the tip portion 14b rather than the arm 14, the temperature sensor 1 is inserted into the module component 20. Thus, the retaining piece 16 can be fitted to the module component 20 via the arm 14, and the situation where the retaining piece 16 comes into contact with the module component 20 before insertion and the insertion force is increased is prevented. .

  Furthermore, according to the assembly structure of the temperature sensor 1 according to the present embodiment, the module component 20 has the surface portion 22 that is substantially parallel to the temperature measuring surface 1a, and the temperature sensor 1 has an elastic restoring force of the arm 14. By acting on the surface portion 22, the temperature measuring surface 1a is pressed against the temperature measurement object. Here, when the surface portion 22 is inclined with respect to the temperature measuring surface 1a, the elastic restoring force of the arm 14 hardly acts on the temperature measuring surface 1a, but the surface portion in which the module component 20 is substantially parallel to the temperature measuring surface 1a. Therefore, the elastic restoring force of the arm 14 can be appropriately applied, and the temperature measuring surface 1a can be suitably pressed against the temperature measurement object.

  Further, the arm 14 is formed wider than the retaining piece 16, and the module component 20 has a hole 24 corresponding to the size of the retaining piece 16. For this reason, when the temperature sensor 1 is inserted into the module component 20, the arm 14 does not fit into the hole 24 that receives the retaining piece 16, and the arm 14 passes through the hole 24, which is not appropriate. It is possible to prevent the temperature sensor 1 from being fixed at the place.

  Further, since the module part 20 has a groove part 26 for positioning the tip of the arm 14 in the surface part 22, when the temperature sensor 1 is inserted into the module part 20, the insertion completion position becomes clear. It is possible to prevent the temperature sensor 1 from being located at an inappropriate place.

  As described above, the present invention has been described based on the embodiment, but the present invention is not limited to the above embodiment, and may be modified without departing from the gist of the present invention.

  For example, in the temperature sensor 1 according to the present embodiment, the tip end portion 14b of the arm 14 is connected to one, but the tip end portion 14b may be connected to two. In addition, the arm 14 is provided on the front end side of the main body 10, but is not limited thereto, and may be provided on the intermediate portion or the rear end side, and a plurality of arms 14 may be provided at any of the front end, the intermediate portion, and the rear end. There may be a book.

  Furthermore, in the temperature sensor 1 according to the present embodiment, the temperature measuring surface 1a only needs to be included on the projection surface of the arm 14, but this projection surface is a projection surface at the completion of assembly, and the arm 14 is bent. It is not the projection plane in the state before the release.

  Needless to say, the shape, size, and the like shown in the above embodiment can be changed as appropriate.

DESCRIPTION OF SYMBOLS 1 ... Temperature sensor 1a ... Temperature measuring surface 2 ... Sensor main body 10 ... Main-body part 10a ... Lower surface 10b ... Upper surface 12 ... Overhang | projection part 14 ... Arm 14a ... Base part 14b ... Tip part 14c ... Protrusion part 16 ... Retaining piece 16a ... Tapered surface 18 ... gripping part 20 ... module part 20a ... open side end part 22 ... surface part 24 ... hole part 26 ... groove part T ... hatched part T1 ... space part

Claims (6)

By assembling with a module part placed close to the temperature measuring object, the temperature measuring surface facing the temperature measuring object is pressed against the temperature measuring object to detect the temperature of the temperature measuring object from the temperature measuring surface. A temperature sensor that
An arm that is elastically deformable in a linear direction perpendicular to the temperature measuring surface;
When the temperature measuring surface is viewed in plan, the temperature sensor is provided in a state where the temperature measuring surface is included on the projection surface of the arm. The temperature sensor according to claim 1, wherein the arm has a cantilever shape extending in an oblique direction with respect to the temperature measuring surface. The temperature sensor according to claim 2, further comprising a retaining piece provided on a side of the arm in a direction extending from a base portion to a distal end portion of the arm. A temperature sensor according to claim 3;
A module part to which the temperature sensor is fitted, and
The module component has a surface portion substantially parallel to the temperature measuring surface,
An assembly structure of a temperature sensor, wherein the temperature sensor presses the temperature measuring surface against a temperature measurement object by an elastic restoring force of the arm acting on the surface portion. The temperature sensor is formed such that the arm is wider than the retaining piece,
The temperature sensor assembly structure according to claim 4, wherein the module component has a hole portion corresponding to a size of the retaining piece. 6. The temperature sensor assembly structure according to claim 4, wherein the module part is formed with a groove portion for positioning the tip of the arm in the surface portion.

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