Connector structure

Abstract

A connector structure includes a housing that holds a terminal, a thermistor that can detect a temperature of the terminal, and a thermistor holder that brings the thermistor into close contact with the terminal, wherein the housing includes an insulating cylindrical section into which the thermistor holder is inserted, and a notch is formed in the cylindrical section, the notch being open so that the thermistor holder can be pressed in when the thermistor holder is inserted.

Description

Background of the invention; Field of the invention

[0001] Embodiments of the present invention relate to a connector structure. Description of the related technique

[0002] Connectors are known that include terminals to be connected with electrical wires and a housing in which the terminals are enclosed. A thermistor is attached to an outer peripheral surface of the connector. State of the art document / Patent document

[0003] Patent document 1: Japanese unexamined patent application, first publication no. 2023-3340 Summary of the invention

[0004] When mounting a thermistor holder that brings a thermistor into close contact with a terminal, the mounting process can be difficult in some cases.

[0005] One embodiment provides a connector structure that allows for easy mounting of a thermistor holder.

[0006] A connector structure according to one embodiment comprises a housing that holds a terminal, a thermistor that can detect a temperature of the terminal, and a thermistor holder that brings the thermistor into close contact with the terminal, wherein the housing includes an insulating cylindrical section into which the thermistor holder is inserted, and a notch is formed in the cylindrical section, the notch being open so that the thermistor holder can be pressed in when the thermistor holder is inserted.

[0007] According to one embodiment, the thermistor holder can be easily mounted. Brief description of the drawings Fig. Figure 1 is a perspective view showing a connector structure according to one embodiment. Fig. Figure 2 is a top view showing the connector structure according to the embodiment. Fig. 3 is a sectional view taken along line III-III of Fig. 2 is taken. Fig. Figure 4 is an enlarged perspective view showing a cylindrical section of the embodiment. Fig. Figure 5 is a perspective view showing a method of mounting a thermistor holder of the embodiment. Fig. Figure 6 is a perspective view showing a method for mounting the thermistor holder. Fig. 5 below. Fig. Figure 7 is a cross-sectional view showing a case where the thermistor holder is inserted into a cylindrical section of a comparison example. Fig. Figure 8 is a cross-sectional view showing a case where the thermistor holder is used, as follows. Fig. 7. Fig. Figure 9 is a cross-sectional view showing a case in which the thermistor holder is inserted into the cylindrical section of the embodiment. Fig. Figure 10 is a cross-sectional view showing a case where the thermistor holder is inserted into the cylindrical section, as follows. Fig. 9. Detailed description of the invention

[0008] The embodiments are described below with reference to the drawings. In the following description, terms indicating relative or absolute arrangements, such as "parallel," "orthogonal," "center," and "coaxial," denote not only such arrangements or states in a strict sense, but also include arrangements or states in which a relative displacement exists with an angle or distance of such a magnitude that a tolerance or equivalent function can be achieved. In the drawings used in the following description, the scale of each element may be adjusted accordingly to make each element identifiable. <verbinderstruktur>

[0009] Fig. Figure 1 is a perspective view showing a connector structure 1 according to one embodiment. Fig. Figure 2 is a top view showing the connector structure 1 according to the embodiment. Fig. 3 is a cross-sectional view taken along line III-III of Fig. 2 is taken.

[0010] With reference to the Fig. The connector structure 1, comprising components 1 to 3, includes a housing 2 that holds a terminal 10, a thermistor 3 that can detect the temperature of the terminal 10, and a thermistor holder 4 that brings the thermistor 3 into close contact with the terminal 10.

[0011] The connector structure 1 is installed in a vehicle, for example an electric vehicle or a plug-in hybrid vehicle, to supply (charge) an external battery with electrical power. The connector structure 1 is connected to an electrical wire 5 extending from the vehicle-mounted battery. The connector structure 1 forms a charging inlet. By fitting a mating connector (e.g., a charging gun) into the connector structure 1, the battery is supplied with electrical power from outside the vehicle and is charged.

[0012] In the following description, an orthogonal coordinate system consisting of X, Y, and Z is used where necessary. The Z-direction corresponds to an axial direction of a cylindrical section 25, which will be described later. The X-direction corresponds to the direction in which a pair of cylindrical sections 25, which will be described later, adjoin each other. The Y-direction is a direction orthogonal to both the X-direction and the Z-direction. In the following description, the side of the X-direction, the Y-direction, and the Z-direction indicated by the arrow in the drawing are referred to as the plus side (+), and the side opposite the arrow is referred to as the minus side (-). The Z-direction coincides with the fitting direction of the connector structure 1 and the mating connector (not shown). The +Z-side corresponds to the front face in the fitting direction (the side approaching the mating connector, the front face), as seen from the connector structure 1.The -Z side corresponds to the release side in the fitting direction (the side furthest from the mating connector, the back side), as seen from connector structure 1. <anschluss>

[0013] Terminal 10 is made of metal. Terminals 10 are provided in pairs. One end of each pair of electrical wires 5 is connected to each of the pair of terminals 10. The other end of each pair of electrical wires 5 is connected to a battery (not shown). The electrical wire 5 contains a conductor core 5a and an insulating coating 5b covering the conductor core 5a (see figure). Fig. 3).

[0014] The pair of ports 10, for example, have the same shape. Port 10 extends in the Z-direction. Port 10 has a columnar shape. In particular, port 10 has a stepped columnar section that includes a small-diameter section 11 and a large-diameter section 12, which has a larger outer diameter than that of the small-diameter section 11 (see Fig. 3).

[0015] The pair of terminals 10 includes a cylindrical male terminal section 13 that projects in the +Z direction from the +Z end face of the small-diameter section 11. The male terminal section 13 of one terminal 10 of the pair of terminals 10 functions as an anode terminal. The male terminal section 13 of the other terminal 10 of the pair of terminals 10 functions as a cathode terminal. When the connector structure 1 is fitted to a mating connector, the male terminal section 13 of one terminal 10 connects to a female terminal section on the anode side of the mating connector. When the connector structure 1 is fitted to the mating connector, the male terminal section 13 of the other terminal 10 connects to a female terminal section on the cathode side of the mating connector.

[0016] For example, the -Z end face of the large-diameter section 12 is formed with a recess (not shown) that is sunken in the +Z direction. The conductor core wire 5a, exposed at one end section of the electrical wire 5, is inserted into this recess and secured by crimping. This crimping electrically connects the end section of the electrical wire 5 and the terminal 10.

[0017] As in Fig. As shown in Figure 3, an annular groove 11h is formed at a boundary between the small-diameter section 11 and the male connecting section 13. For example, an O-ring 14 is attached to the annular groove 11h. The O-ring 14 is provided, for example, at a boundary between the small-diameter section 11 and a front cover (not shown).

[0018] For example, a stepped section 12a and an annular groove 12h are formed at a boundary between the large-diameter section 12 and the housing 2. The stepped section 12a is locked to a locking projection 20a of a housing body 20, which will be described later. The annular groove 12h is formed on the outer peripheral surface of the large-diameter section 12 near the +Z side of the stepped section 12a. For example, a locking element 15 is attached to the annular groove 12h. The locking element 15 serves to restrict the position of the terminal 10 together with the stepped section 12a and the locking projection 20a. The function of the locking element 15 and the like prevents the terminal 10 from being displaced relative to the housing 2. <Gehäuse>

[0019] As in Fig. As shown in Figure 3, the housing 2 includes, for example, a housing body 20 and a rear cover 21. The housing body 20 is made of, for example, resin. The housing body 20 has through-holes formed in it to guide the pair of terminals 10 and the pair of electrical wires 5 through. The housing body 20 has a shape that is long in the Z direction. Fig. 3 is the middle section of the housing body 20 omitted in the Z direction.

[0020] The housing body 20 serves to hold the pair of terminals 10 and the pair of electrical wires 5. The +Z-side section of the housing body 20 serves to keep the pair of terminals 10 in a mutually isolated state with an interval between them in the X-direction. The -Z-side section of the housing body 20 serves to hold the pair of electrical wires 5, which extend from the pair of terminals 10 to the -Z-side, with an interval between them in the X-direction.

[0021] For example, a seal 22 with a waterproof function is provided between the inner wall surface of the -Z-side section of the housing body 20 and the outer peripheral surface of the electrical wire 5 (coating 5b). The function of the seal 22 is to prevent water from penetrating from the outside into the interior of the housing 2 (the connection section between the conductor core wire 5a of the electrical cable 5 and the terminal 10).

[0022] The rear cover 21 is mounted to the housing body 20 from the -Z side (rear). The rear cover 21 is made of plastic, for example. A front cover (not shown) is mounted to the housing body 20 from the +Z side (front). The outer wall section of the housing body 20 is provided with bolt insertion sections 23, which are provided at a plurality of locations (for example, four locations) and through which bolts are inserted to mount the front cover (see Fig. 2). <thermistor>

[0023] As in Fig. As shown in Figure 2, a pair of thermistors 3 is provided corresponding to each of the pair of terminals 10. The thermistor 3 is attached to the terminal 10 by means of the thermistor holder 4. The thermistor 3 is attached to a portion of the large-diameter section 12 of the terminal 10, which extends from the housing body 20 to the +Z side (hereinafter also referred to as an "attached section 12b").

[0024] By attaching the thermistor 3 to the pair of terminals 10, the temperature of the pair of terminals 10 can be detected. Detecting the temperature of the pair of terminals 10 makes it possible to monitor the temperature transition of the pair of terminals 10 when the connector structure 1 is in use (for example, when charging a battery). <thermistorhalter>

[0025] As in Fig. As shown in Figure 2, the thermistor holder 4 comprises a holder body 40, which holds the thermistor 3, and a pair of retaining sections 41 and 42 extending from the holder body 40 and holding the terminal 10. The pair of retaining sections 41 and 42 are formed in an arc shape that follows the outer periphery of the terminal 10 (attached section 12b) as viewed from the Z-direction. Before the thermistor holder 4 is mounted on the terminal 10, the radius of curvature of the arc-shaped sections (inner peripheral surfaces) of the pair of retaining sections 41 and 42 is smaller than the outer diameter of the terminal 10 (attached section 12b).

[0026] The pair of holding sections 41 and 42, for example, have different lengths (lengths along the outer periphery of connection 10, viewed from the Z-direction). In the example of Fig. 2. The length of the retaining section 41 on the outside is shorter in the X-direction than the length of the retaining section 42 on the inside in the X-direction (on one side of the wall section 27). The pair of retaining sections 41 and 42 can have the same length. The length of each of the retaining sections 41 and 42 can be changed according to the design specifications.

[0027] The thermistor holder 4 brings the thermistor 3 into close contact with the terminal 10 by means of a reaction force generated when the thermistor holder 4 is pressed outwards during assembly. The thermistor holder 4 includes arcuate retaining sections 41 and 42 that follow the outer periphery of the terminal 10. When the thermistor holder 4 is mounted, the thermistor 3 is in close contact with the attached section 12b by means of the reaction force of the pair of retaining sections 41 and 42. <Zylindrischer Abschnitt>

[0028] Fig. Figure 4 is an enlarged perspective view of the cylindrical section 25 of the embodiment.

[0029] With reference to the Fig. The housing 2, comprising components 2 to 4, contains an insulating cylindrical section 25 into which the thermistor holder 4 is inserted. At least a portion of the cylindrical section 25 is formed in a cylindrical shape corresponding to the outer shape of the terminal 10, viewed from the Z-direction. The cylindrical section 25 is provided on the housing body 20. The cylindrical section 25 extends in the +Z-direction from the periphery of the through-hole in the housing body 20 through which the terminal 10 passes. A pair of cylindrical sections 25 is provided side by side. The pair of cylindrical sections 25 has, for example, the same height in the Z-direction.

[0030] The housing 2 further includes an insulating wall section 27 at a point where the pair of cylindrical sections 25 are located side by side. The wall section 27 is positioned midway between the pair of terminals 10 in the X-direction. The wall section 27 is higher than the pair of cylindrical sections 25 in the Z-direction. The +Z-side end section of the wall section 27 is located on the +Z-side end section of each of the pair of cylindrical sections 25.

[0031] The housing 2 is provided with inserted sections 28 into which the pair of thermistors 3 and part of the pair of thermistor holders 4 are inserted from the +Z side. The inserted section 28 has an inner surface that, viewed from the Z direction, conforms to the outer shapes of the thermistor 3 and part of the thermistor holder 4. The inserted section 28 serves to limit the displacement of the thermistor 3 and the thermistor holder 4 in the X and Y directions (displacement in directions other than the +Z direction). The inserted section 28 acts to prevent the thermistor 3 and the thermistor holder 4 from being displaced in the X and Y directions. <kerbe>

[0032] With reference to the Fig. 2 to 4, a notch 26 is formed in the cylindrical section 25, the notch being open so that the thermistor holder 4 can be pressed into it when the thermistor holder 4 is inserted. The notches 26 are formed in each of the pair of cylindrical sections 25. The notch 26 is formed in a section that differs from the section in which the pair of cylindrical sections 25 are adjacent. The notch 26 is formed in a section that differs from the wall section 27.

[0033] The notches 26 are formed at least at positions facing each other in a direction that intersects the axial direction of the cylindrical section 25. The notches 26 are formed at least at positions opposite each other via the connection 10 in the radial direction of the cylindrical section 25 (direction orthogonal to the axial direction of the cylindrical section 25). The notch 26 is formed by opening a portion of the cylindrical section 25 both radially and in the +Z direction of the cylindrical section 25.

[0034] The notch 26 is formed in a region of a central angle of 180 degrees or more when viewed from the axial direction of the cylindrical section 25. In the Fig. 2 and Fig. Section 4 defines the area in which the notch 26 is formed, specified by a central angle A. The notch 26 may, for example, be semicircular when viewed from the axial direction (Z-direction) of the cylindrical section 25, or fan-shaped with a central angle of 180 degrees or more. The shape of the notch 26 is not limited to the above and may be modified according to the design specifications.

[0035] The area in which the notch 26 is formed, for example viewed in the axial direction of the cylindrical section 25, preferably has a central angle of 210 degrees or more, and more preferably a central angle of 240 degrees or more. The lower limit of the area in which the notch 26 is formed is not limited to the above and can be modified according to the design specifications. The lower limit of the area in which the notch 26 is formed only needs to be set such that the thermistor holder 4 can be pressed into it when the thermistor holder 4 is inserted.

[0036] For example, the upper limit of the area in which the notch 26 is formed only needs to be defined to the extent necessary to ensure the strength and stiffness of the cylindrical section 25. The area in which the notch 26 is formed may, for instance, have a mean angle of 330 degrees or less, measured from the axial direction of the cylindrical section 25. The upper limit of the area in which the notch 26 is formed is not limited to the above and may be modified according to the design specifications. <Verfahren zum Montieren des Thermistorhalters>

[0037] Fig. Figure 5 is a perspective view showing a method for mounting the thermistor holder 4 of the embodiment. Fig. Figure 6 is a perspective view showing a procedure for mounting the thermistor holder 4 as follows. Fig. 5 represents.

[0038] As described above, before the thermistor holder 4 is mounted to the terminal 10, the radius of curvature of the arcuate sections (inner peripheral surfaces) of the pair of retaining sections 41 and 42 is smaller than the outer diameter of the terminal 10 (attached section 12b). The thermistor holder 4 is mounted to the terminal 10 in a state where the front cover (not shown) and the like are removed from the housing body 20.

[0039] When mounting the thermistor holder 4 to the connection 10, the thermistor holder 4 is moved in the direction of the Fig. The arrow shown in section 5 (-Z direction) is pressed. Then the thermistor holder 4 (for example, the pair of holding sections 41 and 42) is pressed in the direction shown in Fig. The thermistor holder 4 is pressed into place as indicated by the arrows shown (pointing outwards in the radial direction of terminal 10). The reaction force generated when the thermistor holder 4 is pressed into place causes the thermistor 3 to come into close contact with terminal 10 (attached section 12b). <Fall, in dem der Thermistorhalter in den zylindrischen Abschnitt des Vergleichsbeispiels eingesetzt wird>

[0040] Fig. Figure 7 is a cross-sectional view showing a case in which the thermistor holder 4 is inserted into a cylindrical section 25X of a comparison example. Fig. Figure 8 is a cross-sectional view showing a case in which the thermistor holder 4 is used, as follows. Fig. 7.

[0041] In the comparative example, a notch 26X is formed at a position (a place) on one side (a radial side of the connection 10) in a direction that intersects the axial direction of the cylindrical section 25X.

[0042] In the comparative example, the thermistor holder 4 is mounted to the terminal 10 from a radial side of the terminal 10 in the direction of the Fig. The arrow shown in Figure 7 (-Z direction) is pressed inwards. Then it is difficult to press the thermistor holder 4 parallel to the Z direction, and the thermistor holder 4 is pressed inwards as shown in Figure 7. Fig. Figure 8 is shown at an angle. If the thermistor holder 4 is tilted, assembly (attaching the thermistor holder 4 to the attached section 12b) becomes difficult. <Fall, in dem der Thermistorhalter in den zylindrischen Abschnitt der Ausführungsform eingesetzt wird>

[0043] Fig. Figure 9 is a cross-sectional view showing a case in which the thermistor holder 4 is inserted into the cylindrical section 25 of the embodiment. Fig. Figure 10 is a cross-sectional view showing a case in which the thermistor holder 4 is inserted into the cylindrical section 25, as follows. Fig. 9.

[0044] As described above, in this embodiment the notches 26 are formed at least at positions opposite each other in a direction that intersects the axial direction of the cylindrical section 25. The notch 26 is, for example, formed in a semicircular shape when viewed from the axial direction of the cylindrical section 25, or in a fan shape with a central angle of 180 degrees or more.

[0045] In this embodiment, when the thermistor holder 4 is mounted on the terminal 10, it can be opened from both radial sides of the terminal 10 in the direction of the Fig. The thermistor holder 4 can be pressed inwards in the direction of the arrow shown in Figure 9 (-Z direction). In this embodiment, for example, a worker can press both sections of the thermistor holder 4, which face each other, with the connection 10 arranged between them, using their fingers. By pressing the thermistor holder 4 inwards from both radial sides of the connection 10, it is possible to press the thermistor holder 4 inwards while maintaining parallelism in the Z direction, as shown in Figure 9. Fig. Figure 10 shows the embodiment. In this embodiment, the inclination of the thermistor holder 4 is suppressed, which facilitates assembly (attachment to the attached section 12b).

[0046] When mounting the thermistor holder 4 to terminal 10, the worker does not necessarily have to press the thermistor holder 4 in with their fingers. The worker can, for example, use a tool, a machine, or similar to press the thermistor holder 4 in. The method used to press the thermistor holder 4 in may be modified according to the design specifications. <Betrieb und Wirkungen>

[0047] As described above, the connector structure 1, according to the present embodiment, comprises a housing 2 that holds a terminal 10, a thermistor 3 that can detect the temperature of the terminal 10, and a thermistor holder 4 that brings the thermistor 3 into close contact with the terminal 10. The housing 2 includes an insulating cylindrical section 25 into which the thermistor holder 4 is inserted. A notch 26 is formed in the cylindrical section 25, the notch being open to allow the thermistor holder 4 to be pressed into it when the thermistor holder 4 is inserted. According to this configuration, the thermistor holder 4 can be pressed into the cylindrical section 25 through the notch 26. Therefore, the thermistor holder 4 can be easily installed. Furthermore, the installation of the thermistor holder 4 requires neither time nor specialized knowledge.

[0048] In the present embodiment, the notches 26 are formed at least at positions that are opposite each other in a direction that intersects the axial direction of the cylindrical section 25. According to this configuration, the thermistor holder 4 can be pressed into the cylindrical section 25 through the notches 26, which are formed at opposite positions. Therefore, the thermistor holder 4 can be mounted more easily.

[0049] In the present embodiment, the notch 26 is formed in a region with a central angle of 180 degrees or more, as viewed from the axial direction of the cylindrical section 25. According to this configuration, the thermistor holder 4 can be inserted through a wider area of ​​the notch 26 than in the case where the notch 26 is formed in a region with a central angle of less than 180 degrees. Therefore, the thermistor holder 4 can be mounted more easily.

[0050] In the present embodiment, a pair of cylindrical sections 25 are arranged side by side. The notch 26 is formed in a section that differs from the section in which the pair of cylindrical sections 25 are located side by side. According to this configuration, the notch 26 is not required in the section in which the pair of cylindrical sections 25 are arranged side by side, and therefore no space is needed into which the worker can press with his or her fingers. This saved space allows the interval between the pair of adjacent cylindrical sections 25 to be shortened. Therefore, the connector structure 1 can be kept from becoming too large.

[0051] In the present embodiment, the housing 2 further includes an insulating wall section 27 at a point where the pair of cylindrical sections 25 are adjacent. According to this configuration, the wall section 27 can ensure insulation between the adjacent sections of the pair of cylindrical sections 25. Furthermore, the wall section 27 can ensure the strength and stiffness of the pair of cylindrical sections 25.

[0052] In the present embodiment, the thermistor holder 4 brings the thermistor 3 into close contact with the terminal 10 by means of a reaction force generated when the thermistor holder 4 is pressed outwards during assembly. According to this configuration, no separate component is required to bring the thermistor 3 into close contact with the terminal 10, thus reducing the number of components.

[0053] In the present embodiment, the terminal 10 has a column-shaped form. The thermistor holder 4 includes arcuate retaining sections 41 and 42 that follow the outer periphery of the terminal 10. The thermistor holder 4 brings the thermistor 3 into close contact with the terminal 10 by means of a reaction force generated when the retaining sections 41 and 42 are pressed outwards during assembly.

[0054] According to this configuration, the contact between the outer peripheral section of the terminal 10 and the inner peripheral sections of the retaining sections 41 and 42 allows the reaction force of the retaining sections 41 and 42 to be generated more stably. <modifikationsbeispiele>

[0055] In the embodiment described above, an example was described in which the notches are formed at least at positions opposite each other in a direction that intersects the axial direction of the cylindrical section, but the present invention is not limited to this example. For instance, the notch can be formed at a position on one side in a direction that intersects the axial direction of the cylindrical section. The notch only needs to be formed in the cylindrical section such that it is open to allow the thermistor holder to be pressed into it when the thermistor holder is inserted. The position at which the notch is formed can be changed according to the design specifications.

[0056] In the embodiment described above, an example was described in which the notch is formed in a region with a central angle of 180 degrees or more, as seen from the axial direction of the cylindrical section, but the present invention is not limited to this example. For example, the notch may be formed in a region with a central angle of less than 180 degrees, as seen from the axial direction of the cylindrical section. For example, a plurality of notches may be formed at intervals in the circumferential direction of the cylindrical section. For example, the notch may be formed continuously in the circumferential direction of the cylindrical section. For example, the notch may be formed discontinuously (intermittently) in the circumferential direction of the cylindrical section. The region in which the notch is formed may be modified according to the design specifications.

[0057] In the embodiment described above, an example was described in which the notch is formed in a section different from the section in which the pair of cylindrical sections are adjacent, but the present invention is not limited to this example. For example, the notch may be formed in a section in which the pair of cylindrical sections are adjacent. For example, the notch may be formed in one of the pair of cylindrical sections and not in the other. The manner in which the notch is formed in the pair of cylindrical sections can be modified according to the design specifications.

[0058] In the embodiment described above, an example was described in which the housing further comprises an insulating wall section at a point where the pair of cylindrical sections are adjacent, but the present invention is not limited to this example. For example, the housing may not include an insulating wall section at a point where the pair of cylindrical sections are adjacent. The manner in which the insulating wall section is installed can be modified according to the design specifications.

[0059] In the embodiment described above, an example was described in which the thermistor holder brings the thermistor into close contact with the terminal by means of a reaction force generated when the thermistor holder is pressed outwards during assembly. However, the present invention is not limited to this example. For instance, the connector structure may include a separate component to bring the thermistor into close contact with the terminal. The method for bringing the thermistor into close contact with the terminal may be modified according to the design specifications.

[0060] In the embodiment described above, an example was described in which the terminal has a column-shaped form and the thermistor holder includes an arc-shaped retaining section that follows the outer periphery of the terminal, but the present invention is not limited to this example. For instance, the retaining section can have a shape other than an arc that follows the outer periphery of the terminal. For instance, the thermistor holder only needs to have a shape that allows it to make contact with the outer periphery of the terminal. The shape of the retaining section can be modified according to the design specifications.

[0061] Although the embodiments and modification examples have been described above, they are not limited to these examples. The embodiments and modification examples can be modified and combined by adding, omitting, replacing, or otherwise altering the configuration without departing from the spirit of the present invention. Reference symbol list 1 connector structure 2 cases 3 Thermistor 4 thermistor holders 10 connection 25 Cylindrical section 26 notch 27 Wall section 41, 42 Stop section A central angle< / modifikationsbeispiele> < / kerbe> < / thermistorhalter> < / thermistor> < / anschluss> < / verbinderstruktur>

Claims

[1] A connector structure (1), comprising: a housing (2) that holds a connector (10); a thermistor (3) that can detect a temperature of the terminal (10); and a thermistor holder (4) that brings the thermistor (3) into close contact with the terminal (10), wherein the housing (2) comprises an insulating cylindrical section (25) into which the thermistor holder (4) is inserted, and a notch (26) is formed in the cylindrical section (25), wherein the notch (26) is open so that the thermistor holder (4) can be pressed into it when the thermistor holder (4) is inserted. [2] The connector structure (1) according to claim 1, wherein the notch (26) is formed at least at one position which are opposite each other in a direction which intersects an axial direction of the cylindrical section (25). [3] The connector structure (1) according to claim 2, wherein the notch (26) is formed within a region of a central angle of 180 degrees or more when viewed from the axial direction. [4] The connector structure (1) according to any one of claims 1 to 3, wherein a pair of the cylindrical sections (25) is provided side by side and the notch (26) is formed in a section which differs from a section in which the pair of cylindrical sections (25) are side by side. [5] The connector structure (1) according to claim 4, wherein the housing (2) further comprises an insulating wall section at the section where the pair of cylindrical sections (25) are adjacent. [6] The connector structure (1) according to any one of claims 1 to 3, wherein the thermistor holder (4) brings the thermistor (3) into close contact with the terminal (10) by means of a reaction force which is generated when the thermistor holder (4) is pressed outwards during assembly to the terminal (10). [7] The connector structure (1) according to claim 6, wherein the connection (10) has a columnar shape, the thermistor holder (4) includes an arc-shaped holding section (41, 42) that follows an outer periphery of the connection (10), and the thermistor holder (4) brings the thermistor (3) into close contact with the terminal (10) by means of a reaction force which is generated when the holding section (41, 42) is pressed outwards during assembly to the terminal (10).

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