JP7762031B2 - Temperature Sensor - Google Patents

Description

One aspect of the present invention relates to a temperature sensor.

Patent Document 1 describes a conventional temperature sensor. This temperature sensor includes a temperature measuring element that measures temperature, a pair of wiring sections connected to the temperature measuring element, and a case that houses the temperature measuring element and wiring sections.

International Publication No. 2021/070898

In the temperature sensor described above, a pair of wiring sections extending from the temperature sensor element are routed within the case while maintaining a constant arrangement direction, and then routed from the case to the outside. In this way, if the pair of wiring sections are routed in the same arrangement direction as the sections extending from the temperature sensor element, it may be difficult to control the undulations of the wiring sections, and there is a risk of the wiring sections becoming misaligned (unruly) within the case. Such misalignment of the wiring sections may affect the performance of the temperature sensor.

One aspect of the present invention aims to provide a temperature sensor that can suppress misalignment of the wiring portion.

A temperature sensor according to one aspect of the present invention comprises a temperature measuring element that measures temperature, a pair of wiring sections connected to the temperature measuring element, and a case that houses the temperature measuring element and the pair of wiring sections and through which the wiring sections are discharged to the outside at an outlet section. The case has a guide section that guides the pair of wiring sections that are discharged from the temperature measuring element to the outlet section. The pair of wiring sections are arranged in a first arrangement direction at the outlet section where they are discharged from the temperature measuring element, and the guide section guides the pair of wiring sections in a second arrangement direction that is different from the first arrangement direction.

In the temperature sensor, the case has a guide portion that guides a pair of wiring portions pulled out from the temperature measuring element to the outlet portion. That is, the pair of wiring portions pulled out from the temperature measuring element extend inside the case toward the outlet portion while being guided by the guide portion. The pair of wiring portions are arranged in a first arrangement direction at the outlet portion where they are pulled out from the temperature measuring element. In contrast, the guide portion guides the pair of wiring portions in a state where they are arranged in a second arrangement direction that is different from the first arrangement direction. In this case, the guide portion can form a twisted portion in the pair of wiring portions so as to change the arrangement direction. When a twisted portion is formed in this way, the wiring portions are less likely to become misaligned. As a result, misalignment of the wiring portions can be suppressed.

The pair of wiring sections may be arranged in a second arrangement direction at the outlet section. In this case, a twisted portion is formed in the pair of wiring sections between the lead-out section and the outlet section so as to change the arrangement direction. When such a twisted portion is formed, the wiring sections are less likely to become misaligned.

The guide portion may have a pair of first sidewall portions that guide the pair of wiring portions, and a pair of second sidewall portions that guide the pair of wiring portions when they extend in a direction different from that of the first sidewall portions. In this case, the guide portion can pull the wiring portions out of the outlet portion of the case in a direction different from that guided by the first sidewall portions.

The pair of first sidewalls and the pair of second sidewalls may sandwich and support the pair of wiring portions. In this case, the guide portion can sufficiently support the pair of wiring portions to prevent misalignment.

The pair of second side wall portions may be positioned so that their ends are offset from each other in the direction in which the wiring portion they are guiding extends. When the pair of wiring portions curve to be inserted from the first side wall portion into the second side wall portion, the inner second side wall portion can smoothly accommodate the curved wiring portion.

The guide portion has a main surface, and a guide groove that guides the wiring portion may be formed on the main surface. In this case, the wiring portion can extend while being guided by the guide groove, thereby preventing the wiring portion from shifting out of position.

The case has a first case portion and a second case portion, and the first case portion and the second case portion may have different thermal capacities. For example, if the wiring portion is subjected to thermal fluctuations, the effects of the thermal fluctuations on the temperature measuring element can be suppressed by adjusting the amount of heat in each case portion.

One aspect of the present invention provides a temperature sensor that can suppress misalignment of the wiring portion.

1 is a perspective view of a temperature sensor 1 according to an embodiment of the present invention. FIG. 10 is a perspective view of the temperature sensor with the second case portion of the case omitted. FIG. 2 is an enlarged perspective view of the temperature sensor without the case, showing the structure around the temperature measuring element. 3 is a perspective view of the temperature sensor shown in FIG. 2 as viewed from a different angle. FIG. FIG. 10 is a perspective view showing a guide portion of the first case portion with the wiring portion omitted. FIG. 10 is a perspective view showing a pair of wiring portions of a temperature sensor according to a modified example.

Embodiments will be described in detail below with reference to the accompanying drawings. In the description, identical elements or elements with identical functions will be designated by the same reference numerals, and duplicate descriptions will be omitted.

Figure 1 is a perspective view of a temperature sensor 1 according to an embodiment of the present invention. Figure 2 is a perspective view of the temperature sensor 1 with the second case portion 6B of the case 6 omitted. Figure 3 is an enlarged perspective view of the structure around the temperature measuring element with the case omitted from the temperature sensor 1. The temperature sensor 1 is a sensor that measures temperature and transmits a signal related to the measurement result to a device (not shown) via a pair of wiring sections. In the following explanation, the positional relationships of the various components will be explained using an XYZ coordinate system as shown in each figure.

The temperature sensor 1 comprises a base portion 2, a temperature measurement portion 3, and an extension portion 4. The base portion 2 is the portion that forms the base of the temperature sensor 1. The temperature measurement portion 3 is the portion that measures the temperature. The temperature measurement portion 3 extends from the base portion 2 to the positive side in the X-axis direction. The extension portion 4 is the portion that extends from the base portion 2 to the negative side in the Z-axis direction. The extension portion 4 is the portion that internally guides the wiring portions 5A and 5B from the base portion 2 to the negative side in the Z-axis direction.

As shown in Figures 1 to 3, the temperature sensor 1 includes a case 6, a separator 7 (see Figures 2 and 3), a temperature measuring element 8 (see Figure 3), and a pair of wiring portions 5A and 5B.

The case 6 is a housing that houses the temperature measuring element 8, wiring portions 5A and 5B, and separator 7. The case 6 also allows the wiring portions 5A and 5B housed inside to exit through an outlet 10 located at a predetermined position. The case 6 comprises a first case portion 6A and a second case portion 6B. The first case portion 6A is a member that supports the temperature measuring element 8, wiring portions 5A and 5B, and separator 7 in a positioned state during assembly of the temperature sensor 1. The second case portion 6B is a member that covers the first case portion 6A while it supports the temperature measuring element 8, wiring portions 5A and 5B, and separator 7. The second case portion 6B is formed by resin molding the first case portion 6A while it supports the temperature measuring element 8, wiring portions 5A and 5B, and separator 7. The first case portion 6A and the second case portion 6B may be made of different resin materials. Therefore, the first case portion 6A and the second case portion 6B have different heat capacities. Examples of resin materials that may be used for the first case portion 6A and the second case portion 6B include PPS (polyphenylene sulfide), PBT (polybutylene terephthalate), and PA (polyamide).

As shown in FIG. 2, the first case portion 6A includes a storage portion 11 and a guide portion 12. The storage portion 11 is a portion that stores the temperature sensor 8, wiring portions 5A and 5B, and separator 7. Furthermore, when combined with separator 7, the storage portion 11 is a portion that guides wiring portions 5A and 5B in the X-axis direction. The storage portion 11 has a rectangular box-like configuration with its longitudinal direction in the X-axis direction. Specifically, the storage portion 11 includes a bottom wall portion 11a and a top wall portion 11b that face each other in the Z-axis direction, side wall portions 11c and 11d that face each other in the Y-axis direction, and an end wall portion 11e that is located at the end on the positive side in the X-axis direction. An opening is formed at the end on the negative side in the X-axis direction of the storage portion 11, through which the separator 7 or the like can be inserted. Furthermore, an extension section 13 that extends further toward the negative side in the X-axis direction than the end of the storage section 11 is formed in half of the area on the positive side in the Y-axis direction of the end of the bottom wall section 11a on the negative side in the X-axis direction.

The guide portion 12 guides the wiring portions 5A and 5B from the negative end of the housing portion 11 in the X-axis direction toward the negative side in the Z-axis direction. The guide portion 12 has a guide wall portion 14 that extends from the negative end of the bottom wall portion 11a of the housing portion 11 in the X-axis direction toward the negative side in the Z-axis direction. The guide wall portion 14 is provided in half of the area on the negative side in the Y-axis direction of the end of the bottom wall portion 11a. The guide wall portion 14 extends parallel to the YZ plane. The guide wall portion 14 guides the wiring portions 5A and 5B along the main surface 14a on the negative side in the X-axis direction. Restriction walls 15A and 15B that face each other in the Y-axis direction are formed at the positive end of the guide wall portion 14 in the Z-axis direction.

The guide portion 12 further has a pair of first side wall portions 16A, 16B and a pair of second side wall portions 17A, 17B. The first side wall portions 16A, 16B and the second side wall portions 17A, 17B are formed to rise from the main surface 14a of the guide wall portion 14 toward the negative side in the X-axis direction. The first side wall portions 16A, 16B guide the wiring portions 5A, 5B in the Z-axis direction. The first side wall portions 16A, 16B are provided near the center position of the guide wall portion 14 in the Z-axis direction. The second side wall portions 17A, 17B guide the wiring portions 5A, 5B extending toward the negative side in the Y-axis direction, which is a different direction from the first side wall portions 16A, 16B. The second side wall portions 17A, 17B are provided near the end of the guide wall portion 14 on the negative side in the Z-axis direction. The negative ends of the second side walls 17A and 17B in the Y-axis direction form the outlet 10 of the case 6.

The second case portion 6B covers the portion of the first case portion 6A on the negative side in the X-axis direction. The second case portion 6B covers the vicinity of the end of the accommodation portion 11 on the negative side in the X-axis direction, thereby constituting the base portion 2 (see Figure 1). The second case portion 6B also covers the guide portion 12 from the negative side in the X-axis direction, thereby constituting the extension portion 4 (see Figure 1). The portion of the accommodation portion 11 on the positive side in the X-axis direction is not covered by the second case portion 6B and extends toward the positive side in the X-axis direction. This portion constitutes the temperature measurement portion 3.

As shown in FIG. 3 , the separator 7 is a member that holds the temperature sensor element 8 and guides the wiring portions 5A and 5B. The separator 7 is a plate-shaped member that extends parallel to the XY plane and has its longitudinal direction in the Y-axis direction. The separator 7 has a base portion 21 that supports the temperature sensor element 8 in the positive X-axis direction. The separator 7 also has a partition portion 22 that rises from the positive Z-axis direction at its central position in the Y-axis direction and extends in the X-axis direction. The partition portion 22 extends from the positive X-axis end of the separator 7 to the negative X-axis end. Furthermore, the partition portion 22 has a portion that extends further toward the negative X-axis direction than the negative X-axis end of the separator 7. This portion functions as a guide portion 23 that guides the wiring portions 5A and 5B on the side opposite the temperature sensor element 8 in the X-axis direction. The guide portion 23 has a guide surface 23a that is inclined with respect to the thickness direction (Z-axis direction) of the separator 7. The guide surfaces 23a are formed on both sides in the Y-axis direction at the end of the guide portion 23 on the positive side in the Z-axis direction. The guide surfaces 23a are inclined so that the end of the guide portion 23 tapers toward the positive side in the Z-axis direction.

The temperature measuring element 8 is a sensor that measures temperature. The temperature measuring element 8 has a measuring unit 24 that measures temperature and a pair of terminals 26A, 26B that extend from the measuring unit 24. The temperature measuring element 8 is installed on the base 21 with the measuring unit 24 extending from the positive end of the separator 7 in the X-axis direction. The terminals 26A, 26B are installed on the separator 7 so that they are separated by the partition wall 22. The temperature measuring element 8 is, for example, an NTC thermistor element whose element resistance changes with changes in temperature.

Wiring sections 5A and 5B are electrical wires connected to the temperature sensor element 8 and transmit signals from the temperature sensor element 8 to external devices. The tips of wiring sections 5A and 5B are connected to terminal sections 26A and 26B via connecting members 27, with the coating removed to expose wire 5a. Wiring sections 5A and 5B extend from the connection points toward the negative X-axis direction to the negative end of housing section 11 (see Figure 2). The portion of wiring sections 5A and 5B that extends from the temperature sensor element 8 toward the negative X-axis direction is referred to as lead-out section E1. Wiring sections 5A and 5B at lead-out section E1 are installed on separator 7 so that they are separated by partition wall section 22. The assembly consisting of separator 7, temperature sensor element 8, and lead-out section E1 of wiring sections 5A and 5B is housed within housing section 11. The storage section 11 is filled with a filler material, and the assembly is stored in the storage section 11 while covered with the filler material.

As shown in FIG. 2, wiring portions 5A and 5B pulled out of storage portion 11 bend toward the negative side in the Z-axis direction and extend toward the negative side in the Z-axis direction while being guided by guide portion 12. The portion of wiring portions 5A and 5B that extends toward the negative side in the Z-axis direction while being guided by guide portion 12 is referred to as guided portion E2. In guided portion E2, wiring portions 5A and 5B are supported while being sandwiched between first side wall portions 16A and 16B. Furthermore, wiring portions 5A and 5B bend toward the negative side in the Y-axis direction near the end of guide portion 12 that is toward the negative side in the Z-axis direction and extends toward the negative side in the Y-axis direction while being guided by guide portion 12. The portion of wiring portions 5A and 5B that extends toward the negative side in the Y-axis direction while being guided by guide portion 12 is referred to as guided portion E3. In the guided portion E3, the wiring portions 5A and 5B are supported while being sandwiched between the second side wall portions 17A and 17B. The wiring portions 5A and 5B are guided by the second side wall portions 17A and 17B and are then led out of the case 6 at the outlet portion 10. In this way, the wiring portions 5A and 5B are led out of the case 6 at a different position in the Z-axis direction from the temperature measuring element 8. Furthermore, the wiring portions 5A and 5B are led out of the case 6 so as to extend in a different direction (Y-axis direction) from the direction in which the lead-out portion E1 led out from the temperature measuring element 8 extends (X-axis direction).

Next, the wiring sections 5A and 5B will be described in more detail with reference to Figures 2, 4, and 5. Figure 4 is a perspective view of the temperature sensor 1 in the state shown in Figure 2, viewed from a different angle. Figure 5 is a perspective view of the guide section 12 of the first case section 6A with the wiring sections 5A and 5B omitted.

In the following description, the "arrangement direction" refers to the direction in which the pair of wiring portions 5A, 5B are arranged side by side. That is, the wiring portions 5A, 5B extend in a specific extension direction while maintaining a state in which they are arranged substantially parallel to each other. In this case, the "arrangement direction" refers to the direction perpendicular to the extension direction and in which the wiring portions 5A, 5B face each other. As shown in Figures 2 and 4, in the lead-out portion E1, the wiring portions 5A, 5B are arranged in a first arrangement direction D1. In this embodiment, the Y-axis direction is the first arrangement direction D1 (see also Figure 3).

In contrast, the guide portion 12 guides the wiring portions 5A and 5B in a state in which they are arranged in a second arrangement direction D2 that is different from the first arrangement direction D1. In the guided portion E2 and the guided portion E3, the wiring portions 5A and 5B are arranged in the second arrangement direction D2. Furthermore, in the outlet portion 10, the wiring portions 5A and 5B are arranged in the second arrangement direction D2. In this embodiment, the X-axis direction is the second arrangement direction D2.

First, wiring portion 5A, which is located on the negative side of the Y axis direction in the pull-out portion E1, bends toward the negative side of the Z axis direction at the end of the bottom wall portion 11a of the storage portion 11 that is on the negative side of the X axis direction. Then, wiring portion 5A passes between regulating walls 15A and 15B and extends toward the negative side of the Z axis direction along the main surface 14a of the guide wall portion 14. Wiring portion 5B, which is located on the positive side of the Y axis direction in the pull-out portion E1, is pulled out from the opening of the storage portion 11 and extends to the expansion portion 13. Then, wiring portion 5B bends toward the negative side of the Y axis direction and bends toward the negative side of the Z axis direction at the position of regulating wall 15B. Then, wiring portion 5B passes between regulating walls 15A and 15B and extends toward the negative side of the Z axis direction. At this time, wiring portion 5B extends toward the negative side of the Z axis direction while being arranged adjacent to wiring portion 5A at a position on the negative side of the X axis direction. In this way, the second arrangement direction D2 of the wiring portions 5A and 5B corresponds to the X-axis direction. Note that when laying the wiring portions 5A and 5B, the restricting walls 15A and 15B restrict movement of the wiring portions 5A and 5B in the Y-axis direction.

When the wiring portions 5A, 5B pass between the restricting walls 15A, 15B and extend toward the negative side in the Z-axis direction, they are inserted into the space between the first side walls 16A, 16B. As a result, the wiring portions 5A, 5B are sandwiched from both sides in the Y-axis direction by the first side walls 16A, 16B. Here, the first side walls 16A, 16B sandwich the wiring portions 5A, 5B, which are aligned in the X-axis direction, from the Y-axis direction, which is perpendicular to the alignment direction. Therefore, the gap between the first side walls 16A, 16B is set to a dimension corresponding to the diameter of one wiring portion 5A, 5B. As a result, the first side walls 16A, 16B can support the wiring portions 5A, 5B while maintaining the second alignment direction D2 in the X-axis direction.

When the wiring portions 5A, 5B pass through the first side walls 16A, 16B and extend toward the negative side in the Z-axis direction, they bend toward the Y-axis direction near the lower end of the guide wall 14 while maintaining the second arrangement direction D2 in the X-axis direction. A restricting wall 18 is provided near the lower end of the guide wall 14 at a position on the positive side of the Y-axis direction relative to the wiring portions 5A, 5B (see Figure 4). The restricting wall 18 restricts movement toward the positive side in the Y-axis direction when the wiring portions 5A, 5B are bent.

When wiring portions 5A, 5B bend near the lower end of guide wall portion 14, they extend toward the negative side in the Y-axis direction and are inserted into the space between second side wall portions 17A, 17B. As a result, wiring portions 5A, 5B are sandwiched from both sides in the Z-axis direction by second side wall portions 17A, 17B. Here, second side wall portions 17A, 17B sandwich wiring portions 5A, 5B, which are aligned in the X-axis direction, from the Z-axis direction, which is perpendicular to the alignment direction. Therefore, the gap between second side wall portions 17A, 17B is set to a dimension corresponding to the diameter of one wiring portion 5A, 5B. As a result, second side wall portions 17A, 17B can support wiring portions 5A, 5B while maintaining second alignment direction D2 in the X-axis direction. Furthermore, once the wiring sections 5A and 5B pass through the second sidewall sections 17A and 17B, they are pulled out to the outside through the outlet section 10.

The second side wall portions 17A, 17B are arranged such that their ends 17Aa, 17Ba are offset from each other in the direction (Y-axis direction) in which the wiring portions 5A, 5B they guide extend. Ends 17Aa, 17Ba are the ends on the positive side of the second side wall portions 17A, 17B in the Y-axis direction. Here, when the wiring portions 5A, 5B are bent near the lower end of the guide wall portion 14, they are inserted into the second side wall portions 17A, 17B in a significantly curved state. At this time, the second side wall portion 17A on the positive side in the Z-axis direction is positioned on the inner side of the curved wiring portions 5A, 5B. End 17Aa of the inner second side wall portion 17A is offset from end 17Ba of the outer second side wall portion 17B to a position farther from the restricting wall portion 18, i.e., to a position on the negative side in the Y-axis direction. This makes it easier to bend the wiring portions 5A and 5B and sandwich them between the second side walls 17A and 17B.

As shown in FIG. 5, a guide groove 30 that guides the wiring portion 5A is formed on the main surface 14a of the guide wall portion 14. Here, the wiring portion 5A is routed along the main surface 14a, and is guided by the guide groove 30. The guide groove 30 has an arc-shaped curved surface that corresponds to the cylindrical outer surface of the wiring portion 5A. The main surface 14a is formed with a guide groove 30 that extends in the Z-axis direction at a position corresponding to the guided portion E2. The main surface 14a is also formed with a guide groove 30 that extends in the Y-axis direction at a position corresponding to the guided portion E2. The main surface 14a is also formed with a guide groove 30 that extends in a curved manner near the lower end of the guide wall portion 14, where the wiring portion 5A curves.

The manufacturing method of the temperature sensor 1 will now be described. First, the temperature measuring element 8 and wiring sections 5A and 5B are connected and placed on the separator 7 to form an assembly. Next, a filler is filled into the housing section 11 of the first case section 6A, and the assembly is housed in the housing section 11. Next, the wiring sections 5A and 5B are sandwiched between the first side wall sections 16A and 16B and the second side wall sections 17A and 17B of the guide section 12. This leaves the wiring sections 5A and 5B guided by the guide section 12 and allows them to be pulled out from the outlet section 10. Next, the second case section 6B is molded to cover the first case section 6A. With this, the temperature sensor 1 is completed.

Next, we will explain the functions and effects of the temperature sensor 1 according to this embodiment.

In the temperature sensor 1, the case 6 has a guide portion 12 that guides the wiring portions 5A and 5B pulled out from the temperature sensor element 8 to the outlet portion 10. That is, the wiring portions 5A and 5B pulled out from the temperature sensor element 8 extend within the case 6 toward the outlet portion 10 while being guided by the guide portion 12. The wiring portions 5A and 5B are arranged in a first arrangement direction D1 at the lead-out portion E1, where they are pulled out from the temperature sensor element 8. In contrast, the guide portion 12 guides the wiring portions 5A and 5B in a second arrangement direction D2 that is different from the first arrangement direction D1. In this case, the guide portion 12 can form twisted portions (twisted portions TW shown in FIG. 3) in the wiring portions 5A and 5B to change the arrangement direction. When such twisted portions are formed, the wiring portions 5A and 5B are less likely to become misaligned. As a result, misalignment of the wiring portions 5A and 5B can be suppressed.

The wiring sections 5A and 5B may be arranged in the second arrangement direction D2 at the outlet section 10. In this case, a twisted portion is formed in the wiring sections 5A and 5B between the lead-out section E1 and the outlet section 10 so as to change the arrangement direction. When such a twisted portion is formed, the wiring sections 5A and 5B are less likely to become misaligned.

Now, referring to Figure 6, we will explain the wiring portions 5A and 5B of a temperature sensor according to a comparative example. In this comparative example, the first arrangement direction D1 in the lead-out portion E1 and the second arrangement direction D2 in the guided portion E2 are the same Y-axis direction. In this case, the wiring portions 5A and 5B are prone to misalignment in the movement direction MD2 in the guided portion E2. This misalignment can occur during the routing of the wiring portions 5A and 5B or prior to molding the second case portion 6B after the routing operation. If the second case portion 6B is molded while the wiring portions 5A and 5B are misaligned, the uniformity (design value) of the thickness between the outer surface of the second case portion 6B and the wiring portions 5A and 5B cannot be maintained. If an unintended heat source (e.g., a heat source near the wiring portions 5A and 5B) is present in a location other than the vicinity of the temperature measuring element 8, heat may be transferred along the wiring portions 5A and 5B and input to the temperature measuring element 8.

In contrast, in this embodiment, as shown in FIG. 3, a twisted portion TW is formed between the pull-out portion E1 and the guided portion E2, making it less likely for the wiring portions 5A and 5B to become misaligned as a whole. This reduces the problem of uneven thickness of the second case portion 6B due to misalignment, as described above. Furthermore, even if misalignment does occur in the guided portion E2, the movement direction MD1 can be redirected to the Y-axis direction rather than the X-axis direction. For example, if an unintended heat source is likely to be present in the X-axis direction, misalignment of the wiring portions 5A and 5B in the X-axis direction can be suppressed and redirected to a direction that has less impact. Furthermore, when the second arrangement direction D2 is the X-axis direction, the first sidewall portions 16A and 16B only need to sandwich one wiring portion, allowing for stable support of the wiring portions 5A and 5B. In other words, when the second arrangement direction D2 is the Y-axis direction, the first sidewall portions 16A and 16B need to sandwich two wiring portions, which may result in unstable support and make insertion difficult.

The guide portion 12 may have a pair of first sidewall portions 16A, 16B that guide the wiring portions 5A, 5B, and a pair of second sidewall portions 17A, 17B that guide the pair of wiring portions 5A, 5B when they extend in a direction different from the first sidewall portions 16A, 16B. In this case, the guide portion 12 can pull the wiring portions 5A, 5B out of the outlet portion 10 of the case 6 in a direction different from the direction guided by the first sidewall portions 16A, 16B.

The pair of first side wall portions 16A, 16B and the pair of second side wall portions 17A, 17B may sandwich and support the pair of wiring portions 5A, 5B. In this case, the guide portion 12 can sufficiently support the pair of wiring portions 5A, 5B to prevent misalignment.

The pair of second side walls 17A, 17B may be positioned so that their ends 17Aa, 17Ba are offset from each other in the extension direction of the wiring portions 5A, 5B they are guiding. When the pair of wiring portions 5A, 5B curve to be inserted from the first side walls 16A, 16B into the second side walls 17A, 17B, the inner second side wall 17A can smoothly accommodate the curved wiring portions 5A, 5B.

The guide portion 12 has a main surface 14a, and a guide groove 30 that guides the wiring portions 5A and 5B may be formed on the main surface 14a. In this case, the wiring portions 5A and 5B can extend while being guided by the guide groove 30, thereby preventing the wiring portions 5A and 5B from shifting out of position.

The case 6 has a first case portion 6A and a second case portion 6B, and the first case portion 6A and the second case portion 6B may have different heat capacities. For example, if the wiring portions 5A and 5B are subjected to thermal fluctuations, the effects of the thermal fluctuations on the temperature measuring element 8 side can be suppressed by adjusting the amount of heat in each case portion 6A and 6B.

The present invention is not limited to the above-described embodiments.

For example, the wiring structure of wiring sections 5A and 5B and the configuration of case 6 are not limited to the above-described embodiment. Furthermore, the configuration of the guide mechanism of guide section 12 is not limited to the above-described embodiment, and the shape, number, and position of the side wall sections may be changed as appropriate.

Furthermore, the direction in which the wiring portions 5A and 5B are pulled out from the outlet portion of the case 6 is not limited to the above embodiment, and they may be pulled out to the positive side of the Y-axis direction or in other directions. Furthermore, in the above embodiment, the twisted portion TW was formed in one location, but the twisted portion TW may be formed in multiple locations (for example, between the guided portion E2 and the guided portion E3).

1...temperature sensor, 5A, 5B...wiring section, 6...case, 8...temperature measuring element, 10...outlet section, 12...guide section, 14a...main surface, 16A, 16B...first side wall section, 17A, 17B...second side wall section, E1...drawer section, 30...guide groove.

Claims (7)

a temperature measuring element for measuring temperature;
A pair of wiring portions connected to the temperature measuring element;
a case that houses the temperature measuring element and the pair of wiring portions and that allows the wiring portions to exit to the outside through an outlet portion,
the case has a guide portion that guides the pair of wiring portions drawn out from the temperature measuring element to the outlet portion,
the pair of wiring portions are arranged in a first arrangement direction at lead-out portions that are portions that are led out from the temperature measuring element and extend along a first extension direction,
the guide portion guides the pair of wiring portions in a state where the wiring portions are arranged in a second arrangement direction different from the first arrangement direction;
A temperature sensor in which the guided portion, which is the portion of the pair of wiring portions that is guided by the guide portion, extends from the end of the pull-out portion along a second extension direction that intersects the first extension direction and intersects the first arrangement direction . The temperature sensor of claim 1, wherein the pair of wiring portions are arranged in the second arrangement direction at the outlet portion. a temperature measuring element for measuring temperature;
A pair of wiring portions connected to the temperature measuring element;
a case that houses the temperature measuring element and the pair of wiring portions and that allows the wiring portions to exit to the outside through an outlet portion,
the case has a guide portion that guides the pair of wiring portions drawn out from the temperature measuring element to the outlet portion,
the pair of wiring portions are arranged in a first arrangement direction at lead-out portions that are portions that are led out from the temperature measuring element and extend along a first extension direction,
the guide portion guides the pair of wiring portions in a state where the wiring portions are arranged in a second arrangement direction different from the first arrangement direction;
a guided portion of the pair of wiring portions that is guided by the guide portion extends from an end of the lead-out portion along a second extending direction that intersects with the first extending direction,
The guide portion is
a pair of first sidewall portions that guide the pair of wiring portions;
a pair of second sidewall portions that guide the pair of wiring portions that extend in a direction different from the first sidewall portions. The temperature sensor described in claim 3, wherein at least one of the pair of first side wall portions and the pair of second side wall portions sandwich and support the pair of wiring portions. a temperature measuring element for measuring temperature;
A pair of wiring portions connected to the temperature measuring element;
a case that houses the temperature measuring element and the pair of wiring portions and that allows the wiring portions to exit to the outside through an outlet portion,
the case has a guide portion that guides the pair of wiring portions drawn out from the temperature measuring element to the outlet portion,
the pair of wiring portions are arranged in a first arrangement direction at lead-out portions that are portions that are led out from the temperature measuring elements,
the guide portion guides the pair of wiring portions in a state where the wiring portions are arranged in a second arrangement direction different from the first arrangement direction;
The guide portion is
a pair of first sidewall portions that guide the pair of wiring portions;
a pair of second sidewall portions that guide the pair of wiring portions in a state where the wiring portions extend in a direction different from that of the first sidewall portions;
The pair of second side wall portions are arranged such that their ends are offset from each other in the direction in which the wiring portion they are guiding extends. The guide portion has a main surface,
6. The temperature sensor according to claim 1, wherein a guide groove for guiding the wiring portion is formed on the main surface. a temperature measuring element for measuring temperature;
A pair of wiring portions connected to the temperature measuring element;
a case that houses the temperature measuring element and the pair of wiring portions and that allows the wiring portions to exit to the outside through an outlet portion,
the case has a guide portion that guides the pair of wiring portions drawn out from the temperature measuring element to the outlet portion,
the pair of wiring portions are arranged in a first arrangement direction at lead-out portions that are portions that are led out from the temperature measuring elements,
the guide portion guides the pair of wiring portions in a state where the wiring portions are arranged in a second arrangement direction different from the first arrangement direction;
the case has a first case portion and a second case portion;
The temperature sensor, wherein the first case portion and the second case portion have different heat capacities.